Annotations: 1ZK8

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1zk8a1	All alpha proteins	DNA/RNA-binding 3-helical bundle	Homeodomain-like	Tetracyclin repressor-like, N-terminal domain	Transcriptional regulator BC5000	(Bacillus cereus ATCC 14579 ) [TaxId: 226900 ],	SCOPe (2.08)
A	d1zk8a2	All alpha proteins	Tetracyclin repressor-like, C-terminal domain	Tetracyclin repressor-like, C-terminal domain	Tetracyclin repressor-like, C-terminal domain	Transcriptional regulator BC5000	(Bacillus cereus ATCC 14579 ) [TaxId: 226900 ],	SCOPe (2.08)
B	d1zk8b1	All alpha proteins	DNA/RNA-binding 3-helical bundle	Homeodomain-like	Tetracyclin repressor-like, N-terminal domain	Transcriptional regulator BC5000	(Bacillus cereus ATCC 14579 ) [TaxId: 226900 ],	SCOPe (2.08)
B	d1zk8b2	All alpha proteins	Tetracyclin repressor-like, C-terminal domain	Tetracyclin repressor-like, C-terminal domain	Tetracyclin repressor-like, C-terminal domain	Transcriptional regulator BC5000	(Bacillus cereus ATCC 14579 ) [TaxId: 226900 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Tetracyclin repressor-like	8056429	4000333	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Homeodomain-like	8056430	3000001	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	TetR C-terminal domain-like	8056431	3000086	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	Homeodomain-like	8056430	3000001	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	TetR C-terminal domain-like	8056431	3000086	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	F_UNCLASSIFIED	e1zk8A1	A: alpha arrays	X: HTH	H: HTH	T: tri-helical	F: F_UNCLASSIFIED	ECOD (1.6)
A	PF13305	e1zk8A2	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: PF13305	ECOD (1.6)
B	F_UNCLASSIFIED	e1zk8B1	A: alpha arrays	X: HTH	H: HTH	T: tri-helical	F: F_UNCLASSIFIED	ECOD (1.6)
B	PF13305	e1zk8B2	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: PF13305	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.10.60	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Homeodomain-like	CATH (4.3.0)
A	1.10.357.10	Mainly Alpha	Orthogonal Bundle	Tetracycline Repressor	domain 2	CATH (4.3.0)
B	1.10.10.60	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Homeodomain-like	CATH (4.3.0)
B	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, B	PF13305	Tetracyclin repressor-like, C-terminal domain (TetR_C_33)	Tetracyclin repressor-like, C-terminal domain	This domain is around 80 amino acids in length. It is found to the C-terminus of a DNA-binding helix-turn-helix domain. This domain may be involved transcriptional regulation predicted to belong to the TetR family. This domain contains three conserv ...	This domain is around 80 amino acids in length. It is found to the C-terminus of a DNA-binding helix-turn-helix domain. This domain may be involved transcriptional regulation predicted to belong to the TetR family. This domain contains three conserved residues (WHG) near the C-terminus.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Transcriptional regulator, TetR family	DNA binding binding organic cyclic compound binding nucleic acid binding	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR001647	DNA-binding HTH domain, TetR-type	Domain
A, B	IPR036271	Tetracyclin repressor-like, C-terminal domain superfamily	Homologous Superfamily
A, B	IPR009057	Homeobox-like domain superfamily	Homologous Superfamily
A, B	IPR025996	HTH-type transcriptional regulator MT1864/Rv1816-like, C-terminal domain	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 R01GM133198.