Annotations: 3VOK

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	TetR_N	e3vokA1	A: alpha arrays	X: HTH	H: HTH	T: tri-helical	F: TetR_N	ECOD (1.6)
A	EUF08063	e3vokA2	A: alpha bundles	X: Tetracyclin repressor-like, C-terminal domain (From Topology)	H: Tetracyclin repressor-like, C-terminal domain (From Topology)	T: Tetracyclin repressor-like, C-terminal domain	F: EUF08063	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.357.10	Mainly Alpha	Orthogonal Bundle	Tetracycline Repressor	domain 2	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF21626	Tetracyclin repressor, C-terminal domain (TetR-C_39)	Tetracyclin repressor, C-terminal domain	This domain is found at the C-terminal end of Transcriptional regulator from Lactococcus lactis (YgfC, also known as heme- regulated transporter regulator, HrtR) and similar proteins predominantly from firmicutes. YgfC senses and binds a heme molecul ...	This domain is found at the C-terminal end of Transcriptional regulator from Lactococcus lactis (YgfC, also known as heme- regulated transporter regulator, HrtR) and similar proteins predominantly from firmicutes. YgfC senses and binds a heme molecule to regulate the expression of the heme-efflux system responsible for heme homeostasis in this bacteria. This member of the TetR family of transcriptional regulators shows two helical domains and adopts a dimeric configuration [1]. This entry represents the heme-sensing (heme-binding) domain, which contains the alpha-helices that form the four-helix bundle that constitutes a dimer interface.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Transcriptional regulator	DNA binding binding nucleic acid binding cation binding ion binding metal ion binding small molecule binding	-	-
B [auth U]	5'-D(APTPGPAPCPAPCPTPGPTPGPTPCPAP*T)-3'	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR009057	Homedomain-like superfamily	Homologous Superfamily
A	IPR049443	Tetracyclin repressor YgfC-like, C-terminal domain	Domain
A	IPR001647	DNA-binding HTH domain, TetR-type	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.