Annotations: 1CMA

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
D [auth B]	d1cmab_	All alpha proteins	Ribbon-helix-helix	Ribbon-helix-helix	Met repressor, MetJ (MetR)	Met repressor, MetJ (MetR)	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
C [auth A]	d1cmaa_	All alpha proteins	Ribbon-helix-helix	Ribbon-helix-helix	Met repressor, MetJ (MetR)	Met repressor, MetJ (MetR)	(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)
D [auth B]	SCOP2B Superfamily	Ribbon-helix-helix	8037436	3000295	SCOP2B (2022-06-29)
C [auth A]	SCOP2B Superfamily	Ribbon-helix-helix	8037436	3000295	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)
D [auth B]	PutA_1st	e1cmaB1	A: a/b three-layered sandwiches	X: ETN0001 domain-like	H: YozE-like	T: Ribbon-helix-helix	F: PutA_1st	ECOD (v294.1)
C [auth A]	PutA_1st	e1cmaA1	A: a/b three-layered sandwiches	X: ETN0001 domain-like	H: YozE-like	T: Ribbon-helix-helix	F: PutA_1st	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
D [auth B]	1.10.140.10	Mainly Alpha	Orthogonal Bundle	MET Apo-Repressor, subunit A	MET Apo-Repressor, subunit A	CATH (4.3.0)
C [auth A]	1.10.140.10	Mainly Alpha	Orthogonal Bundle	MET Apo-Repressor, subunit A	MET Apo-Repressor, subunit A	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
C [auth A], D [auth B]	PF01340	Met Apo-repressor, MetJ (MetJ)	Met Apo-repressor, MetJ		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C [auth A], D [auth B]	PROTEIN (MET REPRESSOR)	DNA binding binding nucleic acid binding transcription regulator activity DNA-binding transcription factor activity	regulation of cellular process negative regulation of biological process RNA metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process regulation of RNA metabolic process negative regulation of cellular process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of cellular process negative regulation of biological process RNA metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process regulation of RNA metabolic process negative regulation of cellular process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process negative regulation of macromolecule metabolic process regulation of biosynthetic process negative regulation of DNA-templated transcription regulation of biological process negative regulation of metabolic process biological regulation primary metabolic process regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of gene expression biosynthetic process negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process metabolic process cellular process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of DNA-templated transcription regulation of metabolic process negative regulation of RNA metabolic process	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol
B [auth D]	DNA (5'-D(APGPAPCPGPTPCPTP*A)-3')	-	-	-
A [auth C]	DNA (5'-D(TPTPAPGPAPCPGPTPCPT)-3')	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C [auth A], D [auth B]	IPR023453	Methionine repressor MetJ domain superfamily	Homologous Superfamily
C [auth A], D [auth B]	IPR010985	Ribbon-helix-helix	Homologous Superfamily
C [auth A], D [auth B]	IPR002084	Methionine repressor MetJ	Family

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.