polynucleotide adenylyltransferase is responsible for the post-transcriptional adenylation of the 3'-terminal of mRNA precursors and several small RNAs including signal recognition particle (SRP) RNA, nuclear 7SK RNA, U2 small nuclear RNA, and ribosomal 5S RNA
Poly(A) polymerase central domain; The central domain of Poly(A) polymerase shares structural ...
22-365
0e+00
Poly(A) polymerase central domain; The central domain of Poly(A) polymerase shares structural similarity with the allosteric activity domain of ribonucleotide reductase R1, which comprises a four-helix bundle and a three-stranded mixed beta- sheet. Even though the two enzymes bind ATP, the ATP-recognition motifs are different.
:
Pssm-ID: 461486 [Multi-domain] Cd Length: 344 Bit Score: 616.83 E-value: 0e+00
Poly(A) polymerase predicted RNA binding domain; Based on its similarity structurally to the ...
369-501
1.20e-18
Poly(A) polymerase predicted RNA binding domain; Based on its similarity structurally to the RNA recognition motif this domain is thought to be RNA binding.
The actual alignment was detected with superfamily member pfam04926:
Pssm-ID: 461484 Cd Length: 177 Bit Score: 84.27 E-value: 1.20e-18
Poly(A) polymerase central domain; The central domain of Poly(A) polymerase shares structural ...
22-365
0e+00
Poly(A) polymerase central domain; The central domain of Poly(A) polymerase shares structural similarity with the allosteric activity domain of ribonucleotide reductase R1, which comprises a four-helix bundle and a three-stranded mixed beta- sheet. Even though the two enzymes bind ATP, the ATP-recognition motifs are different.
Pssm-ID: 461486 [Multi-domain] Cd Length: 344 Bit Score: 616.83 E-value: 0e+00
Nucleotidyltransferase (NT) domain of poly(A) polymerases and terminal uridylyl transferases; ...
61-216
3.77e-29
Nucleotidyltransferase (NT) domain of poly(A) polymerases and terminal uridylyl transferases; Poly(A) polymerases (PAPs) catalyze mRNA poly(A) tail synthesis, and terminal uridylyl transferases (TUTases) uridylate RNA. PAPs in this subgroup include human PAP alpha, mouse testis-specific cytoplasmic PAP beta, human nuclear PAP gamma, Saccharomyces cerevisiae PAP1, TRF4 and-5, Schizosaccharomyces pombe caffeine-induced death proteins -1, and -14, Caenorhabditis elegans Germ Line Development-2, and Chlamydomonas reinhardtii MUT68. This family also includes human U6 snRNA-specific TUTase1, and Trypanosoma brucei 3'-TUTase-1,-2, and 4. This family belongs to the Pol beta-like NT superfamily. In the majority of enzymes in this superfamily, two carboxylates, Dx[D/E], together with a third more distal carboxylate, coordinate two divalent metal cations involved in a two-metal ion mechanism of nucleotide addition. For the majority of proteins in this family, these carboxylate residues are conserved.
Pssm-ID: 143392 [Multi-domain] Cd Length: 114 Bit Score: 111.88 E-value: 3.77e-29
Poly(A) polymerase predicted RNA binding domain; Based on its similarity structurally to the ...
369-501
1.20e-18
Poly(A) polymerase predicted RNA binding domain; Based on its similarity structurally to the RNA recognition motif this domain is thought to be RNA binding.
Pssm-ID: 461484 Cd Length: 177 Bit Score: 84.27 E-value: 1.20e-18
Poly(A) polymerase central domain; The central domain of Poly(A) polymerase shares structural ...
22-365
0e+00
Poly(A) polymerase central domain; The central domain of Poly(A) polymerase shares structural similarity with the allosteric activity domain of ribonucleotide reductase R1, which comprises a four-helix bundle and a three-stranded mixed beta- sheet. Even though the two enzymes bind ATP, the ATP-recognition motifs are different.
Pssm-ID: 461486 [Multi-domain] Cd Length: 344 Bit Score: 616.83 E-value: 0e+00
Nucleotidyltransferase (NT) domain of poly(A) polymerases and terminal uridylyl transferases; ...
61-216
3.77e-29
Nucleotidyltransferase (NT) domain of poly(A) polymerases and terminal uridylyl transferases; Poly(A) polymerases (PAPs) catalyze mRNA poly(A) tail synthesis, and terminal uridylyl transferases (TUTases) uridylate RNA. PAPs in this subgroup include human PAP alpha, mouse testis-specific cytoplasmic PAP beta, human nuclear PAP gamma, Saccharomyces cerevisiae PAP1, TRF4 and-5, Schizosaccharomyces pombe caffeine-induced death proteins -1, and -14, Caenorhabditis elegans Germ Line Development-2, and Chlamydomonas reinhardtii MUT68. This family also includes human U6 snRNA-specific TUTase1, and Trypanosoma brucei 3'-TUTase-1,-2, and 4. This family belongs to the Pol beta-like NT superfamily. In the majority of enzymes in this superfamily, two carboxylates, Dx[D/E], together with a third more distal carboxylate, coordinate two divalent metal cations involved in a two-metal ion mechanism of nucleotide addition. For the majority of proteins in this family, these carboxylate residues are conserved.
