GTPase Der [Mycobacterium tuberculosis H37Rv]
Protein Classification
ribosome-associated GTPase EngA( domain architecture ID 11479870)
ribosome-associated GTPase EngA (Der) is an essential bacterial GTPase that is required for 50S ribosomal subunit stability; it contains two consecutive GTPase domains and a KH-domain
List of domain hits
| Name | Accession | Description | Interval | E-value | |||||||
| PRK03003 | PRK03003 | GTP-binding protein Der; Reviewed |
1-459 | 0e+00 | |||||||
GTP-binding protein Der; Reviewed : Pssm-ID: 179525 [Multi-domain] Cd Length: 472 Bit Score: 861.58 E-value: 0e+00
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| Name | Accession | Description | Interval | E-value | |||||||
| PRK03003 | PRK03003 | GTP-binding protein Der; Reviewed |
1-459 | 0e+00 | |||||||
GTP-binding protein Der; Reviewed Pssm-ID: 179525 [Multi-domain] Cd Length: 472 Bit Score: 861.58 E-value: 0e+00
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| Der | COG1160 | Double Era-like domain GTPase Der [Translation, ribosomal structure and biogenesis]; |
26-458 | 0e+00 | |||||||
Double Era-like domain GTPase Der [Translation, ribosomal structure and biogenesis]; Pssm-ID: 440774 [Multi-domain] Cd Length: 438 Bit Score: 601.63 E-value: 0e+00
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| GTPase_EngA | TIGR03594 | ribosome-associated GTPase EngA; EngA (YfgK, Der) is a ribosome-associated essential GTPase ... |
29-453 | 0e+00 | |||||||
ribosome-associated GTPase EngA; EngA (YfgK, Der) is a ribosome-associated essential GTPase with a duplication of its GTP-binding domain. It is broadly to universally distributed among bacteria. It appears to function in ribosome biogenesis or stability. [Protein synthesis, Other] Pssm-ID: 274667 [Multi-domain] Cd Length: 428 Bit Score: 553.98 E-value: 0e+00
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| EngA2 | cd01895 | EngA2 GTPase contains the second domain of EngA; This EngA2 subfamily CD represents the second ... |
198-368 | 1.93e-77 | |||||||
EngA2 GTPase contains the second domain of EngA; This EngA2 subfamily CD represents the second GTPase domain of EngA and its orthologs, which are composed of two adjacent GTPase domains. Since the sequences of the two domains are more similar to each other than to other GTPases, it is likely that an ancient gene duplication, rather than a fusion of evolutionarily distinct GTPases, gave rise to this family. Although the exact function of these proteins has not been elucidated, studies have revealed that the E. coli EngA homolog, Der, and Neisseria gonorrhoeae EngA are essential for cell viability. A recent report suggests that E. coli Der functions in ribosome assembly and stability. Pssm-ID: 206682 [Multi-domain] Cd Length: 174 Bit Score: 238.87 E-value: 1.93e-77
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| MnmE_helical | pfam12631 | MnmE helical domain; The tRNA modification GTPase MnmE consists of three domains. An ... |
201-374 | 6.97e-30 | |||||||
MnmE helical domain; The tRNA modification GTPase MnmE consists of three domains. An N-terminal domain, a helical domain and a GTPase domain which is nested within the helical domain. This family represents the helical domain. Pssm-ID: 463649 [Multi-domain] Cd Length: 326 Bit Score: 118.74 E-value: 6.97e-30
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| Name | Accession | Description | Interval | E-value | |||||||
| PRK03003 | PRK03003 | GTP-binding protein Der; Reviewed |
1-459 | 0e+00 | |||||||
GTP-binding protein Der; Reviewed Pssm-ID: 179525 [Multi-domain] Cd Length: 472 Bit Score: 861.58 E-value: 0e+00
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| PRK09518 | PRK09518 | bifunctional cytidylate kinase/GTPase Der; Reviewed |
4-461 | 0e+00 | |||||||
bifunctional cytidylate kinase/GTPase Der; Reviewed Pssm-ID: 236546 [Multi-domain] Cd Length: 712 Bit Score: 651.09 E-value: 0e+00
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| Der | COG1160 | Double Era-like domain GTPase Der [Translation, ribosomal structure and biogenesis]; |
26-458 | 0e+00 | |||||||
Double Era-like domain GTPase Der [Translation, ribosomal structure and biogenesis]; Pssm-ID: 440774 [Multi-domain] Cd Length: 438 Bit Score: 601.63 E-value: 0e+00
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| GTPase_EngA | TIGR03594 | ribosome-associated GTPase EngA; EngA (YfgK, Der) is a ribosome-associated essential GTPase ... |
29-453 | 0e+00 | |||||||
ribosome-associated GTPase EngA; EngA (YfgK, Der) is a ribosome-associated essential GTPase with a duplication of its GTP-binding domain. It is broadly to universally distributed among bacteria. It appears to function in ribosome biogenesis or stability. [Protein synthesis, Other] Pssm-ID: 274667 [Multi-domain] Cd Length: 428 Bit Score: 553.98 E-value: 0e+00
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| PRK00093 | PRK00093 | GTP-binding protein Der; Reviewed |
27-458 | 0e+00 | |||||||
GTP-binding protein Der; Reviewed Pssm-ID: 234628 [Multi-domain] Cd Length: 435 Bit Score: 525.77 E-value: 0e+00
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| EngA2 | cd01895 | EngA2 GTPase contains the second domain of EngA; This EngA2 subfamily CD represents the second ... |
198-368 | 1.93e-77 | |||||||
EngA2 GTPase contains the second domain of EngA; This EngA2 subfamily CD represents the second GTPase domain of EngA and its orthologs, which are composed of two adjacent GTPase domains. Since the sequences of the two domains are more similar to each other than to other GTPases, it is likely that an ancient gene duplication, rather than a fusion of evolutionarily distinct GTPases, gave rise to this family. Although the exact function of these proteins has not been elucidated, studies have revealed that the E. coli EngA homolog, Der, and Neisseria gonorrhoeae EngA are essential for cell viability. A recent report suggests that E. coli Der functions in ribosome assembly and stability. Pssm-ID: 206682 [Multi-domain] Cd Length: 174 Bit Score: 238.87 E-value: 1.93e-77
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| EngA1 | cd01894 | EngA1 GTPase contains the first domain of EngA; This EngA1 subfamily CD represents the first ... |
30-186 | 7.69e-71 | |||||||
EngA1 GTPase contains the first domain of EngA; This EngA1 subfamily CD represents the first GTPase domain of EngA and its orthologs, which are composed of two adjacent GTPase domains. Since the sequences of the two domains are more similar to each other than to other GTPases, it is likely that an ancient gene duplication, rather than a fusion of evolutionarily distinct GTPases, gave rise to this family. Although the exact function of these proteins has not been elucidated, studies have revealed that the E. coli EngA homolog, Der, and Neisseria gonorrhoeae EngA are essential for cell viability. A recent report suggests that E. coli Der functions in ribosome assembly and stability. Pssm-ID: 206681 [Multi-domain] Cd Length: 157 Bit Score: 221.54 E-value: 7.69e-71
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| MnmE | COG0486 | tRNA U34 5-carboxymethylaminomethyl modifying GTPase MnmE/TrmE [Translation, ribosomal ... |
201-369 | 3.96e-30 | |||||||
tRNA U34 5-carboxymethylaminomethyl modifying GTPase MnmE/TrmE [Translation, ribosomal structure and biogenesis]; tRNA U34 5-carboxymethylaminomethyl modifying GTPase MnmE/TrmE is part of the Pathway/BioSystem: tRNA modification Pssm-ID: 440253 [Multi-domain] Cd Length: 448 Bit Score: 121.71 E-value: 3.96e-30
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| MnmE_helical | pfam12631 | MnmE helical domain; The tRNA modification GTPase MnmE consists of three domains. An ... |
201-374 | 6.97e-30 | |||||||
MnmE helical domain; The tRNA modification GTPase MnmE consists of three domains. An N-terminal domain, a helical domain and a GTPase domain which is nested within the helical domain. This family represents the helical domain. Pssm-ID: 463649 [Multi-domain] Cd Length: 326 Bit Score: 118.74 E-value: 6.97e-30
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| trmE | cd04164 | trmE is a tRNA modification GTPase; TrmE (MnmE, ThdF, MSS1) is a 3-domain protein found in ... |
201-370 | 2.58e-29 | |||||||
trmE is a tRNA modification GTPase; TrmE (MnmE, ThdF, MSS1) is a 3-domain protein found in bacteria and eukaryotes. It controls modification of the uridine at the wobble position (U34) of tRNAs that read codons ending with A or G in the mixed codon family boxes. TrmE contains a GTPase domain that forms a canonical Ras-like fold. It functions a molecular switch GTPase, and apparently uses a conformational change associated with GTP hydrolysis to promote the tRNA modification reaction, in which the conserved cysteine in the C-terminal domain is thought to function as a catalytic residue. In bacteria that are able to survive in extremely low pH conditions, TrmE regulates glutamate-dependent acid resistance. Pssm-ID: 206727 [Multi-domain] Cd Length: 159 Bit Score: 112.20 E-value: 2.58e-29
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| MMR_HSR1 | pfam01926 | 50S ribosome-binding GTPase; The full-length GTPase protein is required for the complete ... |
201-319 | 1.62e-28 | |||||||
50S ribosome-binding GTPase; The full-length GTPase protein is required for the complete activity of the protein of interacting with the 50S ribosome and binding of both adenine and guanine nucleotides, with a preference for guanine nucleotide. Pssm-ID: 460387 [Multi-domain] Cd Length: 113 Bit Score: 108.48 E-value: 1.62e-28
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| MMR_HSR1 | pfam01926 | 50S ribosome-binding GTPase; The full-length GTPase protein is required for the complete ... |
