2P5L

Crystal structure of a dimer of N-terminal domains of AhrC in complex with an 18bp DNA operator site

External Resource: Annotation

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
E [auth C]	d2p5lc1	All alpha proteins	DNA/RNA-binding 3-helical bundle	'Winged helix' DNA-binding domain	Arginine repressor (ArgR), N-terminal DNA-binding domain	Arginine repressor (ArgR), N-terminal DNA-binding domain	(Bacillus subtilis ) [TaxId: 1423 ],	SCOPe (2.08)
F [auth D]	d2p5ld1	All alpha proteins	DNA/RNA-binding 3-helical bundle	'Winged helix' DNA-binding domain	Arginine repressor (ArgR), N-terminal DNA-binding domain	Arginine repressor (ArgR), N-terminal DNA-binding domain	(Bacillus subtilis ) [TaxId: 1423 ],	SCOPe (2.08)
G	d2p5lg1	All alpha proteins	DNA/RNA-binding 3-helical bundle	'Winged helix' DNA-binding domain	Arginine repressor (ArgR), N-terminal DNA-binding domain	Arginine repressor (ArgR), N-terminal DNA-binding domain	(Bacillus subtilis ) [TaxId: 1423 ],	SCOPe (2.08)
H	d2p5lh1	All alpha proteins	DNA/RNA-binding 3-helical bundle	'Winged helix' DNA-binding domain	Arginine repressor (ArgR), N-terminal DNA-binding domain	Arginine repressor (ArgR), N-terminal DNA-binding domain	(Bacillus subtilis ) [TaxId: 1423 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
E [auth C]	SCOP2B Superfamily	Winged helix DNA-binding domain	8058558	3000034	SCOP2B (2022-06-29)
F [auth D]	SCOP2B Superfamily	Winged helix DNA-binding domain	8058558	3000034	SCOP2B (2022-06-29)
G	SCOP2B Superfamily	Winged helix DNA-binding domain	8058558	3000034	SCOP2B (2022-06-29)
H	SCOP2B Superfamily	Winged helix DNA-binding domain	8058558	3000034	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)
E [auth C]	PF01316	e2p5lC1	A: alpha arrays	X: HTH	H: HTH	T: winged	F: PF01316	ECOD (1.6)
F [auth D]	PF01316	e2p5lD1	A: alpha arrays	X: HTH	H: HTH	T: winged	F: PF01316	ECOD (1.6)
G	PF01316	e2p5lG1	A: alpha arrays	X: HTH	H: HTH	T: winged	F: PF01316	ECOD (1.6)
H	PF01316	e2p5lH1	A: alpha arrays	X: HTH	H: HTH	T: winged	F: PF01316	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
E [auth C]	1.10.10.10	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain	CATH (4.3.0)
F [auth D]	1.10.10.10	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain	CATH (4.3.0)
G	1.10.10.10	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain	CATH (4.3.0)
H	1.10.10.10	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
E [auth C], F [auth D], G, H	PF01316	Arginine repressor, DNA binding domain (Arg_repressor)	Arginine repressor, DNA binding domain	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, C [auth E]	DNA (5'-D(DCPDAPDTPDGPDAPDAPDTPDAPDAPDAPDAPDAPDTPDTPDCPDAPDAPDG)-3')	-	-	-
B, D [auth F]	DNA (5'-D(DCPDTPDTPDGPDAPDAPDTPDTPDTPDTPDTPDAPDTPDTPDCPDAPDTPDG)-3')	-	-	-
E [auth C], F [auth D], G, H	Arginine repressor	DNA binding binding organic cyclic compound binding nucleic acid binding transcription regulator activity DNA-binding transcription factor activity cation binding organic acid binding ion binding anion binding amino acid binding carboxylic acid binding arginine binding small molecule binding	cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein complex oligomerization protein-containing complex assembly cellular process cellular component organization or biogenesis oxoacid metabolic process glutamine family amino acid biosynthetic process cellular biosynthetic process organonitrogen compound biosynthetic process amino acid metabolic process organic acid metabolic process cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein complex oligomerization protein-containing complex assembly cellular process cellular component organization or biogenesis oxoacid metabolic process glutamine family amino acid biosynthetic process cellular biosynthetic process organonitrogen compound biosynthetic process amino acid metabolic process organic acid metabolic process organic acid biosynthetic process arginine biosynthetic process alpha-amino acid metabolic process carboxylic acid biosynthetic process glutamine family amino acid metabolic process arginine metabolic process organic substance metabolic process organic substance biosynthetic process small molecule metabolic process organonitrogen compound metabolic process small molecule biosynthetic process cellular metabolic process carboxylic acid metabolic process primary metabolic process L-amino acid biosynthetic process L-amino acid metabolic process proteinogenic amino acid metabolic process amino acid biosynthetic process biosynthetic process proteinogenic amino acid biosynthetic process metabolic process alpha-amino acid biosynthetic process ornithine metabolic process arginine catabolic process to ornithine catabolic process glutamine family amino acid catabolic process arginine catabolic process organic acid catabolic process cellular catabolic process non-proteinogenic amino acid metabolic process carboxylic acid catabolic process amino acid catabolic process organonitrogen compound catabolic process L-amino acid catabolic process alpha-amino acid catabolic process proteinogenic amino acid catabolic process small molecule catabolic process organic substance catabolic process	intracellular anatomical structure cytoplasm cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
E [auth C], F [auth D], G, H	IPR036388	Winged helix-like DNA-binding domain superfamily	Homologous Superfamily
E [auth C], F [auth D], G, H	IPR001669	Arginine repressor	Family
E [auth C], F [auth D], G, H	IPR020899	Arginine repressor, C-terminal	Domain
E [auth C], F [auth D], G, H	IPR036390	Winged helix DNA-binding domain superfamily	Homologous Superfamily
E [auth C], F [auth D], G, H	IPR020900	Arginine repressor, DNA-binding domain	Domain
E [auth C], F [auth D], G, H	IPR036251	Arginine repressor, 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.