taurine ABC transporter substrate-binding protein [Escherichia coli]
Protein Classification
taurine ABC transporter substrate-binding protein( domain architecture ID 10013814)
taurine ABC transporter substrate-binding protein functions as the initial receptor of the binding-protein-dependent ABC-type transport system for taurine
List of domain hits
| Name | Accession | Description | Interval | E-value | |||||
| tauA | PRK11480 | taurine transporter substrate binding subunit; Provisional |
1-320 | 0e+00 | |||||
taurine transporter substrate binding subunit; Provisional : Pssm-ID: 183158 Cd Length: 320 Bit Score: 637.42 E-value: 0e+00
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| Name | Accession | Description | Interval | E-value | ||||||
| tauA | PRK11480 | taurine transporter substrate binding subunit; Provisional |
1-320 | 0e+00 | ||||||
taurine transporter substrate binding subunit; Provisional Pssm-ID: 183158 Cd Length: 320 Bit Score: 637.42 E-value: 0e+00
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| taurine_ABC_bnd | TIGR01729 | taurine ABC transporter, periplasmic binding protein; This model identifies a cluster of ABC ... |
25-320 | 9.88e-174 | ||||||
taurine ABC transporter, periplasmic binding protein; This model identifies a cluster of ABC transporter periplasmic substrate binding proteins, apparently specific for taurine. Transport systems for taurine (NH2-CH2-CH2-SO3H), sulfonates, and sulfate esters import sulfur when sulfate levels are low. The most closely related proteins outside this family are putative aliphatic sulfonate binding proteins (TIGR01728). Pssm-ID: 130790 Cd Length: 300 Bit Score: 483.30 E-value: 9.88e-174
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| TauA | COG4521 | ABC-type taurine transport system, periplasmic component [Inorganic ion transport and ... |
3-320 | 6.76e-148 | ||||||
ABC-type taurine transport system, periplasmic component [Inorganic ion transport and metabolism]; Pssm-ID: 443595 [Multi-domain] Cd Length: 332 Bit Score: 418.89 E-value: 6.76e-148
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| PBP2_taurine | cd13560 | Taurine-binding periplasmic protein; the type 2 periplasmic binding protein fold; This ... |
24-239 | 9.18e-116 | ||||||
Taurine-binding periplasmic protein; the type 2 periplasmic binding protein fold; This subfamily includes the periplasmic component of putative ABC-type sulfonate transport system similar to SsuA. These domains are found in eubacterial SsuA proteins that serve as initial receptors in the ABC transport of bicarbonate, nitrate, taurine, or a wide range of aliphatic sulfonates, while other closest homologs are involved in thiamine (vitamin B1) biosynthetic pathway and desulfurization (DszB). After binding the ligand, SsuA interacts with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. The SsuA proteins belong to the PBP2 superfamily of periplasmic binding proteins that differ in size and ligand specificity, but have similar tertiary structures consisting of two globular subdomains connected by a flexible hinge. They have been shown to bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. Pssm-ID: 270278 [Multi-domain] Cd Length: 218 Bit Score: 333.12 E-value: 9.18e-116
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| OpuAC | pfam04069 | Substrate binding domain of ABC-type glycine betaine transport system; Part of a high affinity ... |
25-247 | 8.66e-36 | ||||||
Substrate binding domain of ABC-type glycine betaine transport system; Part of a high affinity multicomponent binding-protein-dependent transport system involved in bacterial osmoregulation. This domain is often fused to the permease component of the transporter complex. Family members are often integral membrane proteins or predicted to be attached to the membrane by a lipid anchor. Glycine betaine is involved in protection from high osmolarity environments for example in Bacillus subtilis. The family member OpuBC is closely related, and involved in choline transport. Choline is necessary for the biosynthesis of glycine betaine. L-carnitine is important for osmoregulation in Listeria monocytogenes. Family also contains proteins binding l-proline (ProX), histidine (HisX) and taurine (TauA). Pssm-ID: 397954 [Multi-domain] Cd Length: 257 Bit Score: 129.75 E-value: 8.66e-36
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| PBPb | smart00062 | Bacterial periplasmic substrate-binding proteins; bacterial proteins, eukaryotic ones are in ... |
24-231 | 1.33e-16 | ||||||
Bacterial periplasmic substrate-binding proteins; bacterial proteins, eukaryotic ones are in PBPe Pssm-ID: 214497 [Multi-domain] Cd Length: 219 Bit Score: 77.37 E-value: 1.33e-16
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| Name | Accession | Description | Interval | E-value | ||||||
| tauA | PRK11480 | taurine transporter substrate binding subunit; Provisional |
1-320 | 0e+00 | ||||||
taurine transporter substrate binding subunit; Provisional Pssm-ID: 183158 Cd Length: 320 Bit Score: 637.42 E-value: 0e+00
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| taurine_ABC_bnd | TIGR01729 | taurine ABC transporter, periplasmic binding protein; This model identifies a cluster of ABC ... |
25-320 | 9.88e-174 | ||||||
taurine ABC transporter, periplasmic binding protein; This model identifies a cluster of ABC transporter periplasmic substrate binding proteins, apparently specific for taurine. Transport systems for taurine (NH2-CH2-CH2-SO3H), sulfonates, and sulfate esters import sulfur when sulfate levels are low. The most closely related proteins outside this family are putative aliphatic sulfonate binding proteins (TIGR01728). Pssm-ID: 130790 Cd Length: 300 Bit Score: 483.30 E-value: 9.88e-174
