Annotations: 3CYT

Domain Annotation: SCOP/SCOPe Classification SCOP Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A [auth O]	d3cyto_	All alpha proteins	Cytochrome c	Cytochrome c	monodomain cytochrome c	Mitochondrial cytochrome c	albacore (Thunnus alalunga ) [TaxId: 8235 ],	SCOPe (2.08)
B [auth I]	d3cyti_	All alpha proteins	Cytochrome c	Cytochrome c	monodomain cytochrome c	Mitochondrial cytochrome c	albacore (Thunnus alalunga ) [TaxId: 8235 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A [auth O]	SCOP2B Superfamily	Cytochrome c	8041280	3000815	SCOP2B (2022-06-29)
B [auth I]	SCOP2B Superfamily	Cytochrome c	8041280	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)
A [auth O]	Cytochrom_C_1	e3cytO1	A: alpha arrays	X: Cytochrome c-like	H: Cytochrome c (From Topology)	T: Cytochrome c	F: Cytochrom_C_1	ECOD (1.6)
B [auth I]	Cytochrom_C_1	e3cytI1	A: alpha arrays	X: Cytochrome c-like	H: Cytochrome c (From Topology)	T: Cytochrome c	F: Cytochrom_C_1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A [auth O]	1.10.760.10	Mainly Alpha	Orthogonal Bundle	Cytochrome Bc1 Complex	Chain D, domain 2	CATH (4.3.0)
B [auth I]	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 [auth O], B [auth I]	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 [auth O], B [auth I]	CYTOCHROME C	binding organic cyclic compound binding tetrapyrrole binding heme binding electron transfer activity cation binding ion binding metal ion binding small molecule binding	-	membrane respirasome cellular anatomical entity membrane-bounded organelle intracellular anatomical structure mitochondrial intermembrane space mitochondrion membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen organelle envelope lumen intracellular organelle organelle envelope organelle lumen membrane respirasome cellular anatomical entity membrane-bounded organelle intracellular anatomical structure 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 cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth O], B [auth I]	IPR036909	Cytochrome c-like domain superfamily	Homologous Superfamily
A [auth O], B [auth I]	IPR009056	Cytochrome c-like domain	Domain
A [auth O], B [auth I]	IPR002327	Cytochrome c, class IA/ IB	Family

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
A [auth O], B [auth I]	ACE	RESID: AA0041 , AA0042 , AA0043 , AA0044 , AA0045 , AA0046 , AA0049 , AA0050 , AA0051 , AA0052 , AA0053 , AA0054 , AA0354 PSI-MOD : N-acetyl-L-alanine MOD:00050 , N-acetyl-L-aspartic acid MOD:00051 , N-acetyl-L-cysteine MOD:00052 , N-acetyl-S-archeol-cysteine MOD:00897 , N-acetyl-L-glutamic acid MOD:00053 , N-acetyl-L-glutamine MOD:00054 , N-acetylglycine MOD:00055 , N-acetyl-L-methionine MOD:00058 , N-acetyl-L-proline MOD:00059 , N-acetyl-L-serine MOD:00060 , N,O-diacetylated L-serine MOD:00648 , N-acetyl-L-threonine MOD:00061 , N-acetyl-L-tyrosine MOD:00062 , N-acetyl-L-valine MOD:00063 , N2-acetyl-L-arginine MOD:00359

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.