Annotations: 4R22

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A [auth B]	PF13411	e4r22B1	A: alpha arrays	X: HTH	H: HTH	T: Putative DNA-binding domain	F: PF13411	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A [auth B]	1.10.1660.10	Mainly Alpha	Orthogonal Bundle	Multidrug-efflux Transporter Regulator	Chain: A	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth B]	PF13411	MerR HTH family regulatory protein (MerR_1)	MerR HTH family regulatory protein	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth B]	HTH-type transcriptional regulator TnrA	DNA binding binding organic cyclic compound binding nucleic acid binding transcription regulator activity DNA-binding transcription factor activity	cellular response to stimulus cellular response to nitrogen compound regulation of response to nutrient levels response to organic substance regulation of cellular process response to stimulus nitrogen catabolite regulation of transcription regulation of nitrogen utilization positive regulation of macromolecule biosynthetic process regulation of primary metabolic process nucleobase-containing compound metabolic process positive regulation of metabolic process DNA-templated transcription regulation of RNA metabolic process intracellular nitrogen homeostasis cellular response to stimulus cellular response to nitrogen compound regulation of response to nutrient levels response to organic substance regulation of cellular process response to stimulus nitrogen catabolite regulation of transcription regulation of nitrogen utilization positive regulation of macromolecule biosynthetic process regulation of primary metabolic process nucleobase-containing compound metabolic process positive regulation of metabolic process DNA-templated transcription regulation of RNA metabolic process intracellular nitrogen homeostasis organic substance biosynthetic process positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process regulation of biological process positive regulation of nucleobase-containing compound metabolic process response to organonitrogen compound cellular metabolic process primary metabolic process regulation of cellular metabolic process response to nitrogen compound positive regulation of RNA metabolic process organic cyclic compound metabolic process regulation of gene expression cellular response to nutrient levels cellular response to organonitrogen compound biosynthetic process chemical homeostasis regulation of response to stimulus response to chemical organic cyclic compound biosynthetic process metabolic process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of DNA-templated transcription regulation of metabolic process response to nutrient levels homeostatic process positive regulation of DNA-templated transcription cellular biosynthetic process positive regulation of biological process RNA metabolic process positive regulation of cellular metabolic process RNA biosynthetic process nucleic acid biosynthetic process cellular response to endogenous stimulus organic substance metabolic process positive regulation of biosynthetic process nitrogen catabolite activation of transcription intracellular chemical homeostasis cellular response to organic substance positive regulation of cellular process regulation of RNA biosynthetic process regulation of biosynthetic process response to endogenous stimulus biological regulation response to nutrient nitrogen utilization regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of cellular biosynthetic process cellular response to chemical stimulus cellular homeostasis positive regulation of RNA biosynthetic process cellular process cellular response to nutrient positive regulation of cellular biosynthetic process cellular response to nitrogen levels	-
B [auth G]	DNA (5'-D(CPGPTPGPTPAPAPGPGPAPAPTPTPCPTPGPAPCPAPCP*G)-3')	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth B]	IPR009061	Putative DNA-binding domain superfamily	Homologous Superfamily
A [auth B]	IPR047057	MerR transcriptional regulator	Family
A [auth B]	IPR000551	MerR-type HTH domain	Domain

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.