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Database: UniProt
Entry: A0A139X0W1_9CYAN
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ID   A0A139X0W1_9CYAN        Unreviewed;       163 AA.
AC   A0A139X0W1;
DT   11-MAY-2016, integrated into UniProtKB/TrEMBL.
DT   11-MAY-2016, sequence version 1.
DT   12-AUG-2020, entry version 20.
DE   RecName: Full=Cytochrome c-550 {ECO:0000256|HAMAP-Rule:MF_01378};
DE   AltName: Full=Cytochrome c550 {ECO:0000256|HAMAP-Rule:MF_01378};
DE   AltName: Full=Low-potential cytochrome c {ECO:0000256|HAMAP-Rule:MF_01378};
GN   Name=psbV {ECO:0000256|HAMAP-Rule:MF_01378,
GN   ECO:0000313|EMBL:KYC38328.1};
GN   ORFNames=WA1_39035 {ECO:0000313|EMBL:KYC38328.1};
OS   Scytonema hofmannii PCC 7110.
OC   Bacteria; Cyanobacteria; Nostocales; Scytonemataceae; Scytonema.
OX   NCBI_TaxID=128403 {ECO:0000313|EMBL:KYC38328.1, ECO:0000313|Proteomes:UP000076925};
RN   [1] {ECO:0000313|EMBL:KYC38328.1, ECO:0000313|Proteomes:UP000076925}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=PCC 7110 {ECO:0000313|EMBL:KYC38328.1,
RC   ECO:0000313|Proteomes:UP000076925};
RX   PubMed=23221676; DOI=10.1093/gbe/evs117;
RA   Dagan T., Roettger M., Stucken K., Landan G., Koch R., Major P.,
RA   Gould S.B., Goremykin V.V., Rippka R., Tandeau de Marsac N., Gugger M.,
RA   Lockhart P.J., Allen J.F., Brune I., Maus I., Puhler A., Martin W.F.;
RT   "Genomes of Stigonematalean cyanobacteria (subsection V) and the evolution
RT   of oxygenic photosynthesis from prokaryotes to plastids.";
RL   Genome Biol. Evol. 5:31-44(2013).
CC   -!- FUNCTION: Low-potential cytochrome c that plays a role in the oxygen-
CC       evolving complex of photosystem II. {ECO:0000256|HAMAP-Rule:MF_01378}.
CC   -!- COFACTOR:
CC       Name=heme; Xref=ChEBI:CHEBI:30413;
CC         Evidence={ECO:0000256|HAMAP-Rule:MF_01378};
CC       Note=Binds 1 heme group covalently per subunit. {ECO:0000256|HAMAP-
CC       Rule:MF_01378};
CC   -!- SUBUNIT: The cyanobacterial oxygen-evolving complex is composed of
CC       PsbO, PsbP, PsbQ, PsbV and PsbU. {ECO:0000256|HAMAP-Rule:MF_01378}.
CC   -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane {ECO:0000256|HAMAP-
CC       Rule:MF_01378}; Peripheral membrane protein {ECO:0000256|HAMAP-
CC       Rule:MF_01378}; Lumenal side {ECO:0000256|HAMAP-Rule:MF_01378}.
CC       Note=Associated with photosystem II at the lumenal side of the
CC       thylakoid membrane. {ECO:0000256|HAMAP-Rule:MF_01378}.
CC   -!- SIMILARITY: Belongs to the cytochrome c family. PsbV subfamily.
CC       {ECO:0000256|ARBA:ARBA00010433, ECO:0000256|HAMAP-Rule:MF_01378}.
CC   -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC       whole genome shotgun (WGS) entry which is preliminary data.
CC       {ECO:0000313|EMBL:KYC38328.1}.
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DR   EMBL; ANNX02000042; KYC38328.1; -; Genomic_DNA.
DR   RefSeq; WP_017746014.1; NZ_KQ976354.1.
DR   EnsemblBacteria; KYC38328; KYC38328; WA1_39035.
DR   Proteomes; UP000076925; Unassembled WGS sequence.
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 {ECO:0000256|HAMAP-Rule:MF_01378};
KW   Heme {ECO:0000256|ARBA:ARBA00022617, ECO:0000256|HAMAP-Rule:MF_01378,
KW   ECO:0000256|PROSITE-ProRule:PRU00433};
KW   Iron {ECO:0000256|ARBA:ARBA00023004, ECO:0000256|HAMAP-Rule:MF_01378,
KW   ECO:0000256|PROSITE-ProRule:PRU00433};
KW   Membrane {ECO:0000256|ARBA:ARBA00023136, ECO:0000256|HAMAP-Rule:MF_01378};
KW   Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW   Rule:MF_01378, ECO:0000256|PROSITE-ProRule:PRU00433};
KW   Photosynthesis {ECO:0000256|ARBA:ARBA00022531, ECO:0000256|HAMAP-
KW   Rule:MF_01378};
KW   Photosystem II {ECO:0000256|ARBA:ARBA00023276, ECO:0000256|HAMAP-
KW   Rule:MF_01378}; Reference proteome {ECO:0000313|Proteomes:UP000076925};
KW   Thylakoid {ECO:0000256|ARBA:ARBA00023078, ECO:0000256|HAMAP-Rule:MF_01378};
KW   Transport {ECO:0000256|HAMAP-Rule:MF_01378}.
FT   DOMAIN          50..149
FT                   /note="Cytochrome c"
FT                   /evidence="ECO:0000259|PROSITE:PS51007"
FT   METAL           67
FT                   /note="Iron (heme axial ligand)"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01378"
FT   METAL           118
FT                   /note="Iron (heme axial ligand)"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01378"
FT   BINDING         63
FT                   /note="Heme (covalent)"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01378"
FT   BINDING         66
FT                   /note="Heme (covalent)"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01378"
SQ   SEQUENCE   163 AA;  17691 MW;  AF5D58F6EAA1273A CRC64;
     MLRRVIGILA ATVLLTFQFI IGDASAVELD AATRTVKLND QGDTVVLSLQ QVKSGKSLFQ
     FACAQCHVGG VTKTNQNVGL EPESLAGATP PRDNIEALVD YMKNPTTYDG EEEIAELHPS
     TKSADIFTEM RNLKDDDLVD IAGHILLQPK VIGSRWGGGK IYY
//
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