ID   CYC2_XENLA              Reviewed;         105 AA.
AC   Q6DKE1;
DT   12-DEC-2006, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 3.
DT   03-AUG-2022, entry version 88.
DE   RecName: Full=Cytochrome c, testis-specific;
GN   Name=cyct;
OS   Xenopus laevis (African clawed frog).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Amphibia;
OC   Batrachia; Anura; Pipoidea; Pipidae; Xenopodinae; Xenopus; Xenopus.
OX   NCBI_TaxID=8355;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
RC   TISSUE=Kidney;
RG   NIH - Xenopus Gene Collection (XGC) project;
RL   Submitted (JUN-2004) to the EMBL/GenBank/DDBJ databases.
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 (By
CC       similarity). {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Mitochondrion intermembrane space {ECO:0000250}.
CC       Note=Loosely associated with the inner membrane. {ECO:0000250}.
CC   -!- PTM: Binds 1 heme c group covalently per subunit. {ECO:0000250}.
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   EMBL; BC074190; AAH74190.1; -; mRNA.
DR   RefSeq; NP_001086101.1; NM_001092632.1.
DR   RefSeq; XP_018124196.1; XM_018268707.1.
DR   AlphaFoldDB; Q6DKE1; -.
DR   SMR; Q6DKE1; -.
DR   GeneID; 444530; -.
DR   KEGG; xla:444530; -.
DR   CTD; 444530; -.
DR   Xenbase; XB-GENE-971594; cycs.S.
DR   OMA; AQCHTIN; -.
DR   OrthoDB; 1533604at2759; -.
DR   Proteomes; UP000186698; Chromosome 6S.
DR   Bgee; 444530; Expressed in gastrula and 19 other tissues.
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   3: Inferred from homology;
KW   Acetylation; Electron transport; Heme; Iron; Metal-binding; Mitochondrion;
KW   Reference proteome; Respiratory chain; Transport.
FT   INIT_MET        1
FT                   /note="Removed"
FT                   /evidence="ECO:0000250"
FT   CHAIN           2..105
FT                   /note="Cytochrome c, testis-specific"
FT                   /id="PRO_0000266017"
FT   BINDING         15
FT                   /ligand="heme c"
FT                   /ligand_id="ChEBI:CHEBI:61717"
FT                   /note="covalent"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00433"
FT   BINDING         18
FT                   /ligand="heme c"
FT                   /ligand_id="ChEBI:CHEBI:61717"
FT                   /note="covalent"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00433"
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                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00433"
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                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00433"
FT   MOD_RES         2
FT                   /note="N-acetylglycine"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   105 AA;  11695 MW;  2EEA3D49783A526B CRC64;
     MGDVEKGKKV FVQKCSQCHT VEKGGKHKTG PNLHGLFGRK TGQAEGFSYT DANKNKGIVW
     DEDTLMVYLE NPKKYIPGTK MIFAGIKKKG ERQDLIAYLK QSTSS