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Database: UniProt
Entry: CY550_EMIHU
LinkDB: CY550_EMIHU
Original site: CY550_EMIHU 
ID   CY550_EMIHU             Reviewed;         164 AA.
AC   Q4G368;
DT   24-JUL-2007, integrated into UniProtKB/Swiss-Prot.
DT   30-AUG-2005, sequence version 1.
DT   02-DEC-2020, entry version 62.
DE   RecName: Full=Cytochrome c-550 {ECO:0000255|HAMAP-Rule:MF_01378};
DE   AltName: Full=Cytochrome c550 {ECO:0000255|HAMAP-Rule:MF_01378};
DE   Flags: Precursor;
GN   Name=psbV {ECO:0000255|HAMAP-Rule:MF_01378};
OS   Emiliania huxleyi (Pontosphaera huxleyi).
OG   Plastid; Chloroplast.
OC   Eukaryota; Haptista; Haptophyta; Prymnesiophyceae; Isochrysidales;
OC   Noelaerhabdaceae; Emiliania.
OX   NCBI_TaxID=2903;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CCMP373;
RX   PubMed=16303746; DOI=10.1093/dnares/12.2.151;
RA   Sanchez-Puerta M.V., Bachvaroff T.R., Delwiche C.F.;
RT   "The complete plastid genome sequence of the haptophyte Emiliania huxleyi:
RT   a comparison to other plastid genomes.";
RL   DNA Res. 12:151-156(2005).
CC   -!- FUNCTION: Low-potential cytochrome c that plays a role in the oxygen-
CC       evolving complex of photosystem II. {ECO:0000255|HAMAP-Rule:MF_01378}.
CC   -!- COFACTOR:
CC       Name=heme; Xref=ChEBI:CHEBI:30413;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01378};
CC       Note=Binds 1 heme group covalently per subunit. {ECO:0000255|HAMAP-
CC       Rule:MF_01378};
CC   -!- SUBUNIT: Part of the oxygen-evolving complex of photosystem II.
CC       {ECO:0000255|HAMAP-Rule:MF_01378}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC       {ECO:0000255|HAMAP-Rule:MF_01378}; Peripheral membrane protein
CC       {ECO:0000255|HAMAP-Rule:MF_01378}; Lumenal side {ECO:0000255|HAMAP-
CC       Rule:MF_01378}. Note=Associated with photosystem II at the lumenal side
CC       of the thylakoid membrane. {ECO:0000255|HAMAP-Rule:MF_01378}.
CC   -!- SIMILARITY: Belongs to the cytochrome c family. PsbV subfamily.
CC       {ECO:0000255|HAMAP-Rule:MF_01378}.
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DR   EMBL; AY741371; AAX13898.1; -; Genomic_DNA.
DR   RefSeq; YP_277399.1; NC_007288.1.
DR   SMR; Q4G368; -.
DR   GeneID; 3562484; -.
DR   Proteomes; UP000013827; Unassembled WGS sequence.
DR   GO; GO:0009535; C:chloroplast thylakoid membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0009523; C:photosystem II; IEA:UniProtKB-KW.
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   GO; GO:0018063; P:cytochrome c-heme linkage; IEA:UniProtKB-UniRule.
DR   GO; GO:0019684; P:photosynthesis, light reaction; IEA:UniProtKB-UniRule.
DR   GO; GO:0022904; P:respiratory electron transport chain; IEA:InterPro.
DR   Gene3D; 1.10.760.10; -; 1.
DR   HAMAP; MF_01378; PSII_Cyt550; 1.
DR   InterPro; IPR009056; Cyt_c-like_dom.
DR   InterPro; IPR036909; Cyt_c-like_dom_sf.
DR   InterPro; IPR029490; Cytochrom_C550.
DR   InterPro; IPR016003; PSII_cyt_c550.
DR   InterPro; IPR017851; PSII_PsbV_cyt_c550.
DR   Pfam; PF14495; Cytochrom_C550; 1.
DR   PIRSF; PIRSF005890; Phot_II_cyt_c550; 1.
DR   SUPFAM; SSF46626; SSF46626; 1.
DR   TIGRFAMs; TIGR03045; PS_II_C550; 1.
DR   PROSITE; PS51007; CYTC; 1.
PE   3: Inferred from homology;
KW   Chloroplast; Electron transport; Heme; Iron; Membrane; Metal-binding;
KW   Photosynthesis; Photosystem II; Plastid; Reference proteome; Signal;
KW   Thylakoid; Transport.
FT   SIGNAL          1..27
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01378"
FT   CHAIN           28..164
FT                   /note="Cytochrome c-550"
FT                   /id="PRO_0000295610"
FT   METAL           68
FT                   /note="Iron (heme axial ligand)"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01378"
FT   METAL           119
FT                   /note="Iron (heme axial ligand)"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01378"
FT   BINDING         64
FT                   /note="Heme (covalent)"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01378"
FT   BINDING         67
FT                   /note="Heme (covalent)"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01378"
SQ   SEQUENCE   164 AA;  17709 MW;  4701A9C238263F2C CRC64;
     MALKSKFLVG SILATFILNG FSSPAQALEL DEDTRTVTLD GKGNTVVLSV EQIKRGKRLF
     NNACAICHVG GLTKTNPNVG LDVEALSLAT PPRDNVSSLV SYLKDPMTYD GADSIAELHP
     SIKSADIFPK MRSLTDEDLF AISGHILVQP KVVNEKWGGG KIYY
//
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