CYC_SQUSU
ID CYC_SQUSU Reviewed; 105 AA.
AC P00027;
DT 21-JUL-1986, integrated into UniProtKB/Swiss-Prot.
DT 23-JAN-2007, sequence version 2.
DT 03-AUG-2022, entry version 109.
DE RecName: Full=Cytochrome c;
GN Name=cyc;
OS Squalus suckleyi (Puget Sound dogfish) (Spinax suckleyi).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Chondrichthyes;
OC Elasmobranchii; Squalomorphii; Squaliformes; Squalidae; Squalus.
OX NCBI_TaxID=7798;
RN [1]
RP PROTEIN SEQUENCE OF 2-105, AND ACETYLATION AT GLY-2.
RX PubMed=6061416; DOI=10.1016/s0021-9258(18)99513-x;
RA Goldstone A., Smith E.L.;
RT "Amino acid sequence of the cytochrome c from the dogfish, Squalus
RT sucklii.";
RL J. Biol. Chem. 242:4702-4710(1967).
CC -!- FUNCTION: Electron carrier protein. The oxidized form of the cytochrome
CC c heme group can accept an electron from the heme group of the
CC cytochrome c1 subunit of cytochrome reductase. Cytochrome c then
CC transfers this electron to the cytochrome oxidase complex, the final
CC protein carrier in the mitochondrial electron-transport chain.
CC -!- SUBCELLULAR LOCATION: Mitochondrion intermembrane space. Note=Loosely
CC associated with the inner membrane.
CC -!- PTM: Binds 1 heme c group covalently per subunit.
CC -!- SIMILARITY: Belongs to the cytochrome c family. {ECO:0000305}.
CC -!- WEB RESOURCE: Name=Protein Spotlight; Note=Life shuttle - Issue 76 of
CC November 2006;
CC URL="https://web.expasy.org/spotlight/back_issues/076";
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DR PIR; A00024; CCDF.
DR AlphaFoldDB; P00027; -.
DR SMR; P00027; -.
DR iPTMnet; P00027; -.
DR GO; GO:0005758; C:mitochondrial intermembrane space; IEA:UniProtKB-SubCell.
DR GO; GO:0070469; C:respirasome; IEA:UniProtKB-KW.
DR GO; GO:0009055; F:electron transfer activity; IEA:InterPro.
DR GO; GO:0020037; F:heme binding; IEA:InterPro.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR Gene3D; 1.10.760.10; -; 1.
DR InterPro; IPR009056; Cyt_c-like_dom.
DR InterPro; IPR036909; Cyt_c-like_dom_sf.
DR InterPro; IPR002327; Cyt_c_1A/1B.
DR PANTHER; PTHR11961; PTHR11961; 1.
DR Pfam; PF00034; Cytochrom_C; 1.
DR PRINTS; PR00604; CYTCHRMECIAB.
DR SUPFAM; SSF46626; SSF46626; 1.
DR PROSITE; PS51007; CYTC; 1.
PE 1: Evidence at protein level;
KW Acetylation; Direct protein sequencing; Electron transport; Heme; Iron;
KW Metal-binding; Mitochondrion; Respiratory chain; Transport.
FT INIT_MET 1
FT /note="Removed"
FT /evidence="ECO:0000269|PubMed:6061416"
FT CHAIN 2..105
FT /note="Cytochrome c"
FT /id="PRO_0000108254"
FT BINDING 15
FT /ligand="heme c"
FT /ligand_id="ChEBI:CHEBI:61717"
FT /note="covalent"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00433,
FT ECO:0000269|PubMed:6061416"
FT BINDING 18
FT /ligand="heme c"
FT /ligand_id="ChEBI:CHEBI:61717"
FT /note="covalent"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00433,
FT ECO:0000269|PubMed:6061416"
FT BINDING 19
FT /ligand="heme c"
FT /ligand_id="ChEBI:CHEBI:61717"
FT /ligand_part="Fe"
FT /ligand_part_id="ChEBI:CHEBI:18248"
FT /note="axial binding residue"
FT BINDING 81
FT /ligand="heme c"
FT /ligand_id="ChEBI:CHEBI:61717"
FT /ligand_part="Fe"
FT /ligand_part_id="ChEBI:CHEBI:18248"
FT /note="axial binding residue"
FT MOD_RES 2
FT /note="N-acetylglycine"
FT /evidence="ECO:0000269|PubMed:6061416"
SQ SEQUENCE 105 AA; 11652 MW; CABF0EF591D3D456 CRC64;
MGDVEKGKKV FVQKCAQCHT VENGGKHKTG PNLSGLFGRK TGQAQGFSYT DANKSKGITW
QQETLRIYLE NPKKYIPGTK MIFAGLKKKS ERQDLIAYLK KTAAS