29-143 | 2.77e-28 | |||||||
50S ribosome-binding GTPase; The full-length GTPase protein is required for the complete activity of the protein of interacting with the 50S ribosome and binding of both adenine and guanine nucleotides, with a preference for guanine nucleotide. Pssm-ID: 460387 [Multi-domain] Cd Length: 113 Bit Score: 108.09 E-value: 2.77e-28
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| Era_like | cd00880 | E. coli Ras-like protein (Era)-like GTPase; The Era (E. coli Ras-like protein)-like family ... |
203-361 | 3.80e-28 | |||||||
E. coli Ras-like protein (Era)-like GTPase; The Era (E. coli Ras-like protein)-like family includes several distinct subfamilies (TrmE/ThdF, FeoB, YihA (EngB), Era, and EngA/YfgK) that generally show sequence conservation in the region between the Walker A and B motifs (G1 and G3 box motifs), to the exclusion of other GTPases. TrmE is ubiquitous in bacteria and is a widespread mitochondrial protein in eukaryotes, but is absent from archaea. The yeast member of TrmE family, MSS1, is involved in mitochondrial translation; bacterial members are often present in translation-related operons. FeoB represents an unusual adaptation of GTPases for high-affinity iron (II) transport. YihA (EngB) family of GTPases is typified by the E. coli YihA, which is an essential protein involved in cell division control. Era is characterized by a distinct derivative of the KH domain (the pseudo-KH domain) which is located C-terminal to the GTPase domain. EngA and its orthologs are composed of two GTPase domains and, since the sequences of the two domains are more similar to each other than to other GTPases, it is likely that an ancient gene duplication, rather than a fusion of evolutionarily distinct GTPases, gave rise to this family. Pssm-ID: 206646 [Multi-domain] Cd Length: 161 Bit Score: 109.26 E-value: 3.80e-28
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| trmE | PRK05291 | tRNA uridine-5-carboxymethylaminomethyl(34) synthesis GTPase MnmE; |
201-371 | 3.37e-25 | |||||||
tRNA uridine-5-carboxymethylaminomethyl(34) synthesis GTPase MnmE; Pssm-ID: 235392 [Multi-domain] Cd Length: 449 Bit Score: 107.50 E-value: 3.37e-25
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| Era_like | cd00880 | E. coli Ras-like protein (Era)-like GTPase; The Era (E. coli Ras-like protein)-like family ... |
30-186 | 1.51e-24 | |||||||
E. coli Ras-like protein (Era)-like GTPase; The Era (E. coli Ras-like protein)-like family includes several distinct subfamilies (TrmE/ThdF, FeoB, YihA (EngB), Era, and EngA/YfgK) that generally show sequence conservation in the region between the Walker A and B motifs (G1 and G3 box motifs), to the exclusion of other GTPases. TrmE is ubiquitous in bacteria and is a widespread mitochondrial protein in eukaryotes, but is absent from archaea. The yeast member of TrmE family, MSS1, is involved in mitochondrial translation; bacterial members are often present in translation-related operons. FeoB represents an unusual adaptation of GTPases for high-affinity iron (II) transport. YihA (EngB) family of GTPases is typified by the E. coli YihA, which is an essential protein involved in cell division control. Era is characterized by a distinct derivative of the KH domain (the pseudo-KH domain) which is located C-terminal to the GTPase domain. EngA and its orthologs are composed of two GTPase domains and, since the sequences of the two domains are more similar to each other than to other GTPases, it is likely that an ancient gene duplication, rather than a fusion of evolutionarily distinct GTPases, gave rise to this family. Pssm-ID: 206646 [Multi-domain] Cd Length: 161 Bit Score: 99.24 E-value: 1.51e-24
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| Era | COG1159 | GTPase Era, involved in 16S rRNA processing [Translation, ribosomal structure and biogenesis]; |
29-188 | 4.50e-24 | |||||||
GTPase Era, involved in 16S rRNA processing [Translation, ribosomal structure and biogenesis]; Pssm-ID: 440773 [Multi-domain] Cd Length: 290 Bit Score: 101.60 E-value: 4.50e-24
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| Era | cd04163 | E. coli Ras-like protein (Era) is a multifunctional GTPase; Era (E. coli Ras-like protein) is ... |
29-180 | 5.43e-24 | |||||||
E. coli Ras-like protein (Era) is a multifunctional GTPase; Era (E. coli Ras-like protein) is a multifunctional GTPase found in all bacteria except some eubacteria. It binds to the 16S ribosomal RNA (rRNA) of the 30S subunit and appears to play a role in the assembly of the 30S subunit, possibly by chaperoning the 16S rRNA. It also contacts several assembly elements of the 30S subunit. Era couples cell growth with cytokinesis and plays a role in cell division and energy metabolism. Homologs have also been found in eukaryotes. Era contains two domains: the N-terminal GTPase domain and a C-terminal domain KH domain that is critical for RNA binding. Both domains are important for Era function. Era is functionally able to compensate for deletion of RbfA, a cold-shock adaptation protein that is required for efficient processing of the 16S rRNA. Pssm-ID: 206726 [Multi-domain] Cd Length: 168 Bit Score: 97.92 E-value: 5.43e-24
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| era | PRK00089 | GTPase Era; Reviewed |
29-188 | 1.63e-23 | |||||||
GTPase Era; Reviewed Pssm-ID: 234624 [Multi-domain] Cd Length: 292 Bit Score: 100.12 E-value: 1.63e-23
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| Ras_like_GTPase | cd00882 | Rat sarcoma (Ras)-like superfamily of small guanosine triphosphatases (GTPases); Ras-like ... |
30-180 | 3.53e-21 | |||||||
Rat sarcoma (Ras)-like superfamily of small guanosine triphosphatases (GTPases); Ras-like GTPase superfamily. The Ras-like superfamily of small GTPases consists of several families with an extremely high degree of structural and functional similarity. The Ras superfamily is divided into at least four families in eukaryotes: the Ras, Rho, Rab, and Sar1/Arf families. This superfamily also includes proteins like the GTP translation factors, Era-like GTPases, and G-alpha chain of the heterotrimeric G proteins. Members of the Ras superfamily regulate a wide variety of cellular functions: the Ras family regulates gene expression, the Rho family regulates cytoskeletal reorganization and gene expression, the Rab and Sar1/Arf families regulate vesicle trafficking, and the Ran family regulates nucleocytoplasmic transport and microtubule organization. The GTP translation factor family regulates initiation, elongation, termination, and release in translation, and the Era-like GTPase family regulates cell division, sporulation, and DNA replication. Members of the Ras superfamily are identified by the GTP binding site, which is made up of five characteristic sequence motifs, and the switch I and switch II regions. Pssm-ID: 206648 [Multi-domain] Cd Length: 161 Bit Score: 89.82 E-value: 3.53e-21
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| KH_dom-like | pfam14714 | KH-domain-like of EngA bacterial GTPase enzymes, C-terminal; The KH-like domain at the ... |
375-453 | 6.46e-21 | |||||||
KH-domain-like of EngA bacterial GTPase enzymes, C-terminal; The KH-like domain at the C-terminus of the EngA subfamily of essential bacterial GTPases has a unique domain structure position. The two adjacent GTPase domains (GD1 and GD2), two domains of family MMR_HSR1, pfam01926, pack at either side of the C-terminal domain. This C-terminal domain resembles a KH domain but is missing the distinctive RNA recognition elements. Conserved motifs of the nucleotide binding site of GD1 are integral parts of the GD1-KH domain interface, suggesting the interactions between these two domains are directly influenced by the GTP/GDP cycling of the protein. In contrast, the GD2-KH domain interface is distal to the GDP binding site of GD2. This family has not been added to the KH clan since SCOP classifies it separately due to its missing the key KH motif/fold. Pssm-ID: 464277 [Multi-domain] Cd Length: 81 Bit Score: 86.69 E-value: 6.46e-21
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| mnmE_trmE_thdF | TIGR00450 | tRNA modification GTPase TrmE; TrmE, also called MnmE and previously designated ThdF ... |
199-330 | 1.03e-20 | |||||||
tRNA modification GTPase TrmE; TrmE, also called MnmE and previously designated ThdF (thiophene and furan oxidation protein), is a GTPase involved in tRNA modification to create 5-methylaminomethyl-2-thiouridine in the wobble position of some tRNAs. This protein and GidA form an alpha2/beta2 heterotetramer. [Protein synthesis, tRNA and rRNA base modification] Pssm-ID: 273083 [Multi-domain] Cd Length: 442 Bit Score: 94.09 E-value: 1.03e-20
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| Ras_like_GTPase | cd00882 | Rat sarcoma (Ras)-like superfamily of small guanosine triphosphatases (GTPases); Ras-like ... |
203-358 | 2.27e-20 | |||||||