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| TauA | COG4521 | ABC-type taurine transport system, periplasmic component [Inorganic ion transport and ... |
3-320 | 6.76e-148 | ||||||
ABC-type taurine transport system, periplasmic component [Inorganic ion transport and metabolism]; Pssm-ID: 443595 [Multi-domain] Cd Length: 332 Bit Score: 418.89 E-value: 6.76e-148
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| PBP2_taurine | cd13560 | Taurine-binding periplasmic protein; the type 2 periplasmic binding protein fold; This ... |
24-239 | 9.18e-116 | ||||||
Taurine-binding periplasmic protein; the type 2 periplasmic binding protein fold; This subfamily includes the periplasmic component of putative ABC-type sulfonate transport system similar to SsuA. These domains are found in eubacterial SsuA proteins that serve as initial receptors in the ABC transport of bicarbonate, nitrate, taurine, or a wide range of aliphatic sulfonates, while other closest homologs are involved in thiamine (vitamin B1) biosynthetic pathway and desulfurization (DszB). After binding the ligand, SsuA interacts with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. The SsuA proteins belong to the PBP2 superfamily of periplasmic binding proteins that differ in size and ligand specificity, but have similar tertiary structures consisting of two globular subdomains connected by a flexible hinge. They have been shown to bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. Pssm-ID: 270278 [Multi-domain] Cd Length: 218 Bit Score: 333.12 E-value: 9.18e-116
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| PBP2_NrtA_SsuA_CpmA_like | cd01008 | Substrate binding domain of ABC-type nitrate/sulfonate/bicarbonate transporters, a member of ... |
24-231 | 1.96e-57 | ||||||
Substrate binding domain of ABC-type nitrate/sulfonate/bicarbonate transporters, a member of the type 2 periplasmic binding fold superfamily; This family represents the periplasmic binding proteins involved in nitrate, alkanesulfonate, and bicarbonate transport. These domains are found in eubacterial perisplamic-binding proteins that serve as initial receptors in the ABC transport of bicarbonate, nitrate, taurine, or a wide range of aliphatic sulfonates. Other closest homologs involved in thiamine (vitamin B1) biosynthetic pathway and desulfurization (DszB) are also included in this family. After binding their ligand with high affinity, they interact with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. These binding proteins belong to the PBP2 superfamily of periplasmic binding proteins that differ in size and ligand specificity, but have similar tertiary structures consisting of two globular subdomains connected by a flexible hinge. They have been shown to bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. Pssm-ID: 270229 [Multi-domain] Cd Length: 212 Bit Score: 184.41 E-value: 1.96e-57
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| TauA | COG0715 | ABC-type nitrate/sulfonate/bicarbonate transport system, periplasmic component [Inorganic ion ... |
9-305 | 2.37e-54 | ||||||
ABC-type nitrate/sulfonate/bicarbonate transport system, periplasmic component [Inorganic ion transport and metabolism]; Pssm-ID: 440479 [Multi-domain] Cd Length: 297 Bit Score: 179.43 E-value: 2.37e-54
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| SsuA_fam | TIGR01728 | ABC transporter, substrate-binding protein, aliphatic sulfonates family; Members of this ... |
25-304 | 7.10e-40 | ||||||
ABC transporter, substrate-binding protein, aliphatic sulfonates family; Members of this family are substrate-binding periplasmic proteins of ABC transporters. This subfamily includes SsuA, a member of a transporter operon needed to obtain sulfur from aliphatic sulfonates. Related proteins outside the scope of this model include taurine (NH2-CH2-CH2-S03H) binding proteins, the probable sulfate ester binding protein AtsR, and the probable aromatic sulfonate binding protein AsfC. All these families make sulfur available when Cys and sulfate levels are low. Please note that phylogenetic analysis by neighbor-joining suggests that a number of sequences belonging to this family have been excluded because of scoring lower than taurine-binding proteins. [Transport and binding proteins, Other] Pssm-ID: 130789 [Multi-domain] Cd Length: 288 Bit Score: 141.34 E-value: 7.10e-40
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| PBP2_NrtA_CpmA_like | cd13553 | Substrate binding domain of ABC-type nitrate/bicarbonate transporters, a member of the type 2 ... |
24-231 | 3.69e-38 | ||||||
Substrate binding domain of ABC-type nitrate/bicarbonate transporters, a member of the type 2 periplasmic binding fold superfamily; This subfamily includes nitrate (NrtA) and bicarbonate (CmpA) receptors. These domains are found in eubacterial perisplamic-binding proteins that serve as initial receptors in the ABC transport of bicarbonate, nitrate, taurine, or a wide range of aliphatic sulfonates, while other closest homologs are involved in thiamine (vitamin B1) biosynthetic pathway and desulfurization (DszB). After binding their ligand with high affinity, they interact with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. These binding proteins belong to the PBP2 superfamily of periplasmic binding proteins that differ in size and ligand specificity, but have similar tertiary structures consisting of two globular subdomains connected by a flexible hinge. They have been shown to bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. Pssm-ID: 270271 [Multi-domain] Cd Length: 212 Bit Score: 134.63 E-value: 3.69e-38
