Annotations: 3QTA

Crystal structure of a CheC-like protein (rrnAC0528) from Haloarcula marismortui ATCC 43049 at 2.00 A resolution

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2 Family	CheC-like	8049107	4001417	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	CheC-like	8091079	3001525	SCOP2 (2022-06-29)
A	SCOP2B Superfamily	CheC-like	8091079	3001525	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Globin	e3qtaB1	A: beta barrels	X: Lipocalins/Streptavidin	H: Zn-dependent exopeptidases	T: Zn-dependent exopeptidases	F: Globin	ECOD (v294.2)
A	Cons_hypoth95	e3qtaA1	A: beta barrels	X: N-terminal beta-sandwich domain in anthrax protective antigen	H: N-terminal beta-sandwich domain in anthrax protective antigen	T: N-terminal beta-sandwich domain in anthrax protective antigen	F: Cons_hypoth95	ECOD (v294.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.40.1550.10	Alpha Beta	3-Layer(aba) Sandwich	Chemotaxis protein chec	CheC-like	CATH (4.3.0)
A	3.40.1550.10	Alpha Beta	3-Layer(aba) Sandwich	Chemotaxis protein chec	CheC-like	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF13690	Chemotaxis phosphatase CheX (CheX)	Chemotaxis phosphatase CheX	CheX is very closely related to the CheC chemotaxis phosphatase, but it dimerises in a different way, via a continuous beta sheet between the subunits. CheC and CheX both dephosphorylate CheY, although CheC requires binding of CheD to achieve the act ...	CheX is very closely related to the CheC chemotaxis phosphatase, but it dimerises in a different way, via a continuous beta sheet between the subunits. CheC and CheX both dephosphorylate CheY, although CheC requires binding of CheD to achieve the activity of CheX. The ability of bacteria to modulate their swimming behaviour in the presence of external chemicals (nutrients and repellents) is one of the most rudimentary behavioural responses known, but the the individual components are very sensitively tuned [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Chemotaxis protein CheC	hydrolase activity catalytic activity cation binding ion binding binding metal ion binding small molecule binding	chemotaxis response to stimulus taxis response to chemical response to external stimulus locomotion	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR050992	Bacterial chemotaxis CheZ family phosphatases	Family
A, B	IPR028976	CheC-like superfamily	Homologous Superfamily
A, B	IPR028051	Chemotaxis phosphatase CheX-like domain	Domain

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RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.