Rat sarcoma (Ras)-like superfamily of small guanosine triphosphatases (GTPases); Ras-like GTPase superfamily. The Ras-like superfamily of small GTPases consists of several families with an extremely high degree of structural and functional similarity. The Ras superfamily is divided into at least four families in eukaryotes: the Ras, Rho, Rab, and Sar1/Arf families. This superfamily also includes proteins like the GTP translation factors, Era-like GTPases, and G-alpha chain of the heterotrimeric G proteins. Members of the Ras superfamily regulate a wide variety of cellular functions: the Ras family regulates gene expression, the Rho family regulates cytoskeletal reorganization and gene expression, the Rab and Sar1/Arf families regulate vesicle trafficking, and the Ran family regulates nucleocytoplasmic transport and microtubule organization. The GTP translation factor family regulates initiation, elongation, termination, and release in translation, and the Era-like GTPase family regulates cell division, sporulation, and DNA replication. Members of the Ras superfamily are identified by the GTP binding site, which is made up of five characteristic sequence motifs, and the switch I and switch II regions. Pssm-ID: 206648 [Multi-domain] Cd Length: 161 Bit Score: 87.51 E-value: 2.27e-20
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| EngA1 | cd01894 | EngA1 GTPase contains the first domain of EngA; This EngA1 subfamily CD represents the first ... |
203-326 | 1.22e-19 | |||||||
EngA1 GTPase contains the first domain of EngA; This EngA1 subfamily CD represents the first GTPase domain of EngA and its orthologs, which are composed of two adjacent GTPase domains. Since the sequences of the two domains are more similar to each other than to other GTPases, it is likely that an ancient gene duplication, rather than a fusion of evolutionarily distinct GTPases, gave rise to this family. Although the exact function of these proteins has not been elucidated, studies have revealed that the E. coli EngA homolog, Der, and Neisseria gonorrhoeae EngA are essential for cell viability. A recent report suggests that E. coli Der functions in ribosome assembly and stability. Pssm-ID: 206681 [Multi-domain] Cd Length: 157 Bit Score: 85.56 E-value: 1.22e-19
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| GTP_HydF | TIGR03918 | [FeFe] hydrogenase H-cluster maturation GTPase HydF; This model describes the family of the ... |
201-361 | 1.82e-19 | |||||||
[FeFe] hydrogenase H-cluster maturation GTPase HydF; This model describes the family of the [Fe] hydrogenase maturation protein HypF as characterized in Chlamydomonas reinhardtii and found, in an operon with radical SAM proteins HydE and HydG, in numerous bacteria. It has GTPase activity, can bind an 4Fe-4S cluster, and is essential for hydrogenase activity. [Protein fate, Protein modification and repair] Pssm-ID: 274853 [Multi-domain] Cd Length: 391 Bit Score: 89.88 E-value: 1.82e-19
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| trmE | cd04164 | trmE is a tRNA modification GTPase; TrmE (MnmE, ThdF, MSS1) is a 3-domain protein found in ... |
29-186 | 3.10e-19 | |||||||
trmE is a tRNA modification GTPase; TrmE (MnmE, ThdF, MSS1) is a 3-domain protein found in bacteria and eukaryotes. It controls modification of the uridine at the wobble position (U34) of tRNAs that read codons ending with A or G in the mixed codon family boxes. TrmE contains a GTPase domain that forms a canonical Ras-like fold. It functions a molecular switch GTPase, and apparently uses a conformational change associated with GTP hydrolysis to promote the tRNA modification reaction, in which the conserved cysteine in the C-terminal domain is thought to function as a catalytic residue. In bacteria that are able to survive in extremely low pH conditions, TrmE regulates glutamate-dependent acid resistance. Pssm-ID: 206727 [Multi-domain] Cd Length: 159 Bit Score: 84.47 E-value: 3.10e-19
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| Era | COG1159 | GTPase Era, involved in 16S rRNA processing [Translation, ribosomal structure and biogenesis]; |
202-369 | 1.05e-18 | |||||||
GTPase Era, involved in 16S rRNA processing [Translation, ribosomal structure and biogenesis]; Pssm-ID: 440773 [Multi-domain] Cd Length: 290 Bit Score: 86.20 E-value: 1.05e-18
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| small_GTP | TIGR00231 | small GTP-binding protein domain; Proteins with a small GTP-binding domain recognized by this ... |
199-362 | 3.47e-18 | |||||||
small GTP-binding protein domain; Proteins with a small GTP-binding domain recognized by this model include Ras, RhoA, Rab11, translation elongation factor G, translation initiation factor IF-2, tetratcycline resistance protein TetM, CDC42, Era, ADP-ribosylation factors, tdhF, and many others. In some proteins the domain occurs more than once.This model recognizes a large number of small GTP-binding proteins and related domains in larger proteins. Note that the alpha chains of heterotrimeric G proteins are larger proteins in which the NKXD motif is separated from the GxxxxGK[ST] motif (P-loop) by a long insert and are not easily detected by this model. [Unknown function, General] Pssm-ID: 272973 [Multi-domain] Cd Length: 162 Bit Score: 81.65 E-value: 3.47e-18
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| MnmE | COG0486 | tRNA U34 5-carboxymethylaminomethyl modifying GTPase MnmE/TrmE [Translation, ribosomal ... |
29-180 | 3.95e-18 | |||||||
tRNA U34 5-carboxymethylaminomethyl modifying GTPase MnmE/TrmE [Translation, ribosomal structure and biogenesis]; tRNA U34 5-carboxymethylaminomethyl modifying GTPase MnmE/TrmE is part of the Pathway/BioSystem: tRNA modification Pssm-ID: 440253 [Multi-domain] Cd Length: 448 Bit Score: 86.27 E-value: 3.95e-18
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| Era | cd04163 | E. coli Ras-like protein (Era) is a multifunctional GTPase; Era (E. coli Ras-like protein) is ... |
202-362 | 6.52e-18 | |||||||
E. coli Ras-like protein (Era) is a multifunctional GTPase; Era (E. coli Ras-like protein) is a multifunctional GTPase found in all bacteria except some eubacteria. It binds to the 16S ribosomal RNA (rRNA) of the 30S subunit and appears to play a role in the assembly of the 30S subunit, possibly by chaperoning the 16S rRNA. It also contacts several assembly elements of the 30S subunit. Era couples cell growth with cytokinesis and plays a role in cell division and energy metabolism. Homologs have also been found in eukaryotes. Era contains two domains: the N-terminal GTPase domain and a C-terminal domain KH domain that is critical for RNA binding. Both domains are important for Era function. Era is functionally able to compensate for deletion of RbfA, a cold-shock adaptation protein that is required for efficient processing of the 16S rRNA. Pssm-ID: 206726 [Multi-domain] Cd Length: 168 Bit Score: 80.97 E-value: 6.52e-18
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| era | PRK00089 | GTPase Era; Reviewed |
202-369 | 2.20e-17 | |||||||
GTPase Era; Reviewed Pssm-ID: 234624 [Multi-domain] Cd Length: 292 Bit Score: 82.40 E-value: 2.20e-17
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| trmE | PRK05291 | tRNA uridine-5-carboxymethylaminomethyl(34) synthesis GTPase MnmE; |
29-180 | 2.12e-16 | |||||||
tRNA uridine-5-carboxymethylaminomethyl(34) synthesis GTPase MnmE; Pssm-ID: 235392 [Multi-domain] Cd Length: 449 Bit Score: 80.93 E-value: 2.12e-16
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| mnmE_trmE_thdF | TIGR00450 | tRNA modification GTPase TrmE; TrmE, also called MnmE and previously designated ThdF ... |
29-145 | 1.70e-15 | |||||||
tRNA modification GTPase TrmE; TrmE, also called MnmE and previously designated ThdF (thiophene and furan oxidation protein), is a GTPase involved in tRNA modification to create 5-methylaminomethyl-2-thiouridine in the wobble position of some tRNAs. This protein and GidA form an alpha2/beta2 heterotetramer. [Protein synthesis, tRNA and rRNA base modification] Pssm-ID: 273083 [Multi-domain] Cd Length: 442 Bit Score: 78.30 E-value: 1.70e-15
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| MnmE_helical | pfam12631 | MnmE helical domain; The tRNA modification GTPase MnmE consists of three domains. An ... |
29-180 | 5.05e-15 | |||||||
MnmE helical domain; The tRNA modification GTPase MnmE consists of three domains. An N-terminal domain, a helical domain and a GTPase domain which is nested within the helical domain. This family represents the helical domain. Pssm-ID: 463649 [Multi-domain] Cd Length: 326 Bit Score: 75.98 E-value: 5.05e-15
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| YihA_EngB | cd01876 | YihA (EngB) GTPase family; The YihA (EngB) subfamily of GTPases is typified by the E. coli ... |
202-372 | 1.49e-14 | |||||||
YihA (EngB) GTPase family; The YihA (EngB) subfamily of GTPases is typified by the E. coli YihA, an essential protein involved in cell division control. YihA and its orthologs are small proteins that typically contain less than 200 amino acid residues and consists of the GTPase domain only (some of the eukaryotic homologs contain an N-terminal extension of about 120 residues that might be involved in organellar targeting). Homologs of yihA are found in most Gram-positive and Gram-negative pathogenic bacteria, with the exception of Mycobacterium tuberculosis. The broad-spectrum nature of YihA and its essentiality for cell viability in bacteria make it an attractive antibacterial target. Pssm-ID: 206665 [Multi-domain] Cd Length: 170 Bit Score: 71.39 E-value: 1.49e-14
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| small_GTP | TIGR00231 | small GTP-binding protein domain; Proteins with a small GTP-binding domain recognized by this ... |
27-184 | 2.53e-14 | |||||||
small GTP-binding protein domain; Proteins with a small GTP-binding domain recognized by this model include Ras, RhoA, Rab11, translation elongation factor G, translation initiation factor IF-2, tetratcycline resistance protein TetM, CDC42, Era, ADP-ribosylation factors, tdhF, and many others. In some proteins the domain occurs more than once.This model recognizes a large number of small GTP-binding proteins and related domains in larger proteins. Note that the alpha chains of heterotrimeric G proteins are larger proteins in which the NKXD motif is separated from the GxxxxGK[ST] motif (P-loop) by a long insert and are not easily detected by this model. [Unknown function, General] Pssm-ID: 272973 [Multi-domain] Cd Length: 162 Bit Score: 70.48 E-value: 2.53e-14