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| OpuAC | pfam04069 | Substrate binding domain of ABC-type glycine betaine transport system; Part of a high affinity ... |
25-247 | 8.66e-36 | ||||||
Substrate binding domain of ABC-type glycine betaine transport system; Part of a high affinity multicomponent binding-protein-dependent transport system involved in bacterial osmoregulation. This domain is often fused to the permease component of the transporter complex. Family members are often integral membrane proteins or predicted to be attached to the membrane by a lipid anchor. Glycine betaine is involved in protection from high osmolarity environments for example in Bacillus subtilis. The family member OpuBC is closely related, and involved in choline transport. Choline is necessary for the biosynthesis of glycine betaine. L-carnitine is important for osmoregulation in Listeria monocytogenes. Family also contains proteins binding l-proline (ProX), histidine (HisX) and taurine (TauA). Pssm-ID: 397954 [Multi-domain] Cd Length: 257 Bit Score: 129.75 E-value: 8.66e-36
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| PBP2_SsuA_like_6 | cd13563 | Putative substrate binding domain of sulfonate binding protein-like, a member of the type 2 ... |
45-231 | 1.42e-32 | ||||||
Putative substrate binding domain of sulfonate binding protein-like, a member of the type 2 periplasmic binding protein fold; This subfamily includes the periplasmic component of putative ABC-type sulfonate transport system similar to SsuA. These domains are found in eubacterial SsuA proteins that serve as initial receptors in the ABC transport of bicarbonate, nitrate, taurine, or a wide range of aliphatic sulfonates, while other closest homologs are involved in thiamine (vitamin B1) biosynthetic pathway and desulfurization (DszB). After binding the ligand, SsuA interacts with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. The SsuA proteins belong to the PBP2 superfamily of periplasmic binding proteins that differ in size and ligand specificity, but have similar tertiary structures consisting of two globular subdomains connected by a flexible hinge. They have been shown to bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. Pssm-ID: 270281 [Multi-domain] Cd Length: 208 Bit Score: 120.03 E-value: 1.42e-32
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| PBP2_SsuA_like_3 | cd13559 | Putative substrate binding domain of sulfonate binding protein-like, the type 2 periplasmic ... |
53-252 | 9.90e-31 | ||||||
Putative substrate binding domain of sulfonate binding protein-like, the type 2 periplasmic binding protein fold; This subfamily includes the periplasmic component of putative ABC-type sulfonate transport system similar to SsuA. These domains are found in eubacterial SsuA proteins that serve as initial receptors in the ABC transport of bicarbonate, nitrate, taurine, or a wide range of aliphatic sulfonates, while other closest homologs are involved in thiamine (vitamin B1) biosynthetic pathway and desulfurization (DszB). After binding the ligand, SsuA interacts with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. The SsuA proteins belong to the PBP2 superfamily of periplasmic binding proteins that differ in size and ligand specificity, but have similar tertiary structures consisting of two globular subdomains connected by a flexible hinge. They have been shown to bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. Pssm-ID: 270277 Cd Length: 258 Bit Score: 116.37 E-value: 9.90e-31
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| PBP2_SsuA_like_5 | cd13562 | Putative substrate binding domain of sulfonate binding protein-like, the type 2 periplasmic ... |
50-226 | 1.95e-28 | ||||||
Putative substrate binding domain of sulfonate binding protein-like, the type 2 periplasmic binding protein fold; This subfamily includes sulfonate binding domains found in eubacterial SsuA proteins that serve as initial receptors in the ABC transport of bicarbonate, nitrate, taurine, or a wide range of aliphatic sulfonates, while other closest homologs are involved in thiamine (vitamin B1) biosynthetic pathway and desulfurization (DszB). After binding the ligand, SsuA interacts with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. The SsuA proteins belong to the PBP2 superfamily of periplasmic binding proteins that differ in size and ligand specificity, but have similar tertiary structures consisting of two globular subdomains connected by a flexible hinge. They have been shown to bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. Pssm-ID: 270280 [Multi-domain] Cd Length: 215 Bit Score: 109.13 E-value: 1.95e-28
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| PBP2_SsuA_like_4 | cd13561 | Putative substrate binding domain of sulfonate binding protein-like, the type 2 periplasmic ... |
38-226 | 2.31e-27 | ||||||
