ID   CYC5_PSEME              Reviewed;          87 AA.
AC   P00121;
DT   21-JUL-1986, integrated into UniProtKB/Swiss-Prot.
DT   21-JUL-1986, sequence version 1.
DT   03-AUG-2022, entry version 81.
DE   RecName: Full=Cytochrome c5;
OS   Pseudomonas mendocina.
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Pseudomonadales;
OC   Pseudomonadaceae; Pseudomonas.
OX   NCBI_TaxID=300;
RN   [1]
RP   PROTEIN SEQUENCE.
RC   STRAIN=CH110;
RA   Ambler R.P., Taylor E.;
RT   "Amino acid sequence of cytochrome c-5 from Pseudomonas mendocina.";
RL   Biochem. Soc. Trans. 1:166-168(1973).
CC   -!- FUNCTION: It is unreactive with cytochrome c reductase or oxidase but
CC       seems to function as an intermediate in nitrate respiration of
CC       facultative anaerobic pseudmonads.
CC   -!- SUBUNIT: Homodimer.
CC   -!- PTM: Binds 1 heme group per subunit.
CC   -!- SIMILARITY: Belongs to the cytochrome c family. {ECO:0000305}.
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DR   PIR; A00114; CCPSVM.
DR   AlphaFoldDB; P00121; -.
DR   SMR; P00121; -.
DR   STRING; 1001585.MDS_0305; -.
DR   PRIDE; P00121; -.
DR   GO; GO:0009055; F:electron transfer activity; IEA:InterPro.
DR   GO; GO:0020037; F:heme binding; IEA:InterPro.
DR   GO; GO:0005506; F:iron ion binding; IEA:InterPro.
DR   Gene3D; 1.10.760.10; -; 1.
DR   InterPro; IPR009056; Cyt_c-like_dom.
DR   InterPro; IPR036909; Cyt_c-like_dom_sf.
DR   InterPro; IPR002323; Cyt_CIE.
DR   PANTHER; PTHR40942; PTHR40942; 1.
DR   Pfam; PF13442; Cytochrome_CBB3; 1.
DR   PRINTS; PR00607; CYTCHROMECIE.
DR   SUPFAM; SSF46626; SSF46626; 1.
PE   1: Evidence at protein level;
KW   Direct protein sequencing; Disulfide bond; Electron transport; Heme; Iron;
KW   Metal-binding; Transport.
FT   CHAIN           1..87
FT                   /note="Cytochrome c5"
FT                   /id="PRO_0000108367"
FT   BINDING         19
FT                   /ligand="heme"
FT                   /ligand_id="ChEBI:CHEBI:30413"
FT                   /note="covalent"
FT   BINDING         22
FT                   /ligand="heme"
FT                   /ligand_id="ChEBI:CHEBI:30413"
FT                   /note="covalent"
FT   BINDING         23
FT                   /ligand="heme"
FT                   /ligand_id="ChEBI:CHEBI:30413"
FT                   /ligand_part="Fe"
FT                   /ligand_part_id="ChEBI:CHEBI:18248"
FT                   /note="axial binding residue"
FT   BINDING         63
FT                   /ligand="heme"
FT                   /ligand_id="ChEBI:CHEBI:30413"
FT                   /ligand_part="Fe"
FT                   /ligand_part_id="ChEBI:CHEBI:18248"
FT                   /note="axial binding residue"
FT   DISULFID        69..72
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   87 AA;  8657 MW;  90159AE3F0ADE8FA CRC64;
     AASAGGGARS ADDIIAKHCN ACHGAGVLGA PKIGDTAAWK ERADHQGGLD GILAKAISGI
     NAMPPKGTCA DCSDDELREA IQKMSGL