phosphate ABC transporter substrate-binding protein PstS is part of the ABC transporter complex PstSACB involved in phosphate import and it functions as the initial receptor for phosphate
phosphate ABC transporter, phosphate-binding protein; This family represents one type of ...
29-335
2.56e-142
phosphate ABC transporter, phosphate-binding protein; This family represents one type of (periplasmic, in Gram-negative bacteria) phosphate-binding protein found in phosphate ABC (ATP-binding cassette) transporters. This protein is accompanied, generally in the same operon, by an ATP binding protein and (usually) two permease proteins. [Transport and binding proteins, Anions]
Pssm-ID: 273374 [Multi-domain] Cd Length: 313 Bit Score: 405.29 E-value: 2.56e-142
Substrate binding domain of ABC-type phosphate transporter, a member of the type 2 ...
26-317
1.83e-125
Substrate binding domain of ABC-type phosphate transporter, a member of the type 2 periplasmic-binding fold superfamily; This phosphate-binding domain shows significant homology to the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 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 two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.
Pssm-ID: 270227 [Multi-domain] Cd Length: 253 Bit Score: 360.04 E-value: 1.83e-125
phosphate ABC transporter, phosphate-binding protein; This family represents one type of ...
29-335
2.56e-142
phosphate ABC transporter, phosphate-binding protein; This family represents one type of (periplasmic, in Gram-negative bacteria) phosphate-binding protein found in phosphate ABC (ATP-binding cassette) transporters. This protein is accompanied, generally in the same operon, by an ATP binding protein and (usually) two permease proteins. [Transport and binding proteins, Anions]
Pssm-ID: 273374 [Multi-domain] Cd Length: 313 Bit Score: 405.29 E-value: 2.56e-142
Substrate binding domain of ABC-type phosphate transporter, a member of the type 2 ...
26-317
1.83e-125
Substrate binding domain of ABC-type phosphate transporter, a member of the type 2 periplasmic-binding fold superfamily; This phosphate-binding domain shows significant homology to the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 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 two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.
Pssm-ID: 270227 [Multi-domain] Cd Length: 253 Bit Score: 360.04 E-value: 1.83e-125
Substrate binding domain of ABC-type phosphate transporter, a member of the type 2 ...
27-317
4.41e-122
Substrate binding domain of ABC-type phosphate transporter, a member of the type 2 periplasmic-binding fold superfamily; This subfamily contians phosphate binding domain found in PstS proteins that serve as initial receptors in the ABC transport of phosphate in eubacteria and archaea. After binding the ligand, PstS 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 PstS 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: 270283 [Multi-domain] Cd Length: 254 Bit Score: 351.53 E-value: 4.41e-122
Substrate binding domain of putative ABC-type phosphate transporter, a member of the type 2 ...
27-305
4.05e-28
Substrate binding domain of putative ABC-type phosphate transporter, a member of the type 2 periplasmic binding fold superfamily; This subfamily contains uncharacterized phosphate binding domains found in PstS proteins that serve as initial receptors in the ABC transport of phosphate in eubacteria and archaea. After binding the ligand, PstS 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 PstS 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: 270371 [Multi-domain] Cd Length: 240 Bit Score: 109.58 E-value: 4.05e-28
phosphate binding protein; Members of this family are phosphate-binding proteins. Most are ...
25-318
2.94e-25
phosphate binding protein; Members of this family are phosphate-binding proteins. Most are found in phosphate ABC-transporter operons, but some are found in phosphate regulatory operons. This model separates members of the current family from the phosphate ABC transporter phosphate binding protein described by TIGRFAMs model TIGR00975. [Transport and binding proteins, Anions]
Pssm-ID: 273991 [Multi-domain] Cd Length: 287 Bit Score: 102.90 E-value: 2.94e-25
Substrate binding domain of putative ABC-type phosphate transporter, a member of the type 2 ...
27-251
7.93e-25
Substrate binding domain of putative ABC-type phosphate transporter, a member of the type 2 periplasmic binding fold superfamily; This subfamily contains uncharacterized phosphate binding domains found in PstS proteins that serve as initial receptors in the ABC transport of phosphate in eubacteria and archaea. After binding the ligand, PstS 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 PstS 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: 270284 [Multi-domain] Cd Length: 245 Bit Score: 100.74 E-value: 7.93e-25
Type 2 periplasmic binding fold superfamily; This evolutionary model and hierarchy represent ...
29-234
3.28e-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: 50.26 E-value: 3.28e-07
Substrate binding domain of putative ABC-type phosphate transporter, a member of the type 2 ...
38-248
6.92e-06
Substrate binding domain of putative ABC-type phosphate transporter, a member of the type 2 periplasmic binding fold superfamily; This subfamily contains uncharacterized phosphate binding domains found in PstS proteins that serve as initial receptors in the ABC transport of phosphate in eubacteria and archaea. After binding the ligand, PstS 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 PstS 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: 270372 Cd Length: 259 Bit Score: 46.86 E-value: 6.92e-06
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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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.
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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.
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