Putative substrate binding domain of sulfonate binding protein-like, the type 2 periplasmic binding protein fold; This subfamily includes the periplasmic component of putative ABC-type sulfonate transport system similar to SsuA. These domains are found in eubacterial SsuA proteins that serve as initial receptors in the ABC transport of bicarbonate, nitrate, taurine, or a wide range of aliphatic sulfonates, while other closest homologs are involved in thiamine (vitamin B1) biosynthetic pathway and desulfurization (DszB). After binding the ligand, SsuA interacts with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. The SsuA proteins belong to the PBP2 superfamily of periplasmic binding proteins that differ in size and ligand specificity, but have similar tertiary structures consisting of two globular subdomains connected by a flexible hinge. They have been shown to bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. Pssm-ID: 270279 [Multi-domain] Cd Length: 212 Bit Score: 106.30 E-value: 2.31e-27
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| PBP2_ThiY_THI5_like_1 | cd13652 | Putative substrate binding domain of an ABC-type transporter similar to ThiY/THI5; the type 2 ... |
25-224 | 5.67e-27 | ||||||
Putative substrate binding domain of an ABC-type transporter similar to ThiY/THI5; the type 2 periplasmic binding protein fold; This subfamily is phylogenetically similar to ThiY, which is the periplasmic N-formyl-4-amino-5-(aminomethyl)-2-methylpyrimidine (FAMP) binding component of the ABC transport system (ThiXYZ). FAMP is imported into cell by the transporter, where it is then incorporated into the thiamin biosynthetic pathway. The closest structural homologs of ThiY are THI5, which is responsible for the synthesis of 4-amino-5-(hydroxymethyl)-2-methylpyrimidine phosphate (HMP-P) in the thiamin biosynthetic pathway of eukaryotes, and periplasmic binding proteins involved in alkanesulfonate/nitrate and bicarbonate transport. After binding the ligand, they interact with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. The ThiY/THI5 proteins belong to the PBP2 superfamily of periplasmic binding proteins that differ in size and ligand specificity, but have similar tertiary structures consisting of two globular subdomains connected by a flexible hinge. They have been shown to bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. Pssm-ID: 270370 [Multi-domain] Cd Length: 217 Bit Score: 105.16 E-value: 5.67e-27
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| PBP2_SsuA | cd13557 | Substrate binding domain of sulfonate binding protein, a member of the type 2 periplasmic ... |
25-224 | 1.12e-23 | ||||||
Substrate binding domain of sulfonate binding protein, a member of the type 2 periplasmic binding fold superfamily; This subfamily includes the sulfonate binding domains SsuA found in eubacterial SsuA proteins that serve as initial receptors in the ABC transport of bicarbonate, nitrate, taurine, or a wide range of aliphatic sulfonates, while other closest homologs are involved in thiamine (vitamin B1) biosynthetic pathway and desulfurization (DszB). After binding the ligand, SsuA interacts with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. The SsuA proteins belong to the PBPII superfamily of periplasmic binding proteins that differ in size and ligand specificity, but have similar tertiary structures consisting of two globular subdomains connected by a flexible hinge. They have been shown to bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. Pssm-ID: 270275 Cd Length: 275 Bit Score: 97.75 E-value: 1.12e-23
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| PBP2_sulfate_ester_like | cd13555 | Sulfate ester binding protein-like, the type 2 periplasmic binding protein fold; This ... |
34-260 | 2.00e-21 | ||||||
Sulfate ester binding protein-like, the type 2 periplasmic binding protein fold; This subfamily includes the periplasmic component of putative ABC-type sulfonate transport system similar to SsuA. These domains are found in eubacterial SsuA proteins that serve as initial receptors in the ABC transport of bicarbonate, nitrate, taurine, or a wide range of aliphatic sulfonates, while other closest homologs are involved in thiamine (vitamin B1) biosynthetic pathway and desulfurization (DszB). After binding the ligand, SsuA interacts with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. The SsuA proteins belong to the PBP2 superfamily of periplasmic binding proteins that differ in size and ligand specificity, but have similar tertiary structures consisting of two globular subdomains connected by a flexible hinge. They have been shown to bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. Pssm-ID: 270273 Cd Length: 268 Bit Score: 91.63 E-value: 2.00e-21
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| PBP2_SsuA_like_2 | cd13558 | Putative substrate binding domain of sulfonate binding protein, the type 2 periplasmic binding ... |
52-259 | 1.07e-19 | ||||||
Putative substrate binding domain of sulfonate binding protein, the type 2 periplasmic binding protein fold; This subfamily includes the periplasmic component of putative ABC-type sulfonate transport system similar to SsuA. These domains are found in eubacterial SsuA proteins that serve as initial receptors in the ABC transport of bicarbonate, nitrate, taurine, or a wide range of aliphatic sulfonates, while other closest homologs are involved in thiamine (vitamin B1) biosynthetic pathway and desulfurization (DszB). After binding the ligand, SsuA interacts with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. The SsuA proteins belong to the PBP2 superfamily of periplasmic binding proteins that differ in size and ligand specificity, but have similar tertiary structures consisting of two globular subdomains connected by a flexible hinge. They have been shown to bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. Pssm-ID: 270276 Cd Length: 267 Bit Score: 86.95 E-value: 1.07e-19