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| era | TIGR00436 | GTP-binding protein Era; Era is an essential GTPase in Escherichia coli and many other ... |
29-188 | 3.32e-14 | |||||||
GTP-binding protein Era; Era is an essential GTPase in Escherichia coli and many other bacteria. It plays a role in ribosome biogenesis. Few bacteria lack this protein. [Protein synthesis, Other] Pssm-ID: 129528 [Multi-domain] Cd Length: 270 Bit Score: 72.42 E-value: 3.32e-14
|
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| Gem1 | COG1100 | GTPase SAR1 family domain [General function prediction only]; |
200-371 | 7.14e-13 | |||||||
GTPase SAR1 family domain [General function prediction only]; Pssm-ID: 440717 [Multi-domain] Cd Length: 177 Bit Score: 66.54 E-value: 7.14e-13
|
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| era | TIGR00436 | GTP-binding protein Era; Era is an essential GTPase in Escherichia coli and many other ... |
201-369 | 7.58e-13 | |||||||
GTP-binding protein Era; Era is an essential GTPase in Escherichia coli and many other bacteria. It plays a role in ribosome biogenesis. Few bacteria lack this protein. [Protein synthesis, Other] Pssm-ID: 129528 [Multi-domain] Cd Length: 270 Bit Score: 68.57 E-value: 7.58e-13
|
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| RbgA | COG1161 | Ribosome biogenesis GTPase RbgA [Translation, ribosomal structure and biogenesis]; |
92-290 | 1.26e-12 | |||||||
Ribosome biogenesis GTPase RbgA [Translation, ribosomal structure and biogenesis]; Pssm-ID: 440775 [Multi-domain] Cd Length: 279 Bit Score: 67.83 E-value: 1.26e-12
|
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| FeoB | cd01879 | Ferrous iron transport protein B (FeoB) family; Ferrous iron transport protein B (FeoB) ... |
203-371 | 4.22e-12 | |||||||
Ferrous iron transport protein B (FeoB) family; Ferrous iron transport protein B (FeoB) subfamily. E. coli has an iron(II) transport system, known as feo, which may make an important contribution to the iron supply of the cell under anaerobic conditions. FeoB has been identified as part of this transport system. FeoB is a large 700-800 amino acid integral membrane protein. The N terminus contains a P-loop motif suggesting that iron transport may be ATP dependent. Pssm-ID: 206667 [Multi-domain] Cd Length: 159 Bit Score: 64.01 E-value: 4.22e-12
|
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| YlqF | cd01856 | Circularly permuted YlqF GTPase; Proteins of the YlqF family contain all sequence motifs ... |
29-62 | 1.23e-11 | |||||||
Circularly permuted YlqF GTPase; Proteins of the YlqF family contain all sequence motifs typical of the vast class of P-loop-containing GTPases, but show a circular permutation, with a G4-G1-G3 pattern of motifs as opposed to the regular G1-G3-G4 pattern seen in most GTPases. The YlqF subfamily is represented in all eukaryotes as well as a phylogenetically diverse array of bacteria (including gram-positive bacteria, proteobacteria, Synechocystis, Borrelia, and Thermotoga). Pssm-ID: 206749 [Multi-domain] Cd Length: 171 Bit Score: 62.93 E-value: 1.23e-11
|
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| FeoB_N | pfam02421 | Ferrous iron transport protein B; Escherichia coli has an iron(II) transport system (feo) ... |
200-364 | 3.67e-11 | |||||||
Ferrous iron transport protein B; Escherichia coli has an iron(II) transport system (feo) which may make an important contribution to the iron supply of the cell under anaerobic conditions. FeoB has been identified as part of this transport system. FeoB is a large 700-800 amino acid integral membrane protein. The N terminus contains a P-loop motif suggesting that iron transport may be ATP dependent. Pssm-ID: 460552 [Multi-domain] Cd Length: 156 Bit Score: 61.31 E-value: 3.67e-11
|
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| GTPase_YlqF | TIGR03596 | ribosome biogenesis GTP-binding protein YlqF; Members of this protein family are GTP-binding ... |
92-221 | 5.44e-11 | |||||||
ribosome biogenesis GTP-binding protein YlqF; Members of this protein family are GTP-binding proteins involved in ribosome biogenesis, including the essential YlqF protein of Bacillus subtilis, which is an essential protein. They are related to Era, EngA, and other GTPases of ribosome biogenesis, but are circularly permuted. This family is not universal, and is not present in Escherichia coli, and so is not as well studied as some other GTPases. This model is built for bacterial members. [Protein synthesis, Other] Pssm-ID: 274669 [Multi-domain] Cd Length: 276 Bit Score: 62.91 E-value: 5.44e-11
|
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| HflX | cd01878 | HflX GTPase family; HflX subfamily. A distinct conserved domain with a glycine-rich segment ... |
201-369 | 6.32e-11 | |||||||
HflX GTPase family; HflX subfamily. A distinct conserved domain with a glycine-rich segment N-terminal of the GTPase domain characterizes the HflX subfamily. The E. coli HflX has been implicated in the control of the lambda cII repressor proteolysis, but the actual biological functions of these GTPases remain unclear. HflX is widespread, but not universally represented in all three superkingdoms. Pssm-ID: 206666 [Multi-domain] Cd Length: 204 Bit Score: 61.71 E-value: 6.32e-11
|
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| FeoB | COG0370 | Fe2+ transporter FeoB [Inorganic ion transport and metabolism]; |
199-371 | 1.37e-10 | |||||||
Fe2+ transporter FeoB [Inorganic ion transport and metabolism]; Pssm-ID: 440139 [Multi-domain] Cd Length: 662 Bit Score: 63.60 E-value: 1.37e-10
|
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| RbgA | COG1161 | Ribosome biogenesis GTPase RbgA [Translation, ribosomal structure and biogenesis]; |
29-63 | 2.30e-10 | |||||||
Ribosome biogenesis GTPase RbgA [Translation, ribosomal structure and biogenesis]; Pssm-ID: 440775 [Multi-domain] Cd Length: 279 Bit Score: 61.28 E-value: 2.30e-10
|
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| DLP_2 | cd09912 | Dynamin-like protein including dynamins, mitofusins, and guanylate-binding proteins; The ... |
201-353 | 5.14e-10 | |||||||
Dynamin-like protein including dynamins, mitofusins, and guanylate-binding proteins; The dynamin family of large mechanochemical GTPases includes the classical dynamins and dynamin-like proteins (DLPs) that are found throughout the Eukarya. This family also includes bacterial DLPs. These proteins catalyze membrane fission during clathrin-mediated endocytosis. Dynamin consists of five domains; an N-terminal G domain that binds and hydrolyzes GTP, a middle domain (MD) involved in self-assembly and oligomerization, a pleckstrin homology (PH) domain responsible for interactions with the plasma membrane, GED, which is also involved in self-assembly, and a proline arginine rich domain (PRD) that interacts with SH3 domains on accessory proteins. To date, three vertebrate dynamin genes have been identified; dynamin 1, which is brain specific, mediates uptake of synaptic vesicles in presynaptic terminals; dynamin-2 is expressed ubiquitously and similarly participates in membrane fission; mutations in the MD, PH and GED domains of dynamin 2 have been linked to human diseases such as Charcot-Marie-Tooth peripheral neuropathy and rare forms of centronuclear myopathy. Dynamin 3 participates in megakaryocyte progenitor amplification, and is also involved in cytoplasmic enlargement and the formation of the demarcation membrane system. This family also includes mitofusins (MFN1 and MFN2 in mammals) that are involved in mitochondrial fusion. Dynamin oligomerizes into helical structures around the neck of budding vesicles in a GTP hydrolysis-dependent manner. Pssm-ID: 206739 [Multi-domain] Cd Length: 180 Bit Score: 58.33 E-value: 5.14e-10
|
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| Gem1 | COG1100 | GTPase SAR1 family domain [General function prediction only]; |
29-192 | 1.29e-09 | |||||||
GTPase SAR1 family domain [General function prediction only]; Pssm-ID: 440717 [Multi-domain] Cd Length: 177 Bit Score: 57.30 E-value: 1.29e-09
|
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| FeoB_N | pfam02421 | Ferrous iron transport protein B; Escherichia coli has an iron(II) transport system (feo) ... |
28-180 | 3.69e-09 | |||||||
Ferrous iron transport protein B; Escherichia coli has an iron(II) transport system (feo) which may make an important contribution to the iron supply of the cell under anaerobic conditions. FeoB has been identified as part of this transport system. FeoB is a large 700-800 amino acid integral membrane protein. The N terminus contains a P-loop motif suggesting that iron transport may be ATP dependent. Pssm-ID: 460552 [Multi-domain] Cd Length: 156 Bit Score: 55.53 E-value: 3.69e-09
|
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| DRG | cd01896 | Developmentally Regulated GTP-binding protein (DRG); The developmentally regulated GTP-binding ... |
201-300 | 4.26e-09 | |||||||
Developmentally Regulated GTP-binding protein (DRG); The developmentally regulated GTP-binding protein (DRG) subfamily is an uncharacterized member of the Obg family, an evolutionary branch of GTPase superfamily proteins. GTPases act as molecular switches regulating diverse cellular processes. DRG2 and DRG1 comprise the DRG subfamily in eukaryotes. In view of their widespread expression in various tissues and high conservation among distantly related species in eukaryotes and archaea, DRG proteins may regulate fundamental cellular processes. It is proposed that the DRG subfamily proteins play their physiological roles through RNA binding. Pssm-ID: 206683 [Multi-domain] Cd Length: 233 Bit Score: 56.79 E-value: 4.26e-09
