ID   CY550_VIRHA             Reviewed;          35 AA.
AC   P80091;
DT   01-MAY-1992, integrated into UniProtKB/Swiss-Prot.
DT   01-MAY-1992, sequence version 1.
DT   03-AUG-2022, entry version 84.
DE   RecName: Full=Cytochrome c-550;
DE   AltName: Full=Cytochrome c550;
DE   Flags: Fragment;
OS   Virgibacillus halodenitrificans (Bacillus halodenitrificans).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Virgibacillus.
OX   NCBI_TaxID=1482;
RN   [1]
RP   PROTEIN SEQUENCE, AND STRUCTURE BY NMR.
RC   STRAIN=SP. NOV./ ATCC 49067;
RX   PubMed=1312933; DOI=10.1111/j.1432-1033.1992.tb16738.x;
RA   Saraiva L.M., Denariaz G., Liu M.-Y., Payne W.J., le Gall J., Moura I.;
RT   "NMR and EPR studies on a monoheme cytochrome c550 isolated from Bacillus
RT   halodenitrificans.";
RL   Eur. J. Biochem. 204:1131-1139(1992).
CC   -!- FUNCTION: Monoheme cytochrome which functions as an electron carrier in
CC       the reduction of nitrite by membrane vesicles.
CC   -!- PTM: Binds 1 heme c group covalently per subunit.
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DR   PIR; S21191; S21191.
DR   AlphaFoldDB; P80091; -.
DR   SMR; P80091; -.
DR   STRING; 1482.BME96_13400; -.
DR   eggNOG; COG2010; Bacteria.
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   Pfam; PF13442; Cytochrome_CBB3; 1.
DR   SUPFAM; SSF46626; SSF46626; 1.
DR   PROSITE; PS51007; CYTC; 1.
PE   1: Evidence at protein level;
KW   Direct protein sequencing; Electron transport; Heme; Iron; Metal-binding;
KW   Transport.
FT   CHAIN           1..>35
FT                   /note="Cytochrome c-550"
FT                   /id="PRO_0000108384"
FT   BINDING         17
FT                   /ligand="heme c"
FT                   /ligand_id="ChEBI:CHEBI:61717"
FT                   /note="covalent"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00433"
FT   BINDING         20
FT                   /ligand="heme c"
FT                   /ligand_id="ChEBI:CHEBI:61717"
FT                   /note="covalent"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00433"
FT   BINDING         21
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   NON_TER         35
SQ   SEQUENCE   35 AA;  3353 MW;  C3B5D6D8F23004EB CRC64;
     GGSVDSAAAE EVFESNCASC HGADLSGAGP DLTQV