ID   CY553_HELPJ             Reviewed;          96 AA.
AC   Q9ZJZ9;
DT   23-JAN-2002, integrated into UniProtKB/Swiss-Prot.
DT   01-MAY-1999, sequence version 1.
DT   03-AUG-2022, entry version 115.
DE   RecName: Full=Cytochrome c-553;
DE   AltName: Full=Cytochrome c553;
DE   Flags: Precursor;
GN   OrderedLocusNames=jhp_1148;
OS   Helicobacter pylori (strain J99 / ATCC 700824) (Campylobacter pylori J99).
OC   Bacteria; Proteobacteria; Epsilonproteobacteria; Campylobacterales;
OC   Helicobacteraceae; Helicobacter.
OX   NCBI_TaxID=85963;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=J99 / ATCC 700824;
RX   PubMed=9923682; DOI=10.1038/16495;
RA   Alm R.A., Ling L.-S.L., Moir D.T., King B.L., Brown E.D., Doig P.C.,
RA   Smith D.R., Noonan B., Guild B.C., deJonge B.L., Carmel G., Tummino P.J.,
RA   Caruso A., Uria-Nickelsen M., Mills D.M., Ives C., Gibson R., Merberg D.,
RA   Mills S.D., Jiang Q., Taylor D.E., Vovis G.F., Trust T.J.;
RT   "Genomic sequence comparison of two unrelated isolates of the human gastric
RT   pathogen Helicobacter pylori.";
RL   Nature 397:176-180(1999).
CC   -!- FUNCTION: Natural electron acceptor for a formate dehydrogenase.
CC   -!- SUBCELLULAR LOCATION: Periplasm.
CC   -!- PTM: Binds 1 heme c group covalently per subunit.
CC   -!- SIMILARITY: Belongs to the cytochrome c family. {ECO:0000305}.
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DR   EMBL; AE001439; AAD06721.1; -; Genomic_DNA.
DR   PIR; F71843; F71843.
DR   RefSeq; WP_000756037.1; NZ_CP011330.1.
DR   AlphaFoldDB; Q9ZJZ9; -.
DR   SMR; Q9ZJZ9; -.
DR   STRING; 85963.jhp_1148; -.
DR   EnsemblBacteria; AAD06721; AAD06721; jhp_1148.
DR   KEGG; hpj:jhp_1148; -.
DR   PATRIC; fig|85963.30.peg.1428; -.
DR   eggNOG; COG2863; Bacteria.
DR   OMA; IVNMMTE; -.
DR   Proteomes; UP000000804; Chromosome.
DR   GO; GO:0042597; C:periplasmic space; IEA:UniProtKB-SubCell.
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; IPR008168; Cyt_C_IC.
DR   Pfam; PF13442; Cytochrome_CBB3; 1.
DR   PRINTS; PR00605; CYTCHROMECIC.
DR   SUPFAM; SSF46626; SSF46626; 1.
DR   PROSITE; PS51007; CYTC; 1.
PE   3: Inferred from homology;
KW   Electron transport; Heme; Iron; Metal-binding; Periplasm; Signal;
KW   Transport.
FT   SIGNAL          1..19
FT                   /evidence="ECO:0000250"
FT   CHAIN           20..96
FT                   /note="Cytochrome c-553"
FT                   /id="PRO_0000006538"
FT   BINDING         29
FT                   /ligand="heme c"
FT                   /ligand_id="ChEBI:CHEBI:61717"
FT                   /note="covalent"
FT   BINDING         32
FT                   /ligand="heme c"
FT                   /ligand_id="ChEBI:CHEBI:61717"
FT                   /note="covalent"
FT   BINDING         33
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         73
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"
SQ   SEQUENCE   96 AA;  10354 MW;  3E607AE5D422AD82 CRC64;
     MKKVIVALGV LAFANVLMAT DVKALVKGCA ACHGVKFEKK ALGKSKIVNM MSEKEIEEDL
     MAFKSGANKN PVMTAQAKKL SDEDIKALAK YIPTLK