|
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| GTPase_YlqF | TIGR03596 | ribosome biogenesis GTP-binding protein YlqF; Members of this protein family are GTP-binding ... |
29-62 | 5.45e-09 | |||||||
ribosome biogenesis GTP-binding protein YlqF; Members of this protein family are GTP-binding proteins involved in ribosome biogenesis, including the essential YlqF protein of Bacillus subtilis, which is an essential protein. They are related to Era, EngA, and other GTPases of ribosome biogenesis, but are circularly permuted. This family is not universal, and is not present in Escherichia coli, and so is not as well studied as some other GTPases. This model is built for bacterial members. [Protein synthesis, Other] Pssm-ID: 274669 [Multi-domain] Cd Length: 276 Bit Score: 57.13 E-value: 5.45e-09
|
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| GTP_translation_factor | cd00881 | GTP translation factor family primarily contains translation initiation, elongation and ... |
29-187 | 9.96e-09 | |||||||
GTP translation factor family primarily contains translation initiation, elongation and release factors; The GTP translation factor family consists primarily of translation initiation, elongation, and release factors, which play specific roles in protein translation. In addition, the family includes Snu114p, a component of the U5 small nuclear riboprotein particle which is a component of the spliceosome and is involved in excision of introns, TetM, a tetracycline resistance gene that protects the ribosome from tetracycline binding, and the unusual subfamily CysN/ATPS, which has an unrelated function (ATP sulfurylase) acquired through lateral transfer of the EF1-alpha gene and development of a new function. Pssm-ID: 206647 [Multi-domain] Cd Length: 183 Bit Score: 54.61 E-value: 9.96e-09
|
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| HflX | COG2262 | 50S ribosomal subunit-associated GTPase HflX [Translation, ribosomal structure and biogenesis]; ... |
201-376 | 1.16e-08 | |||||||
50S ribosomal subunit-associated GTPase HflX [Translation, ribosomal structure and biogenesis]; Pssm-ID: 441863 [Multi-domain] Cd Length: 419 Bit Score: 57.02 E-value: 1.16e-08
|
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| Obg_like | cd01881 | Obg-like family of GTPases consist of five subfamilies: Obg, DRG, YyaF/YchF, Ygr210, and NOG1; ... |
203-335 | 1.37e-08 | |||||||
Obg-like family of GTPases consist of five subfamilies: Obg, DRG, YyaF/YchF, Ygr210, and NOG1; The Obg-like subfamily consists of five well-delimited, ancient subfamilies, namely Obg, DRG, YyaF/YchF, Ygr210, and NOG1. Four of these groups (Obg, DRG, YyaF/YchF, and Ygr210) are characterized by a distinct glycine-rich motif immediately following the Walker B motif (G3 box). Obg/CgtA is an essential gene that is involved in the initiation of sporulation and DNA replication in the bacteria Caulobacter and Bacillus, but its exact molecular role is unknown. Furthermore, several OBG family members possess a C-terminal RNA-binding domain, the TGS domain, which is also present in threonyl-tRNA synthetase and in bacterial guanosine polyphosphatase SpoT. Nog1 is a nucleolar protein that might function in ribosome assembly. The DRG and Nog1 subfamilies are ubiquitous in archaea and eukaryotes, the Ygr210 subfamily is present in archaea and fungi, and the Obg and YyaF/YchF subfamilies are ubiquitous in bacteria and eukaryotes. The Obg/Nog1 and DRG subfamilies appear to form one major branch of the Obg family and the Ygr210 and YchF subfamilies form another branch. No GEFs, GAPs, or GDIs for Obg have been identified. Pssm-ID: 206668 [Multi-domain] Cd Length: 167 Bit Score: 53.94 E-value: 1.37e-08
|
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| FeoB | cd01879 | Ferrous iron transport protein B (FeoB) family; Ferrous iron transport protein B (FeoB) ... |
30-187 | 1.74e-08 | |||||||
Ferrous iron transport protein B (FeoB) family; Ferrous iron transport protein B (FeoB) subfamily. E. coli has an iron(II) transport system, known as feo, which may make an important contribution to the iron supply of the cell under anaerobic conditions. FeoB has been identified as part of this transport system. FeoB is a large 700-800 amino acid integral membrane protein. The N terminus contains a P-loop motif suggesting that iron transport may be ATP dependent. Pssm-ID: 206667 [Multi-domain] Cd Length: 159 Bit Score: 53.61 E-value: 1.74e-08
|
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| Rbg1 | COG1163 | Ribosome-interacting GTPase RBG1 [Translation, ribosomal structure and biogenesis]; |
202-310 | 1.83e-08 | |||||||
Ribosome-interacting GTPase RBG1 [Translation, ribosomal structure and biogenesis]; Pssm-ID: 440777 [Multi-domain] Cd Length: 368 Bit Score: 55.96 E-value: 1.83e-08
|
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| Nog1 | COG1084 | GTP-binding protein, GTP1/Obg family [General function prediction only]; |
27-188 | 2.02e-08 | |||||||
GTP-binding protein, GTP1/Obg family [General function prediction only]; Pssm-ID: 440701 [Multi-domain] Cd Length: 330 Bit Score: 55.61 E-value: 2.02e-08
|
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| YihA_EngB | cd01876 | YihA (EngB) GTPase family; The YihA (EngB) subfamily of GTPases is typified by the E. coli ... |
29-180 | 2.49e-08 | |||||||
YihA (EngB) GTPase family; The YihA (EngB) subfamily of GTPases is typified by the E. coli YihA, an essential protein involved in cell division control. YihA and its orthologs are small proteins that typically contain less than 200 amino acid residues and consists of the GTPase domain only (some of the eukaryotic homologs contain an N-terminal extension of about 120 residues that might be involved in organellar targeting). Homologs of yihA are found in most Gram-positive and Gram-negative pathogenic bacteria, with the exception of Mycobacterium tuberculosis. The broad-spectrum nature of YihA and its essentiality for cell viability in bacteria make it an attractive antibacterial target. Pssm-ID: 206665 [Multi-domain] Cd Length: 170 Bit Score: 53.28 E-value: 2.49e-08
|
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| MJ1464 | cd01859 | An uncharacterized, circularly permuted subfamily of the Ras GTPases; This family represents ... |
104-256 | 3.21e-08 | |||||||
An uncharacterized, circularly permuted subfamily of the Ras GTPases; This family represents archaeal GTPase typified by the protein MJ1464 from Methanococcus jannaschii. The members of this family show a circular permutation of the GTPase signature motifs so that C-terminal strands 5, 6, and 7 (strands 6 contain the NKxD motif) are relocated to the N terminus. Pssm-ID: 206752 [Multi-domain] Cd Length: 157 Bit Score: 52.71 E-value: 3.21e-08
|
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| YeeP | COG3596 | Predicted GTPase [General function prediction only]; |
175-370 | 3.62e-08 | |||||||
Predicted GTPase [General function prediction only]; Pssm-ID: 442815 [Multi-domain] Cd Length: 318 Bit Score: 54.77 E-value: 3.62e-08
|
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| GTP_EFTU | pfam00009 | Elongation factor Tu GTP binding domain; This domain contains a P-loop motif, also found in ... |
200-371 | 4.41e-08 | |||||||
Elongation factor Tu GTP binding domain; This domain contains a P-loop motif, also found in several other families such as pfam00071, pfam00025 and pfam00063. Elongation factor Tu consists of three structural domains, this plus two C-terminal beta barrel domains. Pssm-ID: 425418 [Multi-domain] Cd Length: 187 Bit Score: 52.91 E-value: 4.41e-08
|
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| YlqF | cd01856 | Circularly permuted YlqF GTPase; Proteins of the YlqF family contain all sequence motifs ... |
88-234 | 1.92e-07 | |||||||
Circularly permuted YlqF GTPase; Proteins of the YlqF family contain all sequence motifs typical of the vast class of P-loop-containing GTPases, but show a circular permutation, with a G4-G1-G3 pattern of motifs as opposed to the regular G1-G3-G4 pattern seen in most GTPases. The YlqF subfamily is represented in all eukaryotes as well as a phylogenetically diverse array of bacteria (including gram-positive bacteria, proteobacteria, Synechocystis, Borrelia, and Thermotoga). Pssm-ID: 206749 [Multi-domain] Cd Length: 171 Bit Score: 50.60 E-value: 1.92e-07
|
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| GTPase_YsxC | TIGR03598 | ribosome biogenesis GTP-binding protein YsxC/EngB; Members of this protein family are a GTPase ... |
202-355 | 2.20e-07 | |||||||
ribosome biogenesis GTP-binding protein YsxC/EngB; Members of this protein family are a GTPase associated with ribosome biogenesis, typified by YsxC from Bacillus subutilis. The family is widely but not universally distributed among bacteria. Members commonly are called EngB based on homology to EngA, one of several other GTPases of ribosome biogenesis. Cutoffs as set find essentially all bacterial members, but also identify large numbers of eukaryotic (probably organellar) sequences. This protein is found in about 80 percent of bacterial genomes. [Protein synthesis, Other] Pssm-ID: 274670 [Multi-domain] Cd Length: 179 Bit Score: 50.94 E-value: 2.20e-07
|
