Annotations: 2YFA

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Cluster II chemoreceptors, ligand-binding domain	8018608	4004017	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Chemoreceptors, ligand-binding domain	8018609	3001511	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Chemoreceptors, ligand-binding domain	8018610	3001511	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	Chemoreceptors, ligand-binding domain	8018610	3001511	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Chemoreceptors, ligand-binding domain	8018609	3001511	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Chemoreceptors, ligand-binding domain	8018610	3001511	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)
A	HBM_N	e2yfaA1	A: alpha bundles	X: Four-helical up-and-down bundle	H: Cytochromes (From Topology)	T: Cytochromes	F: HBM_N	ECOD (1.6)
A	HBM_C	e2yfaA2	A: alpha bundles	X: Four-helical up-and-down bundle	H: Histidine kinase associated sensor domains (From Topology)	T: Histidine kinase associated sensor domains	F: HBM_C	ECOD (1.6)
B	HBM_N	e2yfaB2	A: alpha bundles	X: Four-helical up-and-down bundle	H: Cytochromes (From Topology)	T: Cytochromes	F: HBM_N	ECOD (1.6)
B	HBM_C	e2yfaB1	A: alpha bundles	X: Four-helical up-and-down bundle	H: Histidine kinase associated sensor domains (From Topology)	T: Histidine kinase associated sensor domains	F: HBM_C	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.1440.210	Mainly Alpha	Up-down Bundle	de novo design (two linked rop proteins)		CATH (4.3.0)
B	1.20.1440.210	Mainly Alpha	Up-down Bundle	de novo design (two linked rop proteins)		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF16591	Helical bimodular sensor domain (HBM)	Helical bimodular sensor domain	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	METHYL-ACCEPTING CHEMOTAXIS TRANSDUCER	molecular transducer activity transmembrane signaling receptor activity signaling receptor activity	chemotaxis response to stimulus taxis response to chemical response to external stimulus locomotion cellular response to stimulus regulation of biological process regulation of cellular process signaling biological regulation cellular process signal transduction cell communication	cell periphery cellular anatomical structure plasma membrane membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR004090	Chemotaxis methyl-accepting receptor	Family
A, B	IPR003660	HAMP domain	Domain
A, B	IPR032255	Helical bimodular sensor domain	Domain
A, B	IPR004089	Methyl-accepting chemotaxis protein (MCP) signalling domain	Domain

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.