PSBV2_THEVL
ID PSBV2_THEVL Reviewed; 175 AA.
AC Q9ET95;
DT 24-JUL-2007, integrated into UniProtKB/Swiss-Prot.
DT 01-MAR-2001, sequence version 1.
DT 03-AUG-2022, entry version 69.
DE RecName: Full=Cytochrome c-550-like protein;
DE Flags: Precursor;
GN Name=psbV2;
OS Thermostichus vulcanus (Synechococcus vulcanus).
OC Bacteria; Cyanobacteria; Thermostichales; Thermostichaceae; Thermostichus.
OX NCBI_TaxID=32053;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX PubMed=11427679; DOI=10.1093/pcp/pce074;
RA Katoh H., Itoh S., Shen J.-R., Ikeuchi M.;
RT "Functional analysis of psbV and a novel c-type cytochrome gene psbV2 of
RT the thermophilic cyanobacterium Thermosynechococcus elongatus strain BP-
RT 1.";
RL Plant Cell Physiol. 42:599-607(2001).
CC -!- FUNCTION: Possible low-potential cytochrome c. {ECO:0000305}.
CC -!- COFACTOR:
CC Name=heme c; Xref=ChEBI:CHEBI:61717; Evidence={ECO:0000305};
CC Note=Binds 1 heme c group covalently per subunit. {ECO:0000305};
CC -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane {ECO:0000305};
CC Peripheral membrane protein {ECO:0000305}; Lumenal side {ECO:0000305}.
CC -!- SIMILARITY: Belongs to the cytochrome c family. PsbV subfamily.
CC {ECO:0000305}.
CC -!- CAUTION: In psbV2 it is not clear which residue serves as the second
CC axial ligand for the heme group. {ECO:0000305}.
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DR EMBL; AB052598; BAB20064.1; -; Genomic_DNA.
DR AlphaFoldDB; Q9ET95; -.
DR SMR; Q9ET95; -.
DR GO; GO:0009523; C:photosystem II; IEA:UniProtKB-KW.
DR GO; GO:0031676; C:plasma membrane-derived 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:0015979; P:photosynthesis; IEA:UniProtKB-KW.
DR GO; GO:0022904; P:respiratory electron transport chain; 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; IPR029490; Cytochrom_C550.
DR InterPro; IPR016003; PSII_cyt_c550.
DR InterPro; IPR017490; PSII_cyt_PsbV2.
DR Pfam; PF14495; Cytochrom_C550; 1.
DR PIRSF; PIRSF005890; Phot_II_cyt_c550; 1.
DR SUPFAM; SSF46626; SSF46626; 1.
DR TIGRFAMs; TIGR03046; PS_II_psbV2; 1.
DR PROSITE; PS51007; CYTC; 1.
PE 3: Inferred from homology;
KW Electron transport; Heme; Iron; Membrane; Metal-binding; Photosynthesis;
KW Photosystem II; Signal; Thylakoid; Transport.
FT SIGNAL 1..34
FT /evidence="ECO:0000255"
FT CHAIN 35..175
FT /note="Cytochrome c-550-like protein"
FT /id="PRO_0000295609"
FT BINDING 81
FT /ligand="heme c"
FT /ligand_id="ChEBI:CHEBI:61717"
FT /note="covalent"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00433"
FT BINDING 84
FT /ligand="heme c"
FT /ligand_id="ChEBI:CHEBI:61717"
FT /note="covalent"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00433"
FT BINDING 85
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 175 AA; 19118 MW; FB95EE3348651C44 CRC64;
MYQPHFWQRS IGWLCGGLLI LLLGWTIAPA TALAAAGVDN YVIQYLKVTD TVELPVNDRG
ETKTFTAVDL TRGKRLFEEN CKNCHVGGST LPNPLVSLSL KDLKGATPPR DTIASLVAFQ
RSPKSYDGSE ESYSCRRVSE DWLTTEQLET LAAFILRAAA VAPGWGVESF PDSAP