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| FeoB | COG0370 | Fe2+ transporter FeoB [Inorganic ion transport and metabolism]; |
25-186 | 2.84e-07 | |||||||
Fe2+ transporter FeoB [Inorganic ion transport and metabolism]; Pssm-ID: 440139 [Multi-domain] Cd Length: 662 Bit Score: 52.81 E-value: 2.84e-07
|
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| Obg | cd01898 | Obg GTPase; The Obg nucleotide binding protein subfamily has been implicated in stress ... |
202-369 | 4.10e-07 | |||||||
Obg GTPase; The Obg nucleotide binding protein subfamily has been implicated in stress response, chromosome partitioning, replication initiation, mycelium development, and sporulation. Obg proteins are among a large group of GTP binding proteins conserved from bacteria to humans. The E. coli homolog, ObgE is believed to function in ribosomal biogenesis. Members of the subfamily contain two equally and highly conserved domains, a C-terminal GTP binding domain and an N-terminal glycine-rich domain. Pssm-ID: 206685 [Multi-domain] Cd Length: 170 Bit Score: 49.73 E-value: 4.10e-07
|
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| YlqF_related_GTPase | cd01849 | Circularly permuted YlqF-related GTPases; These proteins are found in bacteria, eukaryotes, ... |
29-84 | 4.60e-07 | |||||||
Circularly permuted YlqF-related GTPases; These proteins are found in bacteria, eukaryotes, and archaea. They all exhibit a circular permutation of the GTPase signature motifs so that the order of the conserved G box motifs is G4-G5-G1-G2-G3, with G4 and G5 being permuted from the C-terminal region of proteins in the Ras superfamily to the N-terminus of YlqF-related GTPases. Pssm-ID: 206746 [Multi-domain] Cd Length: 146 Bit Score: 49.31 E-value: 4.60e-07
|
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| YqeH | cd01855 | Circularly permuted YqeH GTPase; YqeH is an essential GTP-binding protein. Depletion of YqeH ... |
131-257 | 1.20e-06 | |||||||
Circularly permuted YqeH GTPase; YqeH is an essential GTP-binding protein. Depletion of YqeH induces an excess initiation of DNA replication, suggesting that it negatively controls initiation of chromosome replication. The YqeH subfamily is common in eukaryotes and sporadically present in bacteria with probable acquisition by plants from chloroplasts. Proteins of the YqeH family contain all sequence motifs typical of the vast class of P-loop-containing GTPases, but show a circular permutation, with a G4-G1-G3 pattern of motifs as opposed to the regular G1-G3-G4 pattern seen in most GTPases. Pssm-ID: 206748 [Multi-domain] Cd Length: 191 Bit Score: 48.80 E-value: 1.20e-06
|
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| HflX | cd01878 | HflX GTPase family; HflX subfamily. A distinct conserved domain with a glycine-rich segment ... |
27-186 | 1.52e-06 | |||||||
HflX GTPase family; HflX subfamily. A distinct conserved domain with a glycine-rich segment N-terminal of the GTPase domain characterizes the HflX subfamily. The E. coli HflX has been implicated in the control of the lambda cII repressor proteolysis, but the actual biological functions of these GTPases remain unclear. HflX is widespread, but not universally represented in all three superkingdoms. Pssm-ID: 206666 [Multi-domain] Cd Length: 204 Bit Score: 48.61 E-value: 1.52e-06
|
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| GTP_EFTU | pfam00009 | Elongation factor Tu GTP binding domain; This domain contains a P-loop motif, also found in ... |
29-187 | 1.53e-06 | |||||||
Elongation factor Tu GTP binding domain; This domain contains a P-loop motif, also found in several other families such as pfam00071, pfam00025 and pfam00063. Elongation factor Tu consists of three structural domains, this plus two C-terminal beta barrel domains. Pssm-ID: 425418 [Multi-domain] Cd Length: 187 Bit Score: 48.29 E-value: 1.53e-06
|
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| feoB | TIGR00437 | ferrous iron transporter FeoB; FeoB (773 amino acids in E. coli), a cytoplasmic membrane ... |
33-236 | 2.06e-06 | |||||||
ferrous iron transporter FeoB; FeoB (773 amino acids in E. coli), a cytoplasmic membrane protein required for iron(II) update, is encoded in an operon with FeoA (75 amino acids), which is also required, and is regulated by Fur. There appear to be two copies in Archaeoglobus fulgidus and Clostridium acetobutylicum. [Transport and binding proteins, Cations and iron carrying compounds] Pssm-ID: 273077 [Multi-domain] Cd Length: 591 Bit Score: 50.12 E-value: 2.06e-06
|
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| Rbg1 | COG1163 | Ribosome-interacting GTPase RBG1 [Translation, ribosomal structure and biogenesis]; |
23-115 | 4.27e-06 | |||||||
Ribosome-interacting GTPase RBG1 [Translation, ribosomal structure and biogenesis]; Pssm-ID: 440777 [Multi-domain] Cd Length: 368 Bit Score: 48.64 E-value: 4.27e-06
|
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| Rab | cd00154 | Ras-related in brain (Rab) family of small guanosine triphosphatases (GTPases); Rab GTPases ... |
201-355 | 8.05e-06 | |||||||
Ras-related in brain (Rab) family of small guanosine triphosphatases (GTPases); Rab GTPases form the largest family within the Ras superfamily. There are at least 60 Rab genes in the human genome, and a number of Rab GTPases are conserved from yeast to humans. Rab GTPases are small, monomeric proteins that function as molecular switches to regulate vesicle trafficking pathways. The different Rab GTPases are localized to the cytosolic face of specific intracellular membranes, where they regulate distinct steps in membrane traffic pathways. In the GTP-bound form, Rab GTPases recruit specific sets of effector proteins onto membranes. Through their effectors, Rab GTPases regulate vesicle formation, actin- and tubulin-dependent vesicle movement, and membrane fusion. GTPase activating proteins (GAPs) interact with GTP-bound Rab and accelerate the hydrolysis of GTP to GDP. Guanine nucleotide exchange factors (GEFs) interact with GDP-bound Rabs to promote the formation of the GTP-bound state. Rabs are further regulated by guanine nucleotide dissociation inhibitors (GDIs), which mask C-terminal lipid binding and promote cytosolic localization. While most unicellular organisms possess 5-20 Rab members, several have been found to possess 60 or more Rabs; for many of these Rab isoforms, homologous proteins are not found in other organisms. Most Rab GTPases contain a lipid modification site at the C-terminus, with sequence motifs CC, CXC, or CCX. Lipid binding is essential for membrane attachment, a key feature of most Rab proteins. Since crystal structures often lack C-terminal residues, the lipid modification site is not available for annotation in many of the CDs in the hierarchy, but is included where possible. Pssm-ID: 206640 [Multi-domain] Cd Length: 159 Bit Score: 45.91 E-value: 8.05e-06
|
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| EngB | COG0218 | GTP-binding protein EngB required for normal cell division [Cell cycle control, cell division, ... |
202-372 | 1.25e-05 | |||||||
GTP-binding protein EngB required for normal cell division [Cell cycle control, cell division, chromosome partitioning]; Pssm-ID: 439988 [Multi-domain] Cd Length: 194 Bit Score: 45.83 E-value: 1.25e-05
|
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| Obg_like | cd01881 | Obg-like family of GTPases consist of five subfamilies: Obg, DRG, YyaF/YchF, Ygr210, and NOG1; ... |
30-186 | 1.68e-05 | |||||||
Obg-like family of GTPases consist of five subfamilies: Obg, DRG, YyaF/YchF, Ygr210, and NOG1; The Obg-like subfamily consists of five well-delimited, ancient subfamilies, namely Obg, DRG, YyaF/YchF, Ygr210, and NOG1. Four of these groups (Obg, DRG, YyaF/YchF, and Ygr210) are characterized by a distinct glycine-rich motif immediately following the Walker B motif (G3 box). Obg/CgtA is an essential gene that is involved in the initiation of sporulation and DNA replication in the bacteria Caulobacter and Bacillus, but its exact molecular role is unknown. Furthermore, several OBG family members possess a C-terminal RNA-binding domain, the TGS domain, which is also present in threonyl-tRNA synthetase and in bacterial guanosine polyphosphatase SpoT. Nog1 is a nucleolar protein that might function in ribosome assembly. The DRG and Nog1 subfamilies are ubiquitous in archaea and eukaryotes, the Ygr210 subfamily is present in archaea and fungi, and the Obg and YyaF/YchF subfamilies are ubiquitous in bacteria and eukaryotes. The Obg/Nog1 and DRG subfamilies appear to form one major branch of the Obg family and the Ygr210 and YchF subfamilies form another branch. No GEFs, GAPs, or GDIs for Obg have been identified. Pssm-ID: 206668 [Multi-domain] Cd Length: 167 Bit Score: 45.08 E-value: 1.68e-05
|
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| Nucleostemin_like | cd04178 | A circularly permuted subfamily of the Ras GTPases; Nucleostemin (NS) is a nucleolar protein ... |
28-62 | 1.93e-05 | |||||||
A circularly permuted subfamily of the Ras GTPases; Nucleostemin (NS) is a nucleolar protein that functions as a regulator of cell growth and proliferation in stem cells and in several types of cancer cells, but is not expressed in the differentiated cells of most mammalian adult tissues. NS shuttles between the nucleolus and nucleoplasm bidirectionally at a rate that is fast and independent of cell type. Lowering GTP levels decreases the nucleolar retention of NS, and expression of NS is abruptly down-regulated during differentiation prior to terminal cell division. Found only in eukaryotes, NS consists of an N-terminal basic domain, a coiled-coil domain, a GTP-binding domain, an intermediate domain, and a C-terminal acidic domain. Experimental evidence indicates that NS uses its GTP-binding property as a molecular switch to control the transition between the nucleolus and nucleoplasm, and this process involves interaction between the basic, GTP-binding, and intermediate domains of the protein. Pssm-ID: 206753 [Multi-domain] Cd Length: 171 Bit Score: 44.87 E-value: 1.93e-05
