Annotations: 3ANG

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A [auth C]	PF00440	e3angC1	A: alpha arrays	X: HTH	H: HTH	T: tri-helical	F: PF00440	ECOD (1.6)
A [auth C]	PF21776	e3angC2	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: PF21776	ECOD (1.6)
B [auth A]	PF00440	e3angA1	A: alpha arrays	X: HTH	H: HTH	T: tri-helical	F: PF00440	ECOD (1.6)
B [auth A]	PF21776	e3angA2	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: PF21776	ECOD (1.6)
D [auth B]	PF00440	e3angB1	A: alpha arrays	X: HTH	H: HTH	T: tri-helical	F: PF00440	ECOD (1.6)
D [auth B]	PF21776	e3angB2	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: PF21776	ECOD (1.6)
C [auth D]	PF00440	e3angD1	A: alpha arrays	X: HTH	H: HTH	T: tri-helical	F: PF00440	ECOD (1.6)
C [auth D]	PF21776	e3angD2	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: PF21776	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A [auth C]	1.10.357.10	Mainly Alpha	Orthogonal Bundle	Tetracycline Repressor	domain 2	CATH (4.3.0)
B [auth A]	1.10.357.10	Mainly Alpha	Orthogonal Bundle	Tetracycline Repressor	domain 2	CATH (4.3.0)
D [auth B]	1.10.357.10	Mainly Alpha	Orthogonal Bundle	Tetracycline Repressor	domain 2	CATH (4.3.0)
C [auth D]	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 [auth C], B [auth A], C [auth D], D [auth B]	PF00440	Bacterial regulatory proteins, tetR family (TetR_N)	Bacterial regulatory proteins, tetR family	-	Domain
A [auth C], B [auth A], C [auth D], D [auth B]	PF21776	TetR/AcrR family transcriptional repressors, C-terminal domain (TetR_C_44)	TetR/AcrR family transcriptional repressors, C-terminal domain	TetR/AcrR family transcriptional repressors regulate a wide range of cellular activities, including multidrug resistance, virulence and pathogenicity of bacteria. Members of this family are two domain proteins consisting of N-terminal HTH DNA-binding ...	TetR/AcrR family transcriptional repressors regulate a wide range of cellular activities, including multidrug resistance, virulence and pathogenicity of bacteria. Members of this family are two domain proteins consisting of N-terminal HTH DNA-binding domain and C-terminal ligand recognition domain. This entry represents the C-terminal domain that besides the ligand recognition, is involved in dimerisation. In contrast to the N-terminal domain, this domain is more diverse allowing different regulators in the TetR/AcrR family to accommodate specific sets of inducing ligands.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth C], B [auth A], C [auth D], D [auth B]	Transcriptional repressor, TetR family	DNA binding sequence-specific DNA binding sequence-specific double-stranded DNA binding transcription cis-regulatory region binding binding double-stranded DNA binding organic cyclic compound binding nucleic acid binding transcription regulatory region nucleic acid binding transcription regulator activity DNA-binding transcription factor activity	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth C], B [auth A], C [auth D], D [auth B]	IPR009057	Homedomain-like superfamily	Homologous Superfamily
A [auth C], B [auth A], C [auth D], D [auth B]	IPR049444	TetR/AcrR transcriptional repressor, C-terminal domain	Domain
A [auth C], B [auth A], C [auth D], D [auth B]	IPR001647	DNA-binding HTH domain, TetR-type	Domain
A [auth C], B [auth A], C [auth D], D [auth B]	IPR036271	Tetracyclin repressor-like, C-terminal domain superfamily	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.