Annotations: 2K1O

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF16777	e2k1oA1	A: alpha arrays	X: HTH	H: HTH	T: Ribbon-helix-helix	F: PF16777	ECOD (1.6)
B	PF16777	e2k1oB1	A: alpha arrays	X: HTH	H: HTH	T: Ribbon-helix-helix	F: PF16777	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.1220.10	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant	Met repressor-like	CATH (4.3.0)
B	1.10.1220.10	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant	Met repressor-like	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF16777	Transcriptional regulator, RHH-like, CopG (RHH_7)	Transcriptional regulator, RHH-like, CopG	RHH_7 is a ribbon-helix-helix protein family expressed by Helicobacter species. These proteins bind to specific DNA sequences with high affinity and usually act as repressors. Many are putatively named CopG [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Putative	-	regulation of cellular process cellular biosynthetic process RNA metabolic process regulation of primary metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process DNA-templated transcription regulation of RNA metabolic process organic substance metabolic process organic substance biosynthetic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of biosynthetic process regulation of cellular process cellular biosynthetic process RNA metabolic process regulation of primary metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process DNA-templated transcription regulation of RNA metabolic process organic substance metabolic process organic substance biosynthetic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of biosynthetic process regulation of biological process cellular metabolic process biological regulation primary metabolic process regulation of cellular metabolic process regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of cellular biosynthetic process organic cyclic compound metabolic process regulation of gene expression biosynthetic process organic cyclic compound biosynthetic process metabolic process regulation of macromolecule biosynthetic process cellular process regulation of DNA-templated transcription macromolecule metabolic process regulation of metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR013321	Arc-type ribbon-helix-helix	Homologous Superfamily
A, B	IPR031895	RHH transcriptional regulator CopG	Family
A, B	IPR010985	Ribbon-helix-helix	Homologous Superfamily

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 R01GM133198.