3NBS | pdb_00003nbs

Crystal structure of dimeric cytochrome c from horse heart

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)
D	d3nbsd_	All alpha proteins	Cytochrome c	Cytochrome c	monodomain cytochrome c	Mitochondrial cytochrome c	(Equus caballus ) [TaxId: 9796 ],	SCOPe (2.08)
C	d3nbsc_	All alpha proteins	Cytochrome c	Cytochrome c	monodomain cytochrome c	Mitochondrial cytochrome c	(Equus caballus ) [TaxId: 9796 ],	SCOPe (2.08)
B	d3nbsb_	All alpha proteins	Cytochrome c	Cytochrome c	monodomain cytochrome c	Mitochondrial cytochrome c	(Equus caballus ) [TaxId: 9796 ],	SCOPe (2.08)
A	d3nbsa_	All alpha proteins	Cytochrome c	Cytochrome c	monodomain cytochrome c	Mitochondrial cytochrome c	(Equus caballus ) [TaxId: 9796 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
D	SCOP2B Superfamily	Cytochrome c	8036431	3000815	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Cytochrome c	8036431	3000815	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Cytochrome c	8036431	3000815	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Cytochrome c	8036431	3000815	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	Cytochrome_CBB3	e3nbsD1	A: a/b three-layered sandwiches	X: Lipocalins/Streptavidin	H: Zn-dependent exopeptidases	T: Zn-dependent exopeptidases	F: Cytochrome_CBB3	ECOD (v294.1)
C	Cytochrome_CBB3	e3nbsC1	A: a/b three-layered sandwiches	X: Lipocalins/Streptavidin	H: Zn-dependent exopeptidases	T: Zn-dependent exopeptidases	F: Cytochrome_CBB3	ECOD (v294.1)
B	Cytochrome_CBB3	e3nbsB1	A: a/b three-layered sandwiches	X: Lipocalins/Streptavidin	H: Zn-dependent exopeptidases	T: Zn-dependent exopeptidases	F: Cytochrome_CBB3	ECOD (v294.1)
A	Peptidase_S51	e3nbsA1	A: a/b three-layered sandwiches	X: Cystatin-like	H: Cytochrome b5-like heme/steroid binding domain	T: Cytochrome b5-like heme/steroid binding domain	F: Peptidase_S51	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
D	1.10.760.10	Mainly Alpha	Orthogonal Bundle	Cytochrome Bc1 Complex	Chain D, domain 2	CATH (4.3.0)
C	1.10.760.10	Mainly Alpha	Orthogonal Bundle	Cytochrome Bc1 Complex	Chain D, domain 2	CATH (4.3.0)
B	1.10.760.10	Mainly Alpha	Orthogonal Bundle	Cytochrome Bc1 Complex	Chain D, domain 2	CATH (4.3.0)
A	1.10.760.10	Mainly Alpha	Orthogonal Bundle	Cytochrome Bc1 Complex	Chain D, domain 2	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF00034	Cytochrome c (Cytochrom_C)	Cytochrome c	The Pfam entry does not include all Prosite members. The cytochrome 556 and cytochrome c' families are not included. All these are now in a new clan together. The C-terminus of DUF989, Pfam:PF06181, has now been merged into this family.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	Cytochrome c	binding lipid binding tetrapyrrole binding heme binding electron transfer activity cation binding ion binding metal ion binding small molecule binding identical protein binding protein binding	aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds ATP synthesis coupled electron transport electron transport chain generation of precursor metabolites and energy mitochondrial electron transport, cytochrome c to oxygen respiratory electron transport chain metabolic process cellular process mitochondrial ATP synthesis coupled electron transport mitochondrial electron transport, ubiquinol to cytochrome c aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds ATP synthesis coupled electron transport electron transport chain generation of precursor metabolites and energy mitochondrial electron transport, cytochrome c to oxygen respiratory electron transport chain metabolic process cellular process mitochondrial ATP synthesis coupled electron transport mitochondrial electron transport, ubiquinol to cytochrome c cellular response to stimulus regulation of biological process regulation of cellular process response to stimulus signaling biological regulation cell death cell communication apoptotic signaling pathway signal transduction apoptotic process programmed cell death	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol membrane-bounded organelle mitochondrial intermembrane space mitochondrion membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen organelle envelope lumen intracellular organelle organelle envelope organelle lumen cellular anatomical structure intracellular anatomical structure cytoplasm cytosol membrane-bounded organelle mitochondrial intermembrane space mitochondrion membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen organelle envelope lumen intracellular organelle organelle envelope organelle lumen organelle mitochondrial envelope protein-containing complex cytochrome complex catalytic complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR036909	Cytochrome c-like domain superfamily	Homologous Superfamily
A, B, C, D	IPR009056	Cytochrome c-like domain	Domain
A, B, C, D	IPR002327	Cytochrome c, class IA/ IB	Family

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.