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| Ras | pfam00071 | Ras family; Includes sub-families Ras, Rab, Rac, Ral, Ran, Rap Ypt1 and more. Shares P-loop ... |
201-360 | 4.35e-05 | |||||||
Ras family; Includes sub-families Ras, Rab, Rac, Ral, Ran, Rap Ypt1 and more. Shares P-loop motif with GTP_EFTU, arf and myosin_head. See pfam00009 pfam00025, pfam00063. As regards Rab GTPases, these are important regulators of vesicle formation, motility and fusion. They share a fold in common with all Ras GTPases: this is a six-stranded beta-sheet surrounded by five alpha-helices. Pssm-ID: 425451 [Multi-domain] Cd Length: 162 Bit Score: 43.66 E-value: 4.35e-05
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| NOG | cd01897 | Nucleolar GTP-binding protein (NOG); NOG1 is a nucleolar GTP-binding protein present in ... |
200-361 | 6.25e-05 | |||||||
Nucleolar GTP-binding protein (NOG); NOG1 is a nucleolar GTP-binding protein present in eukaryotes ranging from trypanosomes to humans. NOG1 is functionally linked to ribosome biogenesis and found in association with the nuclear pore complexes and identified in many preribosomal complexes. Thus, defects in NOG1 can lead to defects in 60S biogenesis. The S. cerevisiae NOG1 gene is essential for cell viability, and mutations in the predicted G motifs abrogate function. It is a member of the ODN family of GTP-binding proteins that also includes the bacterial Obg and DRG proteins. Pssm-ID: 206684 [Multi-domain] Cd Length: 167 Bit Score: 43.32 E-value: 6.25e-05
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| obgE | PRK12297 | GTPase CgtA; Reviewed |
202-371 | 7.71e-05 | |||||||
GTPase CgtA; Reviewed Pssm-ID: 237046 [Multi-domain] Cd Length: 424 Bit Score: 44.71 E-value: 7.71e-05
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| CysN_ATPS | cd04166 | CysN, together with protein CysD, forms the ATP sulfurylase (ATPS) complex; CysN_ATPS ... |
201-327 | 8.24e-05 | |||||||
CysN, together with protein CysD, forms the ATP sulfurylase (ATPS) complex; CysN_ATPS subfamily. CysN, together with protein CysD, form the ATP sulfurylase (ATPS) complex in some bacteria and lower eukaryotes. ATPS catalyzes the production of ATP sulfurylase (APS) and pyrophosphate (PPi) from ATP and sulfate. CysD, which catalyzes ATP hydrolysis, is a member of the ATP pyrophosphatase (ATP PPase) family. CysN hydrolysis of GTP is required for CysD hydrolysis of ATP; however, CysN hydrolysis of GTP is not dependent on CysD hydrolysis of ATP. CysN is an example of lateral gene transfer followed by acquisition of new function. In many organisms, an ATPS exists which is not GTP-dependent and shares no sequence or structural similarity to CysN. Pssm-ID: 206729 [Multi-domain] Cd Length: 209 Bit Score: 43.71 E-value: 8.24e-05
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| YqeH | cd01855 | Circularly permuted YqeH GTPase; YqeH is an essential GTP-binding protein. Depletion of YqeH ... |
31-63 | 1.09e-04 | |||||||
Circularly permuted YqeH GTPase; YqeH is an essential GTP-binding protein. Depletion of YqeH induces an excess initiation of DNA replication, suggesting that it negatively controls initiation of chromosome replication. The YqeH subfamily is common in eukaryotes and sporadically present in bacteria with probable acquisition by plants from chloroplasts. Proteins of the YqeH family contain all sequence motifs typical of the vast class of P-loop-containing GTPases, but show a circular permutation, with a G4-G1-G3 pattern of motifs as opposed to the regular G1-G3-G4 pattern seen in most GTPases. Pssm-ID: 206748 [Multi-domain] Cd Length: 191 Bit Score: 43.02 E-value: 1.09e-04
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| infB | CHL00189 | translation initiation factor 2; Provisional |
26-183 | 1.29e-04 | |||||||
translation initiation factor 2; Provisional Pssm-ID: 177089 [Multi-domain] Cd Length: 742 Bit Score: 44.44 E-value: 1.29e-04
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| YeeP | COG3596 | Predicted GTPase [General function prediction only]; |
19-145 | 1.53e-04 | |||||||
Predicted GTPase [General function prediction only]; Pssm-ID: 442815 [Multi-domain] Cd Length: 318 Bit Score: 43.60 E-value: 1.53e-04
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| EngB | COG0218 | GTP-binding protein EngB required for normal cell division [Cell cycle control, cell division, ... |
27-50 | 1.55e-04 | |||||||
GTP-binding protein EngB required for normal cell division [Cell cycle control, cell division, chromosome partitioning]; Pssm-ID: 439988 [Multi-domain] Cd Length: 194 Bit Score: 42.75 E-value: 1.55e-04
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| MJ1464 | cd01859 | An uncharacterized, circularly permuted subfamily of the Ras GTPases; This family represents ... |
19-62 | 1.76e-04 | |||||||
An uncharacterized, circularly permuted subfamily of the Ras GTPases; This family represents archaeal GTPase typified by the protein MJ1464 from Methanococcus jannaschii. The members of this family show a circular permutation of the GTPase signature motifs so that C-terminal strands 5, 6, and 7 (strands 6 contain the NKxD motif) are relocated to the N terminus. Pssm-ID: 206752 [Multi-domain] Cd Length: 157 Bit Score: 41.92 E-value: 1.76e-04
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| PRK05506 | PRK05506 | bifunctional sulfate adenylyltransferase subunit 1/adenylylsulfate kinase protein; Provisional |
211-327 | 1.78e-04 | |||||||
bifunctional sulfate adenylyltransferase subunit 1/adenylylsulfate kinase protein; Provisional Pssm-ID: 180120 [Multi-domain] Cd Length: 632 Bit Score: 44.15 E-value: 1.78e-04
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| NOG | cd01897 | Nucleolar GTP-binding protein (NOG); NOG1 is a nucleolar GTP-binding protein present in ... |
27-180 | 1.83e-04 | |||||||
Nucleolar GTP-binding protein (NOG); NOG1 is a nucleolar GTP-binding protein present in eukaryotes ranging from trypanosomes to humans. NOG1 is functionally linked to ribosome biogenesis and found in association with the nuclear pore complexes and identified in many preribosomal complexes. Thus, defects in NOG1 can lead to defects in 60S biogenesis. The S. cerevisiae NOG1 gene is essential for cell viability, and mutations in the predicted G motifs abrogate function. It is a member of the ODN family of GTP-binding proteins that also includes the bacterial Obg and DRG proteins. Pssm-ID: 206684 [Multi-domain] Cd Length: 167 Bit Score: 42.16 E-value: 1.83e-04
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| PRK04213 | PRK04213 | GTP-binding protein EngB; |
27-77 | 2.47e-04 | |||||||
GTP-binding protein EngB; Pssm-ID: 179790 [Multi-domain] Cd Length: 201 Bit Score: 42.21 E-value: 2.47e-04
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| HSR1_MMR1 | cd01857 | A circularly permuted subfamily of the Ras GTPases; Human HSR1 is localized to the human MHC ... |
202-234 | 2.85e-04 | |||||||
A circularly permuted subfamily of the Ras GTPases; Human HSR1 is localized to the human MHC class I region and is highly homologous to a putative GTP-binding protein, MMR1 from mouse. These proteins represent a new subfamily of GTP-binding proteins that has only eukaryote members. This subfamily shows a circular permutation of the GTPase signature motifs so that the C-terminal strands 5, 6, and 7 (strand 6 contains the G4 box with sequence NKXD) are relocated to the N-terminus. Pssm-ID: 206750 [Multi-domain] Cd Length: 140 Bit Score: 41.06 E-value: 2.85e-04
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| YfjP | cd11383 | YfjP GTPase; The Era (E. coli Ras-like protein)-like YfjP subfamily includes several ... |
203-369 | 3.84e-04 | |||||||
YfjP GTPase; The Era (E. coli Ras-like protein)-like YfjP subfamily includes several uncharacterized bacterial GTPases that are similar to Era. They generally show sequence conservation in the region between the Walker A and B motifs (G1 and G3 box motifs), to the exclusion of other GTPases. Era is characterized by a distinct derivative of the KH domain (the pseudo-KH domain) which is located C-terminal to the GTPase domain. Pssm-ID: 206743 [Multi-domain] Cd Length: 140 Bit Score: 40.40 E-value: 3.84e-04
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| HSR1_MMR1 | cd01857 | A circularly permuted subfamily of the Ras GTPases; Human HSR1 is localized to the human MHC ... |
25-62 | 5.06e-04 | |||||||
A circularly permuted subfamily of the Ras GTPases; Human HSR1 is localized to the human MHC class I region and is highly homologous to a putative GTP-binding protein, MMR1 from mouse. These proteins represent a new subfamily of GTP-binding proteins that has only eukaryote members. This subfamily shows a circular permutation of the GTPase signature motifs so that the C-terminal strands 5, 6, and 7 (strand 6 contains the G4 box with sequence NKXD) are relocated to the N-terminus. Pssm-ID: 206750 [Multi-domain] Cd Length: 140 Bit Score: 40.29 E-value: 5.06e-04
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| YlqF_related_GTPase | cd01849 | Circularly permuted YlqF-related GTPases; These proteins are found in bacteria, eukaryotes, ... |
107-239 | 1.00e-03 | |||||||
