CY550_CYAPA
ID CY550_CYAPA Reviewed; 162 AA.
AC P48263;
DT 01-FEB-1996, integrated into UniProtKB/Swiss-Prot.
DT 01-FEB-1996, sequence version 1.
DT 03-AUG-2022, entry version 101.
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 Cyanophora paradoxa.
OG Plastid; Cyanelle.
OC Eukaryota; Glaucocystophyceae; Cyanophoraceae; Cyanophora.
OX NCBI_TaxID=2762;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=UTEX LB 555 / Pringsheim;
RA Stirewalt V.L., Michalowski C.B., Loeffelhardt W., Bohnert H.J.,
RA Bryant D.A.;
RT "Nucleotide sequence of the cyanelle DNA from Cyanophora paradoxa.";
RL Plant Mol. Biol. Rep. 13:327-332(1995).
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=UTEX LB 555 / Pringsheim;
RA Loeffelhardt W., Stirewalt V.L., Michalowski C.B., Annarella M.,
RA Farley J.Y., Schluchter W.M., Chung S., Newmann-Spallart C., Steiner J.M.,
RA Jakowitsch J., Bohnert H.J., Bryant D.A.;
RT "The complete sequence of the cyanelle genome of Cyanophora paradoxa: the
RT genetic complexity of a primitive plastid.";
RL (In) Schenk H.E.A., Herrmann R., Jeon K.W., Mueller N.E., Schwemmler W.
RL (eds.);
RL Eukaryotism and symbiosis, pp.40-48, Springer-Verlag, Heidelberg (1997).
RN [3]
RP SUBUNIT, AND ASSOCIATION WITH PHOTOSYSTEM II.
RC STRAIN=NIES 547;
RX PubMed=11479380; DOI=10.1093/pcp/pce092;
RA Shibata M., Kashino Y., Satoh K., Koike H.;
RT "Isolation and characterization of oxygen-evolving thylakoid membranes and
RT photosystem II particles from a glaucocystophyte, Cyanophora paradoxa.";
RL Plant Cell Physiol. 42:733-741(2001).
RN [4]
RP SUBUNIT.
RX PubMed=16176274; DOI=10.1111/j.1742-4658.2005.04912.x;
RA Enami I., Suzuki T., Tada O., Nakada Y., Nakamura K., Tohri A., Ohta H.,
RA Inoue I., Shen J.-R.;
RT "Distribution of the extrinsic proteins as a potential marker for the
RT evolution of photosynthetic oxygen-evolving photosystem II.";
RL FEBS J. 272:5020-5030(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 c; Xref=ChEBI:CHEBI:61717;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01378};
CC Note=Binds 1 heme c group covalently per subunit. {ECO:0000255|HAMAP-
CC Rule:MF_01378};
CC -!- SUBUNIT: With psbO and psbU forms the oxygen-evolving complex of
CC photosystem II. {ECO:0000269|PubMed:11479380,
CC ECO:0000269|PubMed:16176274}.
CC -!- SUBCELLULAR LOCATION: Plastid, cyanelle thylakoid membrane
CC {ECO:0000305}; Peripheral membrane protein {ECO:0000305}; Lumenal side
CC {ECO:0000305}. Note=Associated with photosystem II at the lumenal side
CC of the thylakoid membrane. {ECO:0000305}.
CC -!- SIMILARITY: Belongs to the cytochrome c family. PsbV subfamily.
CC {ECO:0000255|HAMAP-Rule:MF_01378}.
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DR EMBL; U30821; AAA81291.1; -; Genomic_DNA.
DR PIR; T06948; T06948.
DR RefSeq; NP_043260.1; NC_001675.1.
DR AlphaFoldDB; P48263; -.
DR SMR; P48263; -.
DR GeneID; 801683; -.
DR GO; GO:0033115; C:cyanelle 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 1: Evidence at protein level;
KW Cyanelle; Electron transport; Heme; Iron; Membrane; Metal-binding;
KW Photosynthesis; Photosystem II; Plastid; Signal; Thylakoid; Transport.
FT SIGNAL 1..26
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01378"
FT CHAIN 27..162
FT /note="Cytochrome c-550"
FT /id="PRO_0000006513"
FT BINDING 62
FT /ligand="heme c"
FT /ligand_id="ChEBI:CHEBI:61717"
FT /note="covalent"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01378"
FT BINDING 65
FT /ligand="heme c"
FT /ligand_id="ChEBI:CHEBI:61717"
FT /note="covalent"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01378"
FT BINDING 66
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|HAMAP-Rule:MF_01378"
FT BINDING 117
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|HAMAP-Rule:MF_01378"
SQ SEQUENCE 162 AA; 17863 MW; 220CDBD8A6B2ECD1 CRC64;
MFNKNFWTSI IIGCLFCTIT YSGVNAAALD EETRTVALNS TETVVLTPEQ VKRGKRLFNS
TCGICHVGGI TKTNPNVGLD SEALALATPP RNNIESLVDY MKNPTSYDGS EEIYDIHPSI
RSADAFPKMR NLTEEDLYDI AGHILLSPKI LPSQWGGGKI YY