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| NMT1_2 | pfam13379 | NMT1-like family; This family is closely related to the pfam09084 family. |
25-255 | 7.05e-19 | ||||||
NMT1-like family; This family is closely related to the pfam09084 family. Pssm-ID: 463863 Cd Length: 254 Bit Score: 84.32 E-value: 7.05e-19
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| PBPb | smart00062 | Bacterial periplasmic substrate-binding proteins; bacterial proteins, eukaryotic ones are in ... |
24-231 | 1.33e-16 | ||||||
Bacterial periplasmic substrate-binding proteins; bacterial proteins, eukaryotic ones are in PBPe Pssm-ID: 214497 [Multi-domain] Cd Length: 219 Bit Score: 77.37 E-value: 1.33e-16
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| NMT1 | pfam09084 | NMT1/THI5 like; This family contains the NMT1 and THI5 proteins. These proteins are proposed ... |
38-241 | 2.14e-16 | ||||||
NMT1/THI5 like; This family contains the NMT1 and THI5 proteins. These proteins are proposed to be required for the biosynthesis of the pyrimidine moiety of thiamine.3]. They are regulated by thiamine. The protein adopts a fold related to the periplasmic binding protein (PBP) family. Both pyridoxal-5'-phosphate (PLP) and an iron atom are bound to the protein suggesting numerous residues of the active site necessary for HMP-P biosynthesis. The yeast protein is a dimer and, although exceptionally using PLP as a substrate, has notable similarities with enzymes dependent on this molecule as a cofactor. Pssm-ID: 430398 [Multi-domain] Cd Length: 216 Bit Score: 76.49 E-value: 2.14e-16
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| PBP2_DszB | cd13554 | Substrate binding domain of 2'-hydroxybiphenyl-2-sulfinate desulfinase, a member of the type 2 ... |
26-241 | 3.70e-16 | ||||||
Substrate binding domain of 2'-hydroxybiphenyl-2-sulfinate desulfinase, a member of the type 2 periplasmic binding fold superfamily; This subfamily includes DszB, which converts 2'-hydroxybiphenyl-2-sulfinate to 2-hydroxybiphenyl and sulfinate at the rate-limiting step of the microbial dibenzothiophene desulfurization pathway. The overall fold of DszB is highly similar to those of periplasmic substrate-binding proteins that serve as initial receptors in the ABC transport of bicarbonate, nitrate, taurine, or a wide range of aliphatic sulfonates. After binding their ligand with high affinity, they interact with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. The DszB protein belongs to the PBP2 superfamily of periplasmic binding proteins that differ in size and ligand specificity, but have similar tertiary structures consisting of two globular subdomains connected by a flexible hinge. They have been shown to bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. Pssm-ID: 270272 [Multi-domain] Cd Length: 246 Bit Score: 76.40 E-value: 3.70e-16
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| PBP2_SsuA_like_1 | cd13556 | Substrate binding domain of putative sulfonate binding protein, a member of the type 2 ... |
68-240 | 1.13e-15 | ||||||
Substrate binding domain of putative sulfonate binding protein, a member of the type 2 periplasmic binding fold superfamily; This subfamily includes the periplasmic component of putative ABC-type sulfonate transport system similar to SsuA. These domains are found in eubacterial SsuA proteins that serve as initial receptors in the ABC transport of bicarbonate, nitrate, taurine, or a wide range of aliphatic sulfonates, while other closest homologs are involved in thiamine (vitamin B1) biosynthetic pathway and desulfurization (DszB). After binding the ligand, SsuA interacts with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. The SsuA proteins belong to the PBP2 superfamily of periplasmic binding proteins that differ in size and ligand specificity, but have similar tertiary structures consisting of two globular subdomains connected by a flexible hinge. They have been shown to bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. Pssm-ID: 270274 Cd Length: 265 Bit Score: 75.58 E-value: 1.13e-15
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| PBP2_ThiY_THI5_like | cd13564 | Substrate binding domain of ABC-type transporter for thiamin biosynthetic pathway ... |
35-231 | 3.11e-13 | ||||||
Substrate binding domain of ABC-type transporter for thiamin biosynthetic pathway intermediates and similar proteins; the type 2 periplasmic binding protein fold; ThiY is the periplasmic N-formyl-4-amino-5-(aminomethyl)-2-methylpyrimidine (FAMP) binding component of the ABC transport system (ThiXYZ). FAMP is imported into cell by the transporter, where it is then incorporated into the thiamin biosynthetic pathway. The closest structural homologs of ThiY are THI5, which is responsible for the synthesis of 4-amino-5-(hydroxymethyl)-2-methylpyrimidine phosphate (HMP-P) in the thiamin biosynthetic pathway of eukaryotes, and periplasmic binding proteins involved in alkanesulfonate/nitrate and bicarbonate transport. After binding the ligand, they interact with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. The ThiY/THI5 proteins belong to the PBP2 superfamily of periplasmic binding proteins that differ in size and ligand specificity, but have similar tertiary structures consisting of two globular subdomains connected by a flexible hinge. They have been shown to bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. Pssm-ID: 270282 [Multi-domain] Cd Length: 214 Bit Score: 67.53 E-value: 3.11e-13