Circularly permuted YlqF-related GTPases; These proteins are found in bacteria, eukaryotes, and archaea. They all exhibit a circular permutation of the GTPase signature motifs so that the order of the conserved G box motifs is G4-G5-G1-G2-G3, with G4 and G5 being permuted from the C-terminal region of proteins in the Ras superfamily to the N-terminus of YlqF-related GTPases. Pssm-ID: 206746 [Multi-domain] Cd Length: 146 Bit Score: 39.29 E-value: 1.00e-03
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| IF2_eIF5B | cd01887 | Initiation Factor 2 (IF2)/ eukaryotic Initiation Factor 5B (eIF5B) family; IF2/eIF5B ... |
27-189 | 1.09e-03 | |||||||
Initiation Factor 2 (IF2)/ eukaryotic Initiation Factor 5B (eIF5B) family; IF2/eIF5B contribute to ribosomal subunit joining and function as GTPases that are maximally activated by the presence of both ribosomal subunits. As seen in other GTPases, IF2/IF5B undergoes conformational changes between its GTP- and GDP-bound states. Eukaryotic IF2/eIF5Bs possess three characteristic segments, including a divergent N-terminal region followed by conserved central and C-terminal segments. This core region is conserved among all known eukaryotic and archaeal IF2/eIF5Bs and eubacterial IF2s. Pssm-ID: 206674 [Multi-domain] Cd Length: 169 Bit Score: 39.76 E-value: 1.09e-03
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| RGK | cd04148 | Rem, Rem2, Rad, Gem/Kir (RGK) subfamily of Ras GTPases; RGK subfamily. The RGK (Rem, Rem2, Rad, ... |
201-361 | 1.18e-03 | |||||||
Rem, Rem2, Rad, Gem/Kir (RGK) subfamily of Ras GTPases; RGK subfamily. The RGK (Rem, Rem2, Rad, Gem/Kir) subfamily of Ras GTPases are expressed in a tissue-specific manner and are dynamically regulated by transcriptional and posttranscriptional mechanisms in response to environmental cues. RGK proteins bind to the beta subunit of L-type calcium channels, causing functional down-regulation of these voltage-dependent calcium channels, and either termination of calcium-dependent secretion or modulation of electrical conduction and contractile function. Inhibition of L-type calcium channels by Rem2 may provide a mechanism for modulating calcium-triggered exocytosis in hormone-secreting cells, and has been proposed to influence the secretion of insulin in pancreatic beta cells. RGK proteins also interact with and inhibit the Rho/Rho kinase pathway to modulate remodeling of the cytoskeleton. Two characteristics of RGK proteins cited in the literature are N-terminal and C-terminal extensions beyond the GTPase domain typical of Ras superfamily members. The N-terminal extension is not conserved among family members; the C-terminal extension is reported to be conserved among the family and lack the CaaX prenylation motif typical of membrane-associated Ras proteins. However, a putative CaaX motif has been identified in the alignment of the C-terminal residues of this CD. Pssm-ID: 206715 [Multi-domain] Cd Length: 219 Bit Score: 40.47 E-value: 1.18e-03
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| Roc | pfam08477 | Ras of Complex, Roc, domain of DAPkinase; Roc, or Ras of Complex, proteins are mitochondrial ... |
201-321 | 1.79e-03 | |||||||
Ras of Complex, Roc, domain of DAPkinase; Roc, or Ras of Complex, proteins are mitochondrial Rho proteins (Miro-1, and Miro-2) and atypical Rho GTPases. Full-length proteins have a unique domain organization, with tandem GTP-binding domains and two EF hand domains (pfam00036) that may bind calcium. They are also larger than classical small GTPases. It has been proposed that they are involved in mitochondrial homeostasis and apoptosis. Pssm-ID: 462490 [Multi-domain] Cd Length: 114 Bit Score: 37.87 E-value: 1.79e-03
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| YjeQ_EngC | cd01854 | Ribosomal interacting GTPase YjeQ/EngC, a circularly permuted subfamily of the Ras GTPases; ... |
133-258 | 1.80e-03 | |||||||
Ribosomal interacting GTPase YjeQ/EngC, a circularly permuted subfamily of the Ras GTPases; YjeQ (YloQ in Bacillus subtilis) is a ribosomal small subunit-dependent GTPase; hence also known as RsgA. YjeQ is a late-stage ribosomal biogenesis factor involved in the 30S subunit maturation, and it represents a protein family whose members are broadly conserved in bacteria and have been shown to be essential to the growth of E. coli and B. subtilis. Proteins of the YjeQ family contain all sequence motifs typical of the vast class of P-loop-containing GTPases, but show a circular permutation, with a G4-G1-G3 pattern of motifs as opposed to the regular G1-G3-G4 pattern seen in most GTPases. All YjeQ family proteins display a unique domain architecture, which includes an N-terminal OB-fold RNA-binding domain, the central permuted GTPase domain, and a zinc knuckle-like C-terminal cysteine domain. Pssm-ID: 206747 [Multi-domain] Cd Length: 211 Bit Score: 39.69 E-value: 1.80e-03
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| infB | CHL00189 | translation initiation factor 2; Provisional |
202-362 | 2.04e-03 | |||||||
translation initiation factor 2; Provisional Pssm-ID: 177089 [Multi-domain] Cd Length: 742 Bit Score: 40.59 E-value: 2.04e-03
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| AIG1 | pfam04548 | AIG1 family; Arabidopsis protein AIG1 appears to be involved in plant resistance to bacteria. |
31-116 | 3.19e-03 | |||||||
AIG1 family; Arabidopsis protein AIG1 appears to be involved in plant resistance to bacteria. Pssm-ID: 398307 [Multi-domain] Cd Length: 200 Bit Score: 38.74 E-value: 3.19e-03
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| SelB | COG3276 | Selenocysteine-specific translation elongation factor SelB [Translation, ribosomal structure ... |
311-380 | 3.68e-03 | |||||||
Selenocysteine-specific translation elongation factor SelB [Translation, ribosomal structure and biogenesis]; Selenocysteine-specific translation elongation factor SelB is part of the Pathway/BioSystem: Translation factors Pssm-ID: 442507 [Multi-domain] Cd Length: 630 Bit Score: 39.90 E-value: 3.68e-03
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| LepA | cd01890 | LepA also known as Elongation Factor 4 (EF4); LepA (also known as elongation factor 4, EF4) ... |
278-364 | 5.99e-03 | |||||||
LepA also known as Elongation Factor 4 (EF4); LepA (also known as elongation factor 4, EF4) belongs to the GTPase family and exhibits significant homology to the translation factors EF-G and EF-Tu, indicating its possible involvement in translation and association with the ribosome. LepA is ubiquitous in bacteria and eukaryota (e.g. yeast GUF1p), but is missing from archaea. This pattern of phyletic distribution suggests that LepA evolved through a duplication of the EF-G gene in bacteria, followed by early transfer into the eukaryotic lineage, most likely from the promitochondrial endosymbiont. Yeast GUF1p is not essential and mutant cells did not reveal any marked phenotype. Pssm-ID: 206677 [Multi-domain] Cd Length: 179 Bit Score: 37.51 E-value: 5.99e-03
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| MJ1464 | cd01859 | An uncharacterized, circularly permuted subfamily of the Ras GTPases; This family represents ... |
279-353 | 7.10e-03 | |||||||
An uncharacterized, circularly permuted subfamily of the Ras GTPases; This family represents archaeal GTPase typified by the protein MJ1464 from Methanococcus jannaschii. The members of this family show a circular permutation of the GTPase signature motifs so that C-terminal strands 5, 6, and 7 (strands 6 contain the NKxD motif) are relocated to the N terminus. Pssm-ID: 206752 [Multi-domain] Cd Length: 157 Bit Score: 37.30 E-value: 7.10e-03
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| YfjP | cd11383 | YfjP GTPase; The Era (E. coli Ras-like protein)-like YfjP subfamily includes several ... |
30-115 | 8.14e-03 | |||||||
YfjP GTPase; The Era (E. coli Ras-like protein)-like YfjP subfamily includes several uncharacterized bacterial GTPases that are similar to Era. They generally show sequence conservation in the region between the Walker A and B motifs (G1 and G3 box motifs), to the exclusion of other GTPases. Era is characterized by a distinct derivative of the KH domain (the pseudo-KH domain) which is located C-terminal to the GTPase domain. Pssm-ID: 206743 [Multi-domain] Cd Length: 140 Bit Score: 36.55 E-value: 8.14e-03
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| Toc34_like | cd01853 | Translocon at the Outer-envelope membrane of Chloroplasts 34-like (Toc34-like); The Toc34-like ... |
201-263 | 9.11e-03 | |||||||
Translocon at the Outer-envelope membrane of Chloroplasts 34-like (Toc34-like); The Toc34-like (Translocon at the Outer-envelope membrane of Chloroplasts) family contains several Toc proteins, including Toc34, Toc33, Toc120, Toc159, Toc86, Toc125, and Toc90. The Toc complex at the outer envelope membrane of chloroplasts is a molecular machine of ~500 kDa that contains a single Toc159 protein, four Toc75 molecules, and four or five copies of Toc34. Toc64 and Toc12 are associated with the translocon, but do not appear to be part of the core complex. The Toc translocon initiates the import of nuclear-encoded preproteins from the cytosol into the organelle. Toc34 and Toc159 are both GTPases, while Toc75 is a beta-barrel integral membrane protein. Toc159 is equally distributed between a soluble cytoplasmic form and a membrane-inserted form, suggesting that assembly of the Toc complex is dynamic. Toc34 and Toc75 act sequentially to mediate docking and insertion of Toc159 resulting in assembly of the functional translocon. Pssm-ID: 206652 Cd Length: 248 Bit Score: 37.68 E-value: 9.11e-03
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