4PXI

Elucidation of the Structural and Functional Mechanism of Action of the TetR Family Protein, CprB from S. coelicolor A3(2)

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	TetR C-terminal domain-like	8056378	3000086	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Homeodomain-like	8056377	3000001	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	TetR C-terminal domain-like	8056378	3000086	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Homeodomain-like	8056377	3000001	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Homeodomain-like	8056377	3000001	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	TetR C-terminal domain-like	8056378	3000086	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	TetR C-terminal domain-like	8056378	3000086	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Homeodomain-like	8056377	3000001	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	TetR_N	e4pxiA2	A: alpha arrays	X: HTH	H: HTH	T: tri-helical	F: TetR_N	ECOD (1.6)
A	TetR_C_11_like_1	e4pxiA1	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: TetR_C_11_like_1	ECOD (1.6)
B	TetR_N	e4pxiB1	A: alpha arrays	X: HTH	H: HTH	T: tri-helical	F: TetR_N	ECOD (1.6)
B	TetR_C_11_like_1	e4pxiB2	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: TetR_C_11_like_1	ECOD (1.6)
C	TetR_N	e4pxiC1	A: alpha arrays	X: HTH	H: HTH	T: tri-helical	F: TetR_N	ECOD (1.6)
C	TetR_C_11_like_1	e4pxiC2	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: TetR_C_11_like_1	ECOD (1.6)
D	TetR_N	e4pxiD1	A: alpha arrays	X: HTH	H: HTH	T: tri-helical	F: TetR_N	ECOD (1.6)
D	TetR_C_11_like_1	e4pxiD2	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: TetR_C_11_like_1	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)
B	1.10.357.10	Mainly Alpha	Orthogonal Bundle	Tetracycline Repressor	domain 2	CATH (4.3.0)
C	1.10.357.10	Mainly Alpha	Orthogonal Bundle	Tetracycline Repressor	domain 2	CATH (4.3.0)
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, B, C, D	PF00440	Bacterial regulatory proteins, tetR family (TetR_N)	Bacterial regulatory proteins, tetR family	-	Domain
A, B, C, D	PF21935	Tetracyclin repressor-like, C-terminal domain (TetR_C_45)	Tetracyclin repressor-like, C-terminal domain	This domain is found at the C-terminal end of CprB from Streptomyces coelicolor (Swiss:O66122) and similar bacterial transcriptional regulators. This region is the ligand-binding domain (LBD) [1,2]. It is often found associated with Pfam:PF00440.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	CprB	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	-	-
E	DNA (5'-D(APCPAPTPAPCPGPGPGPAPCPGPCPCPCPCPGPTPTPTPAPT)-3')	-	-	-
F	DNA (5'-D(APTPAPAPAPCPGPGPGPGPCPGPTPCPCPCPGPTPAPTPGPT)-3')	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR023772	DNA-binding HTH domain, TetR-type, conserved site	Conserved Site
A, B, C, D	IPR009057	Homedomain-like superfamily	Homologous Superfamily
A, B, C, D	IPR050109	HTH-type transcriptional regulators	Family
A, B, C, D	IPR047923	A-factor receptor protein-like	Family
A, B, C, D	IPR001647	DNA-binding HTH domain, TetR-type	Domain
A, B, C, D	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.