Annotations: 1KMI

Domain Annotation: SCOP/SCOPe Classification SCOP Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A [auth Y]	d1kmiy_	Alpha and beta proteins (a/b)	Flavodoxin-like	CheY-like	CheY-related	CheY protein	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
B [auth Z]	d1kmiz_	Coiled coil proteins	Antiparallel coiled-coil	Chemotaxis phosphatase CheZ	Chemotaxis phosphatase CheZ	Chemotaxis phosphatase CheZ	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A [auth Y]	SCOP2B Superfamily	CheY-like	8034311	3001156	SCOP2B (2022-06-29)
B [auth Z]	SCOP2 Family	Chemotaxis phosphatase CheZ	8028103	4002959	SCOP2 (2022-06-29)
B [auth Z]	SCOP2 Superfamily	Chemotaxis phosphatase CheZ	8040482	3001942	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A [auth Y]	PF00072	e1kmiY1	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: CheY-like	F: PF00072	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A [auth Y]	3.40.50.2300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Response regulator	CATH (4.3.0)
B [auth Z]	1.20.5.590	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces	Single helix bin	CATH (4.3.0)
B [auth Z]	1.10.287.500	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	Helix hairpin bin	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth Y]	PF00072	Response regulator receiver domain (Response_reg)	Response regulator receiver domain	This domain receives the signal from the sensor partner in bacterial two-component systems. It is usually found N-terminal to a DNA binding effector domain.	Domain
B [auth Z]	PF04344	Chemotaxis phosphatase, CheZ (CheZ)	Chemotaxis phosphatase, CheZ	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth Y]	Chemotaxis protein cheY	cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding acetyltransferase activity acyltransferase activity acyltransferase activity, transferring groups other than amino-acyl groups transferase activity catalytic activity molecular transducer activity phosphorelay response regulator activity	cell swimming cellular process bacterial-type flagellum-dependent cell motility bacterial-type flagellum-dependent swimming motility cell motility archaeal or bacterial-type flagellum-dependent cell motility cilium or flagellum-dependent cell motility chemotaxis response to stimulus taxis response to chemical response to external stimulus locomotion cellular response to stimulus cell swimming cellular process bacterial-type flagellum-dependent cell motility bacterial-type flagellum-dependent swimming motility cell motility archaeal or bacterial-type flagellum-dependent cell motility cilium or flagellum-dependent cell motility chemotaxis response to stimulus taxis response to chemical response to external stimulus locomotion cellular response to stimulus regulation of biological process phosphorelay signal transduction system regulation of cellular process signaling biological regulation intracellular signal transduction cell communication signal transduction regulation of response to external stimulus regulation of chemotaxis regulation of response to stimulus regulation of locomotion aerotaxis energy taxis regulation of bacterial-type flagellum-dependent cell motility regulation of cell motility peptidyl-lysine acetylation organonitrogen compound metabolic process peptidyl-lysine modification primary metabolic process protein acylation protein acetylation organic substance metabolic process internal peptidyl-lysine acetylation macromolecule modification peptidyl-amino acid modification nitrogen compound metabolic process metabolic process protein metabolic process macromolecule metabolic process protein modification process internal protein amino acid acetylation thermotaxis response to abiotic stimulus response to temperature stimulus	cell projection organelle cellular anatomical entity bacterial-type flagellum non-membrane-bounded organelle bacterial-type flagellum basal body bacterial-type flagellum motor bacterial-type flagellum rotor complex intracellular anatomical structure cytoplasm cytosol bacterial-type flagellum basal body, C ring
B [auth Z]	Chemotaxis protein cheZ	phosphoric ester hydrolase activity phosphoprotein phosphatase activity catalytic activity, acting on a protein hydrolase activity, acting on ester bonds phosphatase activity hydrolase activity catalytic activity identical protein binding protein binding binding	chemotaxis response to stimulus taxis response to chemical response to external stimulus locomotion regulation of bacterial-type flagellum-dependent cell motility regulation of biological process regulation of cell motility regulation of cellular process biological regulation archaeal or bacterial-type flagellum-dependent cell motility cilium or flagellum-dependent cell motility regulation of locomotion chemotaxis response to stimulus taxis response to chemical response to external stimulus locomotion regulation of bacterial-type flagellum-dependent cell motility regulation of biological process regulation of cell motility regulation of cellular process biological regulation archaeal or bacterial-type flagellum-dependent cell motility cilium or flagellum-dependent cell motility regulation of locomotion cellular process bacterial-type flagellum-dependent cell motility cell motility regulation of response to external stimulus regulation of chemotaxis regulation of response to stimulus bacterial-type flagellum-dependent swarming motility	intracellular anatomical structure cytoplasm cellular anatomical entity cytosol cell projection organelle bacterial-type flagellum non-membrane-bounded organelle protein-containing complex methyl accepting chemotaxis protein complex cell periphery plasma membrane membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth Y]	IPR011006	CheY-like superfamily	Homologous Superfamily
A [auth Y]	IPR001789	Signal transduction response regulator, receiver domain	Domain
B [auth Z]	IPR007439	Chemotaxis phosphatase, CheZ	Family

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.