Annotations: 3G7Z

CcdB dimer in complex with two C-terminal CcdA domains

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)
B	d3g7zb_	All beta proteins	SH3-like barrel	Cell growth inhibitor/plasmid maintenance toxic component	CcdB	CcdB	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
A	d3g7za_	All beta proteins	SH3-like barrel	Cell growth inhibitor/plasmid maintenance toxic component	CcdB	CcdB	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	Cell growth inhibitor/plasmid maintenance toxic component	8041673	3000352	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Cell growth inhibitor/plasmid maintenance toxic component	8041673	3000352	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)
D	Med6	e3g7zD1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Med6	ECOD (v295)
C	ColA_N	e3g7zC01	A: alpha arrays	X: Colicin-A N-terminal domain	H: Colicin-A N-terminal domain	T: Colicin-A N-terminal domain	F: ColA_N	ECOD (v295)
B	YgbB	e3g7zB1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: YgbB	ECOD (v295)
A	DapB_N	e3g7zA1	A: alpha arrays	X: Alpha-beta plaits	H: HMA-related	T: HMA, heavy metal-associated domain	F: DapB_N	ECOD (v295)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	2.30.30.110	Mainly Beta	Roll	SH3 type barrels.		CATH (4.3.0)
A	2.30.30.110	Mainly Beta	Roll	SH3 type barrels.		CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C, D	Protein ccdA	DNA binding binding nucleic acid binding molecular sequestering activity toxin sequestering activity	regulation of cellular process negative regulation of biological process RNA metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process regulation of RNA metabolic process negative regulation of cellular process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of cellular process negative regulation of biological process RNA metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process regulation of RNA metabolic process negative regulation of cellular process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process negative regulation of macromolecule metabolic process regulation of biosynthetic process negative regulation of DNA-templated transcription regulation of biological process negative regulation of metabolic 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 negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process metabolic process cellular process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of DNA-templated transcription regulation of metabolic process negative regulation of RNA metabolic process cellular component organization cellular component disassembly protein-containing complex organization protein-containing complex disassembly cellular component organization or biogenesis	-
A, B	Cytotoxic protein ccdB	enzyme regulator activity molecular function inhibitor activity DNA topoisomerase type II (double strand cut, ATP-hydrolyzing) inhibitor activity molecular function regulator activity enzyme inhibitor activity DNA topoisomerase type II (double strand cut, ATP-hydrolyzing) regulator activity ATPase inhibitor activity	regulation of cellular process negative regulation of biological process RNA metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process regulation of RNA metabolic process negative regulation of cellular process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of cellular process negative regulation of biological process RNA metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process regulation of RNA metabolic process negative regulation of cellular process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process negative regulation of macromolecule metabolic process regulation of biosynthetic process negative regulation of DNA-templated transcription regulation of biological process negative regulation of metabolic 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 negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process metabolic process cellular process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of DNA-templated transcription regulation of metabolic process negative regulation of RNA metabolic process negative regulation of DNA-templated DNA replication DNA-templated DNA replication negative regulation of DNA replication DNA metabolic process DNA replication regulation of DNA-templated DNA replication negative regulation of DNA metabolic process regulation of DNA metabolic process regulation of DNA replication plasmid maintenance	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C, D	IPR009956	Post-segregation antitoxin CcdA	Family
A, B	IPR011067	Plasmid maintenance toxin/Cell growth inhibitor	Homologous Superfamily
A, B	IPR002712	Toxin CcdB	Family

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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.