6CHV

Proteus vulgaris HigA antitoxin bound to DNA

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	lambda C1 repressor DNA-binding domain-like	8082923	3000119	SCOP2B (2022-06-29)
B [auth C]	SCOP2B Superfamily	lambda C1 repressor DNA-binding domain-like	8082923	3000119	SCOP2B (2022-06-29)
E [auth B]	SCOP2B Superfamily	lambda C1 repressor DNA-binding domain-like	8082923	3000119	SCOP2B (2022-06-29)
F [auth D]	SCOP2B Superfamily	lambda C1 repressor DNA-binding domain-like	8082923	3000119	SCOP2B (2022-06-29)
I [auth G]	SCOP2B Superfamily	lambda C1 repressor DNA-binding domain-like	8082923	3000119	SCOP2B (2022-06-29)
J [auth H]	SCOP2B Superfamily	lambda C1 repressor DNA-binding domain-like	8082923	3000119	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	HTH_3_3	e6chvA1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: HTH_3_3	ECOD (1.6)
B [auth C]	HTH_3_3	e6chvC1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: HTH_3_3	ECOD (1.6)
E [auth B]	HTH_3_3	e6chvB1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: HTH_3_3	ECOD (1.6)
F [auth D]	HTH_3_3	e6chvD1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: HTH_3_3	ECOD (1.6)
I [auth G]	HTH_3_3	e6chvG1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: HTH_3_3	ECOD (1.6)
J [auth H]	HTH_3_3	e6chvH1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: HTH_3_3	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.260.40	Mainly Alpha	Orthogonal Bundle	434 Repressor (Amino-terminal Domain)	lambda repressor-like DNA-binding domains	CATH (4.3.0)
B [auth C]	1.10.260.40	Mainly Alpha	Orthogonal Bundle	434 Repressor (Amino-terminal Domain)	lambda repressor-like DNA-binding domains	CATH (4.3.0)
E [auth B]	1.10.260.40	Mainly Alpha	Orthogonal Bundle	434 Repressor (Amino-terminal Domain)	lambda repressor-like DNA-binding domains	CATH (4.3.0)
F [auth D]	1.10.260.40	Mainly Alpha	Orthogonal Bundle	434 Repressor (Amino-terminal Domain)	lambda repressor-like DNA-binding domains	CATH (4.3.0)
I [auth G]	1.10.260.40	Mainly Alpha	Orthogonal Bundle	434 Repressor (Amino-terminal Domain)	lambda repressor-like DNA-binding domains	CATH (4.3.0)
J [auth H]	1.10.260.40	Mainly Alpha	Orthogonal Bundle	434 Repressor (Amino-terminal Domain)	lambda repressor-like DNA-binding domains	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B [auth C], E [auth B], F [auth D], I [auth G], A, B [auth C], E [auth B], F [auth D], I [auth G], J [auth H]	PF01381	Helix-turn-helix (HTH_3)	Helix-turn-helix	This large family of DNA binding helix-turn helix proteins includes Cro Swiss:P03036 and CI Swiss:P03034. Within the protein Swiss:Q5F9C2, the full protein fold incorporates a helix-turn-helix motif, but the function of this member is unlikely to be ...	This large family of DNA binding helix-turn helix proteins includes Cro Swiss:P03036 and CI Swiss:P03034. Within the protein Swiss:Q5F9C2, the full protein fold incorporates a helix-turn-helix motif, but the function of this member is unlikely to be that of a DNA-binding regulator, the function of most other members, so is not necessarily characteristic of the whole family [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
D [auth J], H [auth F], L	pHigCryst4	-	-	-
A, B [auth C], E [auth B], F [auth D], I [auth G], A, B [auth C], E [auth B], F [auth D], I [auth G], J [auth H]	Antitoxin HigA	protein heterodimerization activity protein binding binding protein dimerization activity DNA binding sequence-specific DNA binding sequence-specific double-stranded DNA binding transcription cis-regulatory region 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 protein heterodimerization activity protein binding binding protein dimerization activity DNA binding sequence-specific DNA binding sequence-specific double-stranded DNA binding transcription cis-regulatory region 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 molecular sequestering activity toxin sequestering activity	regulation of cellular process cellular biosynthetic 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 organic substance metabolic process organic substance biosynthetic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of biosynthetic process regulation of cellular process cellular biosynthetic 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 organic substance metabolic process organic substance biosynthetic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of biosynthetic process regulation of biological process cellular metabolic process biological regulation primary metabolic process regulation of cellular metabolic process regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of cellular biosynthetic process organic cyclic compound metabolic process regulation of gene expression biosynthetic process organic cyclic compound biosynthetic process metabolic process regulation of macromolecule biosynthetic process cellular process regulation of DNA-templated transcription macromolecule metabolic process regulation of metabolic process	-
C [auth I], G [auth E], K	pHigCryst3	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B [auth C], E [auth B], F [auth D], I [auth G], A, B [auth C], E [auth B], F [auth D], I [auth G], J [auth H]	IPR001387	Cro/C1-type helix-turn-helix domain	Domain
A, B [auth C], E [auth B], F [auth D], I [auth G], A, B [auth C], E [auth B], F [auth D], I [auth G], J [auth H]	IPR013430	Toxin-antitoxin system, antidote protein, HigA	Family
A, B [auth C], E [auth B], F [auth D], I [auth G], A, B [auth C], E [auth B], F [auth D], I [auth G], J [auth H]	IPR010982	Lambda repressor-like, DNA-binding domain superfamily	Homologous Superfamily

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.