Annotations: 1AF7

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1af7a1	All alpha proteins	Chemotaxis receptor methyltransferase CheR, N-terminal domain	Chemotaxis receptor methyltransferase CheR, N-terminal domain	Chemotaxis receptor methyltransferase CheR, N-terminal domain	Chemotaxis receptor methyltransferase CheR, N-terminal domain	(Salmonella enterica subsp. enterica serovar Typhimurium ) [TaxId: 90371 ],	SCOPe (2.08)
A	d1af7a2	Alpha and beta proteins (a/b)	S-adenosyl-L-methionine-dependent methyltransferases	S-adenosyl-L-methionine-dependent methyltransferases	Chemotaxis receptor methyltransferase CheR, C-terminal domain	Chemotaxis receptor methyltransferase CheR, C-terminal domain	(Salmonella enterica subsp. enterica serovar Typhimurium ) [TaxId: 90371 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Chemotaxis receptor methyltransferase CheR C-terminal domain	8019901	4000667	SCOP2 (2022-06-29)
A	SCOP2 Family	Chemotaxis receptor methyltransferase CheR N-terminal domain	8025313	4001016	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	S-adenosyl-L-methionine-dependent methyltransferases	8032281	3000118	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Chemotaxis receptor methyltransferase CheR N-terminal domain	8037692	3000459	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	PF03705	e1af7A1	A: alpha arrays	X: Chemotaxis receptor methyltransferase CheR, N-terminal domain (From Topology)	H: Chemotaxis receptor methyltransferase CheR, N-terminal domain (From Topology)	T: Chemotaxis receptor methyltransferase CheR, N-terminal domain	F: PF03705	ECOD (1.6)
A	PF01739	e1af7A2	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: S-adenosyl-L-methionine-dependent methyltransferases	F: PF01739	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.155.10	Mainly Alpha	Orthogonal Bundle	Chemotaxis Receptor Methyltransferase Cher	domain 1	CATH (4.3.0)
A	3.40.50.150	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Vaccinia Virus protein VP39	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF03705	CheR methyltransferase, all-alpha domain (CheR_N)	CheR methyltransferase, all-alpha domain	CheR proteins are part of the chemotaxis signaling mechanism in bacteria. CheR methylates the chemotaxis receptor at specific glutamate residues. CheR is an S-adenosylmethionine- dependent methyltransferase.	Domain
A	PF01739	CheR methyltransferase, SAM binding domain (CheR)	CheR methyltransferase, SAM binding domain	CheR proteins are part of the chemotaxis signaling mechanism in bacteria. CheR methylates the chemotaxis receptor at specific glutamate residues. CheR is an S-adenosylmethionine- dependent methyltransferase - the C-terminal domain (this one) binds SA ...	CheR proteins are part of the chemotaxis signaling mechanism in bacteria. CheR methylates the chemotaxis receptor at specific glutamate residues. CheR is an S-adenosylmethionine- dependent methyltransferase - the C-terminal domain (this one) binds SAM.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	CHEMOTAXIS RECEPTOR METHYLTRANSFERASE CHER	O-methyltransferase activity catalytic activity, acting on a protein transferase activity, transferring one-carbon groups transferase activity S-adenosylmethionine-dependent methyltransferase activity carboxyl-O-methyltransferase activity protein carboxyl O-methyltransferase activity protein methyltransferase activity protein-glutamate O-methyltransferase activity methyltransferase activity catalytic activity	methylation metabolic process 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	IPR026024	Chemotaxis protein methyltransferase CheR	Family
A	IPR000780	MCP methyltransferase, CheR-type	Domain
A	IPR022641	Chemotaxis receptor methyltransferase CheR, N-terminal	Domain
A	IPR036804	Chemotaxis receptor methyltransferase CheR, N-terminal domain superfamily	Homologous Superfamily
A	IPR029063	S-adenosyl-L-methionine-dependent methyltransferase superfamily	Homologous Superfamily
A	IPR022642	MCP methyltransferase, CheR-type, SAM-binding domain, C-terminal	Domain

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

Chains	Enzyme Name	Description	Catalytic Residues
A	protein-glutamate O-methyltransferase M-CSA #392	CheR is a methyltransferase involved in methylation of the membrane-bound methyl-accepting chemotaxis proteins (MCP) to form gamma-glutamyl methyl ester residues. This reaction is important for modulating a bacterium's response to a gradient of attractant or repellent.	Defined by 2 residues: ARG:A-43 [auth A-53]ASP:A-144 [auth A-154] \| Explore in 3D: M-CSA Motif Definition Search M-CSA Motif EC: 2.1.1.80 (PDB Primary Data) Search M-CSA Motif + EC 2.1.1.80

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.