methyl-accepting chemotaxis protein (MCP) is a bacterial receptor that mediates chemotaxis to diverse signals, responding to changes in the concentration of attractants and repellents in the environment by altering swimming behavior
first PDC (PhoQ/DcuS/CitA) domain of methyl-accepting chemotaxis proteins, diguanylate-cyclase ...
414-540
3.48e-10
first PDC (PhoQ/DcuS/CitA) domain of methyl-accepting chemotaxis proteins, diguanylate-cyclase and similar domains; Histidine kinase (HK) receptors are part of two-component systems (TCS) in bacteria that play a critical role for sensing and adapting to environmental changes. Typically, HK receptors contain an extracellular sensing domain flanked by two transmembrane helices, an intracellular dimerization histidine phosphorylation domain (DHp), and a C-terminal kinase domain, with many variations on this theme. HK receptors in this family contain double PDC (PhoQ/DcuS/CitA) sensor domains. Signals detected by the sensor domain are transmitted through DHp to the kinase domain, resulting in the phosphorylation of a conserved histidine residue in DHp; phosphotransfer to a conserved aspartate in its cognate response regulator (RR) follows, which leads to the activation of genes for downstream cellular responses. The HK family includes not just histidine kinase receptors but also sensors for chemotaxis proteins and diguanylate cyclase receptors, implying a combinatorial molecular evolution.
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Pssm-ID: 350341 [Multi-domain] Cd Length: 125 Bit Score: 57.96 E-value: 3.48e-10
Methyl-accepting chemotaxis-like domains (chemotaxis sensory transducer); Thought to undergo ...
146-407
9.75e-47
Methyl-accepting chemotaxis-like domains (chemotaxis sensory transducer); Thought to undergo reversible methylation in response to attractants or repellants during bacterial chemotaxis.
Pssm-ID: 214599 [Multi-domain] Cd Length: 262 Bit Score: 164.00 E-value: 9.75e-47
Methyl-accepting chemotaxis protein (MCP), signaling domain; Methyl-accepting chemotaxis ...
173-370
1.98e-37
Methyl-accepting chemotaxis protein (MCP), signaling domain; Methyl-accepting chemotaxis proteins (MCPs or chemotaxis receptors) are an integral part of the transmembrane protein complex that controls bacterial chemotaxis, together with the histidine kinase CheA, the receptor-coupling protein CheW, receptor-modification enzymes, and localized phosphatases. MCPs contain a four helix trans membrane region, an N-terminal periplasmic ligand binding domain, and a C-terminal HAMP domain followed by a cytoplasmic signaling domain. This C-terminal signaling domain dimerizes into a four-helix bundle and interacts with CheA through the adaptor protein CheW.
Pssm-ID: 206779 [Multi-domain] Cd Length: 200 Bit Score: 136.98 E-value: 1.98e-37
Methyl-accepting chemotaxis protein (MCP) signalling domain; This domain is thought to ...
229-375
4.12e-23
Methyl-accepting chemotaxis protein (MCP) signalling domain; This domain is thought to transduce the signal to CheA since it is highly conserved in very diverse MCPs.
Pssm-ID: 333767 [Multi-domain] Cd Length: 172 Bit Score: 96.35 E-value: 4.12e-23
first PDC (PhoQ/DcuS/CitA) domain of methyl-accepting chemotaxis proteins, diguanylate-cyclase ...
414-540
3.48e-10
first PDC (PhoQ/DcuS/CitA) domain of methyl-accepting chemotaxis proteins, diguanylate-cyclase and similar domains; Histidine kinase (HK) receptors are part of two-component systems (TCS) in bacteria that play a critical role for sensing and adapting to environmental changes. Typically, HK receptors contain an extracellular sensing domain flanked by two transmembrane helices, an intracellular dimerization histidine phosphorylation domain (DHp), and a C-terminal kinase domain, with many variations on this theme. HK receptors in this family contain double PDC (PhoQ/DcuS/CitA) sensor domains. Signals detected by the sensor domain are transmitted through DHp to the kinase domain, resulting in the phosphorylation of a conserved histidine residue in DHp; phosphotransfer to a conserved aspartate in its cognate response regulator (RR) follows, which leads to the activation of genes for downstream cellular responses. The HK family includes not just histidine kinase receptors but also sensors for chemotaxis proteins and diguanylate cyclase receptors, implying a combinatorial molecular evolution.
Pssm-ID: 350341 [Multi-domain] Cd Length: 125 Bit Score: 57.96 E-value: 3.48e-10
Cache domain; Double cache domain 1 covers the last three strands from the membrane distal ...
425-542
7.94e-04
Cache domain; Double cache domain 1 covers the last three strands from the membrane distal PAS-like domain, the first two strands of the membrane proximal domain, and the connecting elements between the two domains. This domain when present in chemoreceptors recognize several signals such as proteinogenic amino acids, GABA, Histamine and polyamines, decanoic acid, Autoinducer-2, purine derivatives, quaternary amines, citrate and taurine, among others. When associated with histidine kinases, it recognizes C3/C4-dicarboxylic acids, Spermine, guanosine and Autoinducer-2 (Mantilla et al., FEMS Microbiology Reviews, fuab043, 45, 2021, 1 https://doi.org/10.1093/femsre/fuab043).
