3QKX | pdb_00003qkx

Crystal structure of a TetR-family transcriptional regulator (HI0893) from Haemophilus influenzae RD at 2.35 A resolution

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)
B	SCOP2 Family	Tetracyclin repressor-like	8087033	4000333	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	TetR C-terminal domain-like	8090103	3000086	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	Homeodomain-like	8090102	3000001	SCOP2 (2022-06-29)
A	SCOP2B Superfamily	TetR C-terminal domain-like	8090103	3000086	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Homeodomain-like	8090102	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)
B	TetR_N	e3qkxB1	A: alpha arrays	X: HTH	H: HTH	T: tri-helical	F: TetR_N	ECOD (1.6)
B	TetR_C_10_2	e3qkxB2	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_10_2	ECOD (1.6)
A	TetR_N	e3qkxA1	A: alpha arrays	X: HTH	H: HTH	T: tri-helical	F: TetR_N	ECOD (1.6)
A	TetR_C_10_2	e3qkxA2	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_10_2	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	1.10.357.10	Mainly Alpha	Orthogonal Bundle	Tetracycline Repressor	domain 2	CATH (4.3.0)
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, B	PF22604	Tetracyclin repressor-like HI_0893, C-terminal domain (TetR_HI_0893_C)	Tetracyclin repressor-like HI_0893, C-terminal domain	This entry represents the C-terminal domain of some HTH-type transcriptional repressors, such as HI_0893 from Haemophilus influenzae.	Domain
A, B	PF00440	Bacterial regulatory proteins, tetR family (TetR_N)	Bacterial regulatory proteins, tetR family		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Uncharacterized HTH-type transcriptional regulator HI_0893	DNA binding sequence-specific DNA binding sequence-specific double-stranded DNA binding transcription cis-regulatory region binding binding double-stranded DNA binding nucleic acid binding transcription regulatory region nucleic acid binding transcription regulator activity DNA-binding transcription factor activity	regulation of cellular process RNA metabolic process regulation of primary metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process DNA-templated transcription regulation of RNA metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of biosynthetic process regulation of biological process biological regulation primary metabolic process regulation of cellular process RNA metabolic process regulation of primary metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process DNA-templated transcription regulation of RNA metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of biosynthetic process regulation of biological process biological regulation primary metabolic process regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of gene expression biosynthetic process cellular process metabolic process regulation of macromolecule biosynthetic process regulation of DNA-templated transcription macromolecule metabolic process regulation of metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR023772	DNA-binding HTH domain, TetR-type, conserved site	Conserved Site
A, B	IPR009057	Homedomain-like superfamily	Homologous Superfamily
A, B	IPR050624	HTH-type Transcriptional Regulator	Family
A, B	IPR054422	Tetracyclin repressor-like HI_0893, C-terminal domain	Domain
A, B	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.