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| PhnD | COG3221 | ABC-type phosphate/phosphonate transport system, periplasmic component [Inorganic ion ... |
46-226 | 1.57e-08 | ||||||
ABC-type phosphate/phosphonate transport system, periplasmic component [Inorganic ion transport and metabolism]; Pssm-ID: 442454 [Multi-domain] Cd Length: 250 Bit Score: 54.54 E-value: 1.57e-08
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| PRK11553 | PRK11553 | alkanesulfonate transporter substrate-binding subunit; Provisional |
1-295 | 3.22e-08 | ||||||
alkanesulfonate transporter substrate-binding subunit; Provisional Pssm-ID: 236929 Cd Length: 314 Bit Score: 54.02 E-value: 3.22e-08
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| Imp | COG2358 | TRAP-type uncharacterized transport system, periplasmic component [General function prediction ... |
12-189 | 5.53e-08 | ||||||
TRAP-type uncharacterized transport system, periplasmic component [General function prediction only]; Pssm-ID: 441925 [Multi-domain] Cd Length: 303 Bit Score: 53.31 E-value: 5.53e-08
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| PBP2_PhnD_like | cd01071 | Substrate binding domain of phosphonate uptake system-like, a member of the type 2 ... |
25-226 | 2.09e-07 | ||||||
Substrate binding domain of phosphonate uptake system-like, a member of the type 2 periplasmic-binding fold superfamily; This family includes alkylphosphonate binding domain PhnD. These domains are found in PhnD-like proteins that are predicted to function as initial receptors in hypophosphite, phosphonate, or phosphate ABC transport in archaea and eubacteria. PhnD is the periplasmic binding component of an ABC-type phosphonate uptake system (PhnCDE) that recognizes and binds phosphonate. PhnD belongs to the PBP2 superfamily of periplasmic binding proteins that differ in size and ligand specificity, but have similar tertiary structures consisting of two globular subdomains connected by a flexible hinge. The PBP2 have been shown to bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. Pssm-ID: 270232 [Multi-domain] Cd Length: 253 Bit Score: 51.11 E-value: 2.09e-07
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| PBP2_TAXI_TRAP | cd13520 | Substrate binding domain of TAXI proteins of the tripartite ATP-independent periplasmic ... |
60-173 | 4.29e-07 | ||||||
Substrate binding domain of TAXI proteins of the tripartite ATP-independent periplasmic transporters; the type 2 periplasmic binding protein fold; This group includes Thermus thermophilus GluBP (TtGluBP) of TAXI-TRAP family and closely related proteins. TRAP transporters are ubiquitous in prokaryotes, but absent from eukaryotes. They are comprised of an SBP (substrate-binding protein) of the DctP or TAXI families and two unequally sized integral membrane components. Although TtGluBP is predicted to be an L-glutamate and/or an L-glutamine-binding protein, the substrate spectrum of TAXI proteins remains to be defined. A sequence-homology search also shows that TtGluBP shares low sequence homology with putative immunogenic proteins of uncharacterized function. The substrate-binding domain of TAXI proteins belongs to the type 2 periplasmic-binding fold protein (PBP2) superfamily, whose members are involved in chemotaxis and uptake of nutrients and other small molecules from the extracellular space as a primary receptor. PBP2 typically comprises of two globular subdomains connected by a flexible hinge and bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and tworeceptor cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. Pssm-ID: 270238 [Multi-domain] Cd Length: 285 Bit Score: 50.31 E-value: 4.29e-07
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| Periplasmic_Binding_Protein_Type_2 | cd00648 | Type 2 periplasmic binding fold superfamily; This evolutionary model and hierarchy represent ... |
24-211 | 7.23e-07 | ||||||
Type 2 periplasmic binding fold superfamily; This evolutionary model and hierarchy represent the ligand-binding domains found in solute binding proteins that serve as initial receptors in the transport, signal transduction and channel gating. The PBP2 proteins share the same architecture as periplasmic binding proteins type 1 (PBP1), but have a different topology. They are typically comprised of two globular subdomains connected by a flexible hinge and bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. The origin of PBP module can be traced across the distant phyla, including eukaryotes, archebacteria, and prokaryotes. The majority of PBP2 proteins are involved in the uptake of a variety of soluble substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. Besides transport proteins, the family includes ionotropic glutamate receptors and unorthodox sensor proteins involved in signal transduction. The substrate binding domain of the LysR transcriptional regulators and the oligopeptide-like transport systems also contain the type 2 periplasmic binding fold and thus they are significantly homologous to that of the PBP2; however, these two families are grouped into a separate hierarchy of the PBP2 superfamily due to the large number of protein sequences. Pssm-ID: 270214 [Multi-domain] Cd Length: 196 Bit Score: 49.11 E-value: 7.23e-07
