Annotations: 3VP5

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	TetR-C_39	e3vp5A3	A: alpha bundles	X: Fusion glycoprotein F2	H: HTH	T: winged helix domain	F: TetR-C_39	ECOD (develop294)

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	-	-

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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.