ID   CYC_CRIFA               Reviewed;         114 AA.
AC   P00078;
DT   21-JUL-1986, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 2.
DT   03-AUG-2022, entry version 117.
DE   RecName: Full=Cytochrome c;
DE   AltName: Full=Cytochrome c555;
OS   Crithidia fasciculata.
OC   Eukaryota; Discoba; Euglenozoa; Kinetoplastea; Metakinetoplastina;
OC   Trypanosomatida; Trypanosomatidae; Leishmaniinae; Crithidia.
OX   NCBI_TaxID=5656;
RN   [1]
RP   PROTEIN SEQUENCE OF 2-114, AND METHYLATION AT LYS-4 AND LYS-83.
RX   PubMed=170111; DOI=10.1111/j.1432-1033.1975.tb02298.x;
RA   Hill G.C., Pettigrew G.W.;
RT   "Evidence for the amino-acid sequence of Crithidia fasciculata Cytochrome
RT   c555.";
RL   Eur. J. Biochem. 57:265-271(1975).
RN   [2]
RP   SEQUENCE REVISION TO 2.
RA   Pettigrew G.W.;
RL   Submitted (JUL-1977) to the PIR data bank.
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; A00070; CCCRCF.
DR   PDB; 2YK3; X-ray; 1.55 A; A/B/C=1-114.
DR   PDBsum; 2YK3; -.
DR   AlphaFoldDB; P00078; -.
DR   SMR; P00078; -.
DR   VEuPathDB; TriTrypDB:CFAC1_120023500; -.
DR   EvolutionaryTrace; P00078; -.
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   3D-structure; Direct protein sequencing; Electron transport; Heme; Iron;
KW   Metal-binding; Methylation; Mitochondrion; Respiratory chain; Transport.
FT   INIT_MET        1
FT                   /note="Removed"
FT                   /evidence="ECO:0000269|PubMed:170111"
FT   CHAIN           2..114
FT                   /note="Cytochrome c"
FT                   /id="PRO_0000108273"
FT   BINDING         28
FT                   /ligand="heme c"
FT                   /ligand_id="ChEBI:CHEBI:61717"
FT                   /note="covalent"
FT   BINDING         29
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         91
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,N-dimethylproline"
FT                   /evidence="ECO:0000250|UniProtKB:P00077"
FT   MOD_RES         4
FT                   /note="N6,N6,N6-trimethyllysine"
FT                   /evidence="ECO:0000269|PubMed:170111"
FT   MOD_RES         83
FT                   /note="N6,N6,N6-trimethyllysine"
FT                   /evidence="ECO:0000269|PubMed:170111"
FT   VARIANT         65
FT                   /note="E -> D"
FT   HELIX           14..24
FT                   /evidence="ECO:0007829|PDB:2YK3"
FT   TURN            25..28
FT                   /evidence="ECO:0007829|PDB:2YK3"
FT   STRAND          38..40
FT                   /evidence="ECO:0007829|PDB:2YK3"
FT   HELIX           61..65
FT                   /evidence="ECO:0007829|PDB:2YK3"
FT   HELIX           72..80
FT                   /evidence="ECO:0007829|PDB:2YK3"
FT   HELIX           82..85
FT                   /evidence="ECO:0007829|PDB:2YK3"
FT   HELIX           99..110
FT                   /evidence="ECO:0007829|PDB:2YK3"
SQ   SEQUENCE   114 AA;  12118 MW;  EB4C8D9CF6595290 CRC64;
     MPPKARAPLP PGDAARGEKL FKGRAAQCHT ANQGGANGVG PNLYGLVGRH SGTIEGYAYS
     KANAESGVVW TPDVLDVYLE NPKKFMPGTK MSFAGMKKPQ ERADVIAYLE TLKG