ID   CYC31_DESVU             Reviewed;          23 AA.
AC   P81149;
DT   20-DEC-2005, integrated into UniProtKB/Swiss-Prot.
DT   01-JAN-1998, sequence version 1.
DT   03-AUG-2022, entry version 47.
DE   RecName: Full=Cytochrome c3-1;
DE   Flags: Fragment;
OS   Desulfovibrio vulgaris.
OC   Bacteria; Proteobacteria; Deltaproteobacteria; Desulfovibrionales;
OC   Desulfovibrionaceae; Desulfovibrio.
OX   NCBI_TaxID=881;
RN   [1] {ECO:0000305}
RP   PROTEIN SEQUENCE.
RC   STRAIN=NCIMB 8456 {ECO:0000269|PubMed:8388770};
RX   PubMed=8388770; DOI=10.1139/m93-059;
RA   Kwoh D.Y., Vedvick T.S., McCue A.F., Gevertz D.;
RT   "Rapid comparison of the cytochrome c3 gene from nine strains of
RT   Desulfovibrio vulgaris using polymerase chain reaction amplification.";
RL   Can. J. Microbiol. 39:402-411(1993).
CC   -!- FUNCTION: Participates in sulfate respiration coupled with
CC       phosphorylation by transferring electrons from the enzyme dehydrogenase
CC       to ferredoxin. {ECO:0000250|UniProtKB:P00132}.
CC   -!- SUBCELLULAR LOCATION: Periplasm {ECO:0000250}.
CC   -!- PTM: Binds 4 heme groups per subunit. {ECO:0000250|UniProtKB:P00132}.
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DR   GO; GO:0042597; C:periplasmic space; IEA:UniProtKB-SubCell.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0009061; P:anaerobic respiration; IEA:UniProtKB-KW.
PE   1: Evidence at protein level;
KW   Direct protein sequencing; Electron transport; Heme; Iron; Metal-binding;
KW   Periplasm; Sulfate respiration; Transport.
FT   CHAIN           <1..>23
FT                   /note="Cytochrome c3-1"
FT                   /id="PRO_0000108362"
FT   REGION          1..23
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   BINDING         23
FT                   /ligand="heme"
FT                   /ligand_id="ChEBI:CHEBI:30413"
FT                   /ligand_label="1"
FT                   /ligand_part="Fe"
FT                   /ligand_part_id="ChEBI:CHEBI:18248"
FT                   /note="axial binding residue"
FT                   /evidence="ECO:0000250|UniProtKB:P00132"
FT   NON_TER         1
FT                   /evidence="ECO:0000303|PubMed:8388770"
FT   NON_TER         23
FT                   /evidence="ECO:0000303|PubMed:8388770"
SQ   SEQUENCE   23 AA;  2478 MW;  1114D6A4C22FAD6B CRC64;
     AAPKAPADGL KMDKTKQXVV FNH