Pssm-ID: 460673 [Multi-domain] Cd Length: 237 Bit Score: 41.17 E-value: 7.94e-04
Methyl-accepting chemotaxis-like domains (chemotaxis sensory transducer); Thought to undergo ...
146-407
9.75e-47
Methyl-accepting chemotaxis-like domains (chemotaxis sensory transducer); Thought to undergo reversible methylation in response to attractants or repellants during bacterial chemotaxis.
Pssm-ID: 214599 [Multi-domain] Cd Length: 262 Bit Score: 164.00 E-value: 9.75e-47
Methyl-accepting chemotaxis protein (MCP), signaling domain; Methyl-accepting chemotaxis ...
173-370
1.98e-37
Methyl-accepting chemotaxis protein (MCP), signaling domain; Methyl-accepting chemotaxis proteins (MCPs or chemotaxis receptors) are an integral part of the transmembrane protein complex that controls bacterial chemotaxis, together with the histidine kinase CheA, the receptor-coupling protein CheW, receptor-modification enzymes, and localized phosphatases. MCPs contain a four helix trans membrane region, an N-terminal periplasmic ligand binding domain, and a C-terminal HAMP domain followed by a cytoplasmic signaling domain. This C-terminal signaling domain dimerizes into a four-helix bundle and interacts with CheA through the adaptor protein CheW.
Pssm-ID: 206779 [Multi-domain] Cd Length: 200 Bit Score: 136.98 E-value: 1.98e-37
Methyl-accepting chemotaxis protein (MCP) signalling domain; This domain is thought to ...
229-375
4.12e-23
Methyl-accepting chemotaxis protein (MCP) signalling domain; This domain is thought to transduce the signal to CheA since it is highly conserved in very diverse MCPs.
Pssm-ID: 333767 [Multi-domain] Cd Length: 172 Bit Score: 96.35 E-value: 4.12e-23
first PDC (PhoQ/DcuS/CitA) domain of methyl-accepting chemotaxis proteins, diguanylate-cyclase ...
414-540
3.48e-10
first PDC (PhoQ/DcuS/CitA) domain of methyl-accepting chemotaxis proteins, diguanylate-cyclase and similar domains; Histidine kinase (HK) receptors are part of two-component systems (TCS) in bacteria that play a critical role for sensing and adapting to environmental changes. Typically, HK receptors contain an extracellular sensing domain flanked by two transmembrane helices, an intracellular dimerization histidine phosphorylation domain (DHp), and a C-terminal kinase domain, with many variations on this theme. HK receptors in this family contain double PDC (PhoQ/DcuS/CitA) sensor domains. Signals detected by the sensor domain are transmitted through DHp to the kinase domain, resulting in the phosphorylation of a conserved histidine residue in DHp; phosphotransfer to a conserved aspartate in its cognate response regulator (RR) follows, which leads to the activation of genes for downstream cellular responses. The HK family includes not just histidine kinase receptors but also sensors for chemotaxis proteins and diguanylate cyclase receptors, implying a combinatorial molecular evolution.
Pssm-ID: 350341 [Multi-domain] Cd Length: 125 Bit Score: 57.96 E-value: 3.48e-10
first PDC (PhoQ/DcuS/CitA) domain of diguanylate-cyclase and similar domains; Members of this ...
412-529
3.68e-07
first PDC (PhoQ/DcuS/CitA) domain of diguanylate-cyclase and similar domains; Members of this subfamily display varying domain architectures but all contain double PDC (PhoQ/DcuS/CitA) sensor domains. This model represents the first PDC domain of Diguanylate-cyclases (DGCs), Histidine kinases (HKs), and other similar domains. Many members of this subfamily contain a C-terminal DGC (also called GGDEF) domain. DGCs regulate the turnover of cyclic diguanosine monophosphate. HK receptors are part of two-component systems (TCS) in bacteria that play a critical role for sensing and adapting to environmental changes. Typically, HK receptors contain an extracellular sensing domain flanked by two transmembrane helices, an intracellular dimerization histidine phosphorylation domain (DHp), and a C-terminal kinase domain, with many variations on this theme. In the case of HKs, signals detected by the sensor domain are transmitted through DHp to the kinase domain, resulting in the phosphorylation of a conserved histidine residue in DHp; phosphotransfer to a conserved aspartate in its cognate response regulator (RR) follows, which leads to the activation of genes for downstream cellular responses.
Pssm-ID: 350339 Cd Length: 123 Bit Score: 48.92 E-value: 3.68e-07
Cache domain; Double cache domain 1 covers the last three strands from the membrane distal ...
425-542
7.94e-04
Cache domain; Double cache domain 1 covers the last three strands from the membrane distal PAS-like domain, the first two strands of the membrane proximal domain, and the connecting elements between the two domains. This domain when present in chemoreceptors recognize several signals such as proteinogenic amino acids, GABA, Histamine and polyamines, decanoic acid, Autoinducer-2, purine derivatives, quaternary amines, citrate and taurine, among others. When associated with histidine kinases, it recognizes C3/C4-dicarboxylic acids, Spermine, guanosine and Autoinducer-2 (Mantilla et al., FEMS Microbiology Reviews, fuab043, 45, 2021, 1 https://doi.org/10.1093/femsre/fuab043).
Pssm-ID: 460673 [Multi-domain] Cd Length: 237 Bit Score: 41.17 E-value: 7.94e-04
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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