4MCX | pdb_00004mcx

P. vulgaris HIGBA structure, crystal form 2

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
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	d4mcxe_	All alpha proteins	lambda repressor-like DNA-binding domains	lambda repressor-like DNA-binding domains	SinR domain-like	Antitoxin HigA	(Proteus vulgaris ) [TaxId: 585 ],	SCOPe (2.08)
C	d4mcxc_	All alpha proteins	lambda repressor-like DNA-binding domains	lambda repressor-like DNA-binding domains	SinR domain-like	Antitoxin HigA	(Proteus vulgaris ) [TaxId: 585 ],	SCOPe (2.08)
A	d4mcxa_	All alpha proteins	lambda repressor-like DNA-binding domains	lambda repressor-like DNA-binding domains	SinR domain-like	Antitoxin HigA	(Proteus vulgaris ) [TaxId: 585 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
F	SCOP2B Superfamily	RelE-like	8102970	3000741	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	RelE-like	8102970	3000741	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	RelE-like	8102970	3000741	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	lambda C1 repressor DNA-binding domain-like	8082923	3000119	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	lambda C1 repressor DNA-binding domain-like	8082923	3000119	SCOP2B (2022-06-29)
A	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)
F	HigB-like_toxin	e4mcxF1	A: a+b two layers	X: RelE-like	H: RelE-like (From Topology)	T: RelE-like	F: HigB-like_toxin	ECOD (1.6)
D	HigB-like_toxin	e4mcxD1	A: a+b two layers	X: RelE-like	H: RelE-like (From Topology)	T: RelE-like	F: HigB-like_toxin	ECOD (1.6)
B	HigB-like_toxin	e4mcxB1	A: a+b two layers	X: RelE-like	H: RelE-like (From Topology)	T: RelE-like	F: HigB-like_toxin	ECOD (1.6)
E	HTH_3_3	e4mcxE1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: HTH_3_3	ECOD (1.6)
C	HTH_3_3	e4mcxC1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: HTH_3_3	ECOD (1.6)
A	HTH_3_3	e4mcxA1	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)
F	3.30.2310.20	Alpha Beta	2-Layer Sandwich	YaeB-like fold	RelE-like	CATH (4.3.0)
D	3.30.2310.20	Alpha Beta	2-Layer Sandwich	YaeB-like fold	RelE-like	CATH (4.3.0)
B	3.30.2310.20	Alpha Beta	2-Layer Sandwich	YaeB-like fold	RelE-like	CATH (4.3.0)
E	1.10.260.40	Mainly Alpha	Orthogonal Bundle	434 Repressor (Amino-terminal Domain)	lambda repressor-like DNA-binding domains	CATH (4.3.0)
C	1.10.260.40	Mainly Alpha	Orthogonal Bundle	434 Repressor (Amino-terminal Domain)	lambda repressor-like DNA-binding domains	CATH (4.3.0)
A	1.10.260.40	Mainly Alpha	Orthogonal Bundle	434 Repressor (Amino-terminal Domain)	lambda repressor-like DNA-binding domains	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B, D, F	Killer protein	endonuclease activity nuclease activity catalytic activity, acting on RNA RNA endonuclease activity catalytic activity, acting on a nucleic acid RNA nuclease activity catalytic activity hydrolase activity RNA binding binding nucleic acid binding mRNA binding translation regulator activity translation repressor activity endonuclease activity nuclease activity catalytic activity, acting on RNA RNA endonuclease activity catalytic activity, acting on a nucleic acid RNA nuclease activity catalytic activity hydrolase activity RNA binding binding nucleic acid binding mRNA binding translation regulator activity translation repressor activity ribonucleoprotein complex binding protein-containing complex binding ribosome binding	catabolic process RNA metabolic process primary metabolic process nucleic acid metabolic process macromolecule catabolic process nucleobase-containing compound catabolic process nucleobase-containing compound metabolic process nucleic acid catabolic process metabolic process cellular process macromolecule metabolic process RNA catabolic process plasmid maintenance regulation of biological process catabolic process RNA metabolic process primary metabolic process nucleic acid metabolic process macromolecule catabolic process nucleobase-containing compound catabolic process nucleobase-containing compound metabolic process nucleic acid catabolic process metabolic process cellular process macromolecule metabolic process RNA catabolic process plasmid maintenance regulation of biological process regulation of growth regulation of cellular component organization regulation of cellular process negative regulation of biological process biological regulation growth negative regulation of cell growth regulation of cell growth cell growth cellular component organization negative regulation of growth negative regulation of cellular process cellular component organization or biogenesis protein biosynthetic process regulation of primary metabolic process post-transcriptional regulation of gene expression negative regulation of translation protein metabolic process negative regulation of protein metabolic process negative regulation of macromolecule metabolic process regulation of biosynthetic process regulation of protein metabolic process negative regulation of metabolic process regulation of macromolecule metabolic process gene expression translation macromolecule biosynthetic process regulation of gene expression negative regulation of gene expression biosynthetic process negative regulation of biosynthetic process regulation of translation negative regulation of macromolecule biosynthetic process regulation of macromolecule biosynthetic process regulation of metabolic process negative regulation of cell population proliferation cell population proliferation regulation of cell population proliferation	-
A, C, E	Antidote protein	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 nucleic acid binding transcription regulatory region nucleic acid binding transcription regulator activity DNA-binding transcription factor activity molecular sequestering 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 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 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
B, D, F	IPR007711	Toxin HigB-1	Family
B, D, F	IPR035093	Toxin-antitoxin system, RelE/ParE toxin domain superfamily	Homologous Superfamily
A, C, E	IPR001387	Cro/C1-type, helix-turn-helix domain	Domain
A, C, E	IPR013430	Toxin-antitoxin system, antidote protein, HigA	Family
A, C, E	IPR010982	Lambda repressor-like, DNA-binding 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 R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.