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Database: UniProt
Entry: CY550_NOSS1
LinkDB: CY550_NOSS1
Original site: CY550_NOSS1 
ID   CY550_NOSS1             Reviewed;         163 AA.
AC   Q8Z044;
DT   24-JUL-2007, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2002, sequence version 1.
DT   02-DEC-2020, entry version 107.
DE   RecName: Full=Cytochrome c-550 {ECO:0000255|HAMAP-Rule:MF_01378};
DE   AltName: Full=Cytochrome c550 {ECO:0000255|HAMAP-Rule:MF_01378};
DE   AltName: Full=Low-potential cytochrome c {ECO:0000255|HAMAP-Rule:MF_01378};
DE   Flags: Precursor;
GN   Name=psbV {ECO:0000255|HAMAP-Rule:MF_01378}; OrderedLocusNames=all0259;
OS   Nostoc sp. (strain PCC 7120 / SAG 25.82 / UTEX 2576).
OC   Bacteria; Cyanobacteria; Nostocales; Nostocaceae; Nostoc.
OX   NCBI_TaxID=103690;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=PCC 7120 / SAG 25.82 / UTEX 2576;
RX   PubMed=11759840; DOI=10.1093/dnares/8.5.205;
RA   Kaneko T., Nakamura Y., Wolk C.P., Kuritz T., Sasamoto S., Watanabe A.,
RA   Iriguchi M., Ishikawa A., Kawashima K., Kimura T., Kishida Y., Kohara M.,
RA   Matsumoto M., Matsuno A., Muraki A., Nakazaki N., Shimpo S., Sugimoto M.,
RA   Takazawa M., Yamada M., Yasuda M., Tabata S.;
RT   "Complete genomic sequence of the filamentous nitrogen-fixing
RT   cyanobacterium Anabaena sp. strain PCC 7120.";
RL   DNA Res. 8:205-213(2001).
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: The cyanobacterial oxygen-evolving complex is composed of
CC       PsbO, PsbP, PsbQ, PsbV and PsbU. {ECO:0000255|HAMAP-Rule:MF_01378}.
CC   -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane {ECO:0000255|HAMAP-
CC       Rule:MF_01378}; Peripheral membrane protein {ECO:0000255|HAMAP-
CC       Rule:MF_01378}; Lumenal side {ECO:0000255|HAMAP-Rule:MF_01378}.
CC       Note=Associated with photosystem II at the lumenal side of the
CC       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; BA000019; BAB77783.1; -; Genomic_DNA.
DR   PIR; AC1839; AC1839.
DR   RefSeq; WP_010994436.1; NZ_RSCN01000032.1.
DR   SMR; Q8Z044; -.
DR   STRING; 103690.17135237; -.
DR   EnsemblBacteria; BAB77783; BAB77783; BAB77783.
DR   KEGG; ana:all0259; -.
DR   eggNOG; COG2010; Bacteria.
DR   OMA; DYMKDPT; -.
DR   OrthoDB; 1553768at2; -.
DR   Proteomes; UP000002483; Chromosome.
DR   GO; GO:0009523; C:photosystem II; IEA:UniProtKB-KW.
DR   GO; GO:0042651; C:thylakoid membrane; 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   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   Electron transport; Heme; Iron; Membrane; Metal-binding; Photosynthesis;
KW   Photosystem II; Reference proteome; Signal; Thylakoid; Transport.
FT   SIGNAL          1..26
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01378"
FT   CHAIN           27..163
FT                   /note="Cytochrome c-550"
FT                   /id="PRO_0000295595"
FT   METAL           67
FT                   /note="Iron (heme axial ligand)"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01378"
FT   METAL           118
FT                   /note="Iron (heme axial ligand)"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01378"
FT   BINDING         63
FT                   /note="Heme (covalent)"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01378"
FT   BINDING         66
FT                   /note="Heme (covalent)"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01378"
SQ   SEQUENCE   163 AA;  17759 MW;  3727FCD935F28360 CRC64;
     MFRRLIGVVV ATALLTFQLI VGSATALELD EATRTVPLNA QGDTVTLSLK QVKEGKRLFQ
     YACAQCHVGG VTKTNQNVGL EPEALALATP NRNNIEGLVD YMKNPTTYDG VEEISEIHPS
     LKSADIFTAM RNLTDKDLES IAGHILLQPK ILGDKWGGGK IYY
//
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