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| Phosphonate-bd | pfam12974 | ABC transporter, phosphonate, periplasmic substrate-binding protein; This is a family of ... |
46-224 | 8.85e-06 | ||||||
ABC transporter, phosphonate, periplasmic substrate-binding protein; This is a family of periplasmic proteins which are part of the transport system for alkylphosphonate uptake. Pssm-ID: 432911 [Multi-domain] Cd Length: 243 Bit Score: 46.10 E-value: 8.85e-06
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| PBP2_ThiY | cd13651 | Substrate binding domain of ABC-type transporters for thiamin biosynthetic pathway ... |
38-231 | 1.44e-05 | ||||||
Substrate binding domain of ABC-type transporters for thiamin biosynthetic pathway intermediates; a member of the type 2 periplasmic binding fold superfamily; ThiY is the periplasmic N-formyl-4-amino-5-(aminomethyl)-2-methylpyrimidine (FAMP) binding component of the ABC transport system (ThiXYZ). FAMP is imported into cell by the transporter, where it is then incorporated into the thiamin biosynthetic pathway. The closest structural homologs of ThiY are periplasmic binding proteins involved in alkanesulfonate/nitrate and bicarbonate transport , as well as THI5 which is responsible for the synthesis of 4-amino-5-(hydroxymethyl)-2-methylpyrimidine phosphate (HMP-P) in the thiamin biosynthetic pathway of eukaryotes. After binding the ligand, they interact with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. The ThiY/THI5 proteins belong to the PBP2 superfamily of periplasmic binding proteins that differ in size and ligand specificity, but have similar tertiary structures consisting of two globular subdomains connected by a flexible hinge. They have been shown to bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. Pssm-ID: 270369 [Multi-domain] Cd Length: 214 Bit Score: 45.42 E-value: 1.44e-05
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| HisJ | COG0834 | ABC-type amino acid transport/signal transduction system, periplasmic component/domain [Amino ... |
45-231 | 8.23e-05 | ||||||
ABC-type amino acid transport/signal transduction system, periplasmic component/domain [Amino acid transport and metabolism, Signal transduction mechanisms]; Pssm-ID: 440596 [Multi-domain] Cd Length: 223 Bit Score: 43.04 E-value: 8.23e-05
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| PBP2_PnhD_3 | cd13573 | Substrate binding domain of uncharacterized ABC-type phosphonate-like transporter; contains ... |
28-126 | 1.91e-04 | ||||||
Substrate binding domain of uncharacterized ABC-type phosphonate-like transporter; contains the type 2 periplasmic binding fold; This subfamily includes putative periplasmic binding component of an ABC transport system similar to alkylphosphonate binding domain PnhD. These domains are found in PnhD-like proteins that are predicted to function as initial receptors in hypophosphite, phosphonate, or phosphate ABC transport in archaea and eubacteria. They belong to the PBP2 superfamily of periplasmic binding proteins that differ in size and ligand specificity, but have similar tertiary structures consisting of two globular subdomains connected by a flexible hinge. They have been shown to bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. Pssm-ID: 270291 [Multi-domain] Cd Length: 253 Bit Score: 42.08 E-value: 1.91e-04
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| PBP2_YfhD_N | cd01009 | The solute binding domain of YfhD proteins, a member of the type 2 periplasmic binding fold ... |
45-143 | 5.17e-04 | ||||||
The solute binding domain of YfhD proteins, a member of the type 2 periplasmic binding fold protein superfamily; This subfamily includes the solute binding domain YfhD_N. These domains are found in the YfhD proteins that are predicted to function as lytic transglycosylases that cleave the glycosidic bond between N-acetylmuramic acid and N-acetylglucosamin in peptidoglycan, while the YfhD_N domain might act as an auxiliary or regulatory subunit. In addition to periplasmic solute binding domain, they have an SLT domain, typically found in soluble lytic transglycosylases, and a C-terminal low complexity domain. The YfhD proteins might have been recruited to create localized cell wall openings required for transport of large substrates such as DNA. They belong to the PBP2 superfamily of periplasmic binding proteins that differ in size and ligand specificity, but have similar tertiary structures consisting of two globular subdomains connected by a flexible hinge. They have been shown to bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. Pssm-ID: 270230 [Multi-domain] Cd Length: 223 Bit Score: 40.66 E-value: 5.17e-04
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| PBP2_peptides_like | cd13530 | Peptide-binding protein and related homologs; type 2 periplasmic binding protein fold; This ... |
45-212 | 9.91e-04 | ||||||
Peptide-binding protein and related homologs; type 2 periplasmic binding protein fold; This domain is found in solute binding proteins that serve as initial receptors in the ABC transport, signal transduction and channel gating. The PBP2 proteins share the same architecture as periplasmic binding proteins type 1, but have a different topology. They are typically comprised of two globular subdomains connected by a flexible hinge and bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. The majority of PBP2 proteins function in the uptake of small soluble substrates in eubacteria and archaea. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically-located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. Besides transport proteins, the family includes ionotropic glutamate receptors and unorthodox sensor proteins involved in signal transduction. Pssm-ID: 270248 [Multi-domain] Cd Length: 217 Bit Score: 39.93 E-value: 9.91e-04