Pssm-ID: 143392 [Multi-domain] Cd Length: 114 Bit Score: 111.88 E-value: 3.77e-29
Poly(A) polymerase predicted RNA binding domain; Based on its similarity structurally to the ...
369-501
1.20e-18
Poly(A) polymerase predicted RNA binding domain; Based on its similarity structurally to the RNA recognition motif this domain is thought to be RNA binding.
Pssm-ID: 461484 Cd Length: 177 Bit Score: 84.27 E-value: 1.20e-18
Nucleotidyltransferase domain; Members of this family belong to a large family of ...
95-177
1.04e-11
Nucleotidyltransferase domain; Members of this family belong to a large family of nucleotidyltransferases. This family includes kanamycin nucleotidyltransferase (KNTase) which is a plasmid-coded enzyme responsible for some types of bacterial resistance to aminoglycosides. KNTase in-activates antibiotics by catalysing the addition of a nucleotidyl group onto the drug.
Pssm-ID: 396474 Cd Length: 91 Bit Score: 61.66 E-value: 1.04e-11
Nucleotidyltransferase (NT) domain of DNA polymerase beta and similar proteins; This ...
72-120
3.50e-03
Nucleotidyltransferase (NT) domain of DNA polymerase beta and similar proteins; This superfamily includes the NT domains of DNA polymerase beta and other family X DNA polymerases, as well as the NT domains of Class I and Class II CCA-adding enzymes, RelA- and SpoT-like ppGpp synthetases and hydrolases, 2'5'-oligoadenylate (2-5A)synthetases, Escherichia coli adenylyltransferase (GlnE), Escherichia coli uridylyl transferase (GlnD), poly (A) polymerases, terminal uridylyl transferases, and Staphylococcus aureus kanamycin nucleotidyltransferase, and similar proteins. The Escherichia coli CCA-adding enzyme belongs to this superfamily but is not included as this enzyme lacks the N-terminal helix conserved in the remainder of the superfamily. In the majority of the Pol beta-like superfamily NTs, two carboxylates, Dx[D/E], together with a third more distal carboxylate coordinate two divalent metal cations that are essential for catalysis. These divalent metal ions are involved in a two-metal ion mechanism of nucleotide addition. Two of the three catalytic carboxylates are found in Rel-Spo enzymes, with the second carboxylate of the DXD motif missing. Evidence supports a single-cation synthetase mechanism for Rel-Spo enzymes.
Pssm-ID: 143387 [Multi-domain] Cd Length: 49 Bit Score: 36.15 E-value: 3.50e-03
Database: CDSEARCH/cdd Low complexity filter: no Composition Based Adjustment: yes E-value threshold: 0.01
References:
Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
of the residues that compose this conserved feature have been mapped to the query sequence.
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Functional characterization of the conserved domain architecture found on the query.
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This image shows a graphical summary of conserved domains identified on the query sequence.
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if a domain or superfamily has been annotated with functional sites (conserved features),
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click on the bars or triangles to view your query sequence embedded in a multiple sequence alignment of the proteins used to develop the corresponding domain model.
The table lists conserved domains identified on the query sequence. Click on the plus sign (+) on the left to display full descriptions, alignments, and scores.
Click on the domain model's accession number to view the multiple sequence alignment of the proteins used to develop the corresponding domain model.
To view your query sequence embedded in that multiple sequence alignment, click on the colored bars in the Graphical Summary portion of the search results page,
or click on the triangles, if present, that represent functional sites (conserved features)
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Concise Display shows only the best scoring domain model, in each hit category listed below except non-specific hits, for each region on the query sequence.
(labeled illustration) Standard Display shows only the best scoring domain model from each source, in each hit category listed below for each region on the query sequence.
(labeled illustration) Full Display shows all domain models, in each hit category below, that meet or exceed the RPS-BLAST threshold for statistical significance.
(labeled illustration) Four types of hits can be shown, as available,
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specific hits meet or exceed a domain-specific e-value threshold
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and represent a very high confidence that the query sequence belongs to the same protein family as the sequences use to create the domain model
non-specific hits
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Retrieve proteins that contain one or more of the domains present in the query sequence, using the Conserved Domain Architecture Retrieval Tool
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