ID   CY551_PSEFC             Reviewed;          82 AA.
AC   P00100;
DT   21-JUL-1986, integrated into UniProtKB/Swiss-Prot.
DT   21-JUL-1986, sequence version 1.
DT   03-AUG-2022, entry version 87.
DE   RecName: Full=Cytochrome c-551;
DE   AltName: Full=Cytochrome C8;
DE   AltName: Full=Cytochrome c551;
OS   Pseudomonas fluorescens biotype C.
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Pseudomonadales;
OC   Pseudomonadaceae; Pseudomonas.
OX   NCBI_TaxID=335;
RN   [1]
RP   PROTEIN SEQUENCE.
RC   STRAIN=ATCC 17400 / DSM 50117 / ICPB 2656-18 / NBRC 15833 / NCIMB 10460 /
RC   Stanier C-18;
RX   PubMed=4352718; DOI=10.1042/bj1310485;
RA   Ambler R.P., Wynn M.;
RT   "The amino acid sequences of cytochromes c-551 from three species of
RT   Pseudomonas.";
RL   Biochem. J. 131:485-498(1973).
RN   [2]
RP   PARTIAL PROTEIN SEQUENCE.
RC   STRAIN=181, 191, 204, 217, 50, and 8376;
RX   PubMed=4362497; DOI=10.1042/bj1370003;
RA   Ambler R.P.;
RT   "The evolutionary stability of cytochrome c-551 in Pseudomonas aeruginosa
RT   and Pseudomonas fluorescens biotype C.";
RL   Biochem. J. 137:3-14(1974).
CC   -!- FUNCTION: This is a prokaryotic monoheme cytochrome, unreactive with
CC       mitochondrial cytochrome C oxidase or reductase. It functions in
CC       nitrite and nitrate respiration in Pseudomonas, but it is also found in
CC       other bacteria.
CC   -!- PTM: Binds 1 heme c group covalently per subunit.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   PIR; A00092; CCPS5F.
DR   AlphaFoldDB; P00100; -.
DR   SMR; P00100; -.
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; IPR002324; Cyt_c_ID.
DR   Pfam; PF00034; Cytochrom_C; 1.
DR   PRINTS; PR00606; CYTCHROMECID.
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..82
FT                   /note="Cytochrome c-551"
FT                   /id="PRO_0000108396"
FT   BINDING         12
FT                   /ligand="heme c"
FT                   /ligand_id="ChEBI:CHEBI:61717"
FT                   /note="covalent"
FT   BINDING         15
FT                   /ligand="heme c"
FT                   /ligand_id="ChEBI:CHEBI:61717"
FT                   /note="covalent"
FT   BINDING         16
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         61
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   VARIANT         1
FT                   /note="E -> D (in strain: 181, 217, 191 and 204)"
FT   VARIANT         18
FT                   /note="I -> V (in strain: 50)"
FT   VARIANT         29
FT                   /note="E -> D (in strain: 50)"
FT   VARIANT         46
FT                   /note="G -> S (in strain: 181, 217 and 191)"
FT   VARIANT         47
FT                   /note="H -> R (in strain: 50)"
FT   VARIANT         63
FT                   /note="P -> A (in strain: 181 and 217)"
FT   VARIANT         65
FT                   /note="Q -> P (in strain: 181, 217 and 204)"
FT   VARIANT         70
FT                   /note="E -> Q (in strain: 191)"
SQ   SEQUENCE   82 AA;  8538 MW;  0E93BAD232EC4D5D CRC64;
     EDGAALFKSK PCAACHTIDS KMVGPALKEV AAKNAGVKDA DKTLAGHIKN GTQGNWGPIP
     MPPNQVTDAE ALTLAQWVLS LK