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| VitK2_biosynth | pfam02621 | Menaquinone biosynthesis; This family includes two enzymes which are involved in menaquinone ... |
108-280 | 1.10e-03 | ||||||
Menaquinone biosynthesis; This family includes two enzymes which are involved in menaquinone biosynthesis. One which catalyzes the conversion of cyclic de-hypoxanthine futalosine to 1,4-dihydroxy-6-naphthoate, and one which may be involved in the conversion of chorismate to futalosine. These enzymes comprise two domains with alpha/beta structures, a large domain and a small domain. A pocket between the two domains may form the active site, a conserved histidine located within this pocket could be the catalytic base. Pssm-ID: 426881 Cd Length: 252 Bit Score: 39.84 E-value: 1.10e-03
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| TRAP_TAXI | TIGR02122 | TRAP transporter solute receptor, TAXI family; This family is one of at least three major ... |
9-174 | 1.87e-03 | ||||||
TRAP transporter solute receptor, TAXI family; This family is one of at least three major families of extracytoplasmic solute receptor (ESR) for TRAP (Tripartite ATP-independent Periplasmic Transporter) transporters. The others are the DctP (TIGR00787) and SmoM (pfam03480) families. These transporters are secondary (driven by an ion gradient) but composed of three polypeptides, although in some species the 4-TM and 12-TM integral membrane proteins are fused. Substrates for this transporter family are not fully characterized but, besides C4 dicarboxylates, may include mannitol and other compounds. [Transport and binding proteins, Unknown substrate] Pssm-ID: 273982 [Multi-domain] Cd Length: 320 Bit Score: 39.62 E-value: 1.87e-03
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| PBP2_Cae31940 | cd13649 | Substrate binding domain of an uncharacterized protein similar to ABC-type transporter for ... |
45-193 | 1.91e-03 | ||||||
Substrate binding domain of an uncharacterized protein similar to ABC-type transporter for thiamin biosynthetic pathway intermediates; a member of the type 2 periplasmic binding fold superfamily; This subfamily includes the periplamic-binding protein Cae31940 which is phylogenetically similar to the ThiY/THI5 family. ThiY is the periplasmic N-formyl-4-amino-5-(aminomethyl)-2-methylpyrimidine (FAMP) binding component of the ABC transport system (ThiXYZ). FAMP is imported into cell by the transporter, where it is then incorporated into the thiamin biosynthetic pathway. The closest structural homologs of ThiY are THI5, which is responsible for the synthesis of 4-amino-5-(hydroxymethyl)-2-methylpyrimidine phosphate (HMP-P) in the thiamin biosynthetic pathway of eukaryotes, and periplasmic binding proteins involved in alkanesulfonate/nitrate and bicarbonate transport. After binding the ligand, They interact with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. The ThiY/THI5 proteins belong to the PBP2 superfamily of periplasmic binding proteins that differ in size and ligand specificity, but have similar tertiary structures consisting of two globular subdomains connected by a flexible hinge. They have been shown to bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. Pssm-ID: 270367 Cd Length: 223 Bit Score: 39.05 E-value: 1.91e-03
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| OsmF | COG1732 | Periplasmic glycine betaine/choline-binding (lipo)protein of an ABC-type transport system ... |
9-226 | 4.68e-03 | ||||||
Periplasmic glycine betaine/choline-binding (lipo)protein of an ABC-type transport system (osmoprotectant binding protein) [Cell wall/membrane/envelope biogenesis]; Pssm-ID: 441338 [Multi-domain] Cd Length: 294 Bit Score: 38.20 E-value: 4.68e-03
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| PBP2_Ttha1568_Mqnd | cd13635 | A menaquinone biosynthetic enzyme exhibits the type 2 periplasmic-binding protein fold; This ... |
108-226 | 5.06e-03 | ||||||
A menaquinone biosynthetic enzyme exhibits the type 2 periplasmic-binding protein fold; This group includes Ttha1568 (MqnD) from Thermus thermophilies HB8, an enzyme within an alternative menaquinone biosynthetic pathway that catalyzes the conversion of cyclic de-hypoxanthine futalosine to 1,4-dihydroxy-6-naphthoate. Menaquinone (MK; vitamin K) is an essential lipid-soluble carrier that shuttles electrons between membrane-bound protein complexes in the electron transport chain. Ttha1568 has significant structural homology with the members of type 2 periplasmic-binding fold protein superfamily. The PBP2 proteins are typically comprised of two globular subdomains connected by a flexible hinge and bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. Pssm-ID: 270353 Cd Length: 260 Bit Score: 37.88 E-value: 5.06e-03
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| MltF | COG4623 | Membrane-bound lytic murein transglycosylase MltF [Cell wall/membrane/envelope biogenesis, ... |
45-171 | 8.08e-03 | ||||||
Membrane-bound lytic murein transglycosylase MltF [Cell wall/membrane/envelope biogenesis, Signal transduction mechanisms]; Pssm-ID: 443662 [Multi-domain] Cd Length: 421 Bit Score: 37.73 E-value: 8.08e-03
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