ID PSBV2_THEEB Reviewed; 175 AA.
AC Q8DJE2; Q7DI24;
DT 24-JUL-2007, integrated into UniProtKB/Swiss-Prot.
DT 01-MAR-2003, sequence version 1.
DT 02-DEC-2020, entry version 98.
DE RecName: Full=Cytochrome c-550-like protein;
DE Flags: Precursor;
GN Name=psbV2; OrderedLocusNames=tll1284;
OS Thermosynechococcus elongatus (strain BP-1).
OC Bacteria; Cyanobacteria; Synechococcales; Synechococcaceae;
OC Thermosynechococcus.
OX NCBI_TaxID=197221;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RA Katoh H., Itoh S., Shen J.-R., Ikeuchi M.;
RT "Cloning of the genes for cytochrome c550 and a c550-like protein from the
RT thermophilic cyanobacterium Synechococcus elongatus.";
RL Plant Cell Physiol. 40:89-89(1999).
RN [2]
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).
RN [3]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=BP-1;
RX PubMed=12240834; DOI=10.1093/dnares/9.4.123;
RA Nakamura Y., Kaneko T., Sato S., Ikeuchi M., Katoh H., Sasamoto S.,
RA Watanabe A., Iriguchi M., Kawashima K., Kimura T., Kishida Y., Kiyokawa C.,
RA Kohara M., Matsumoto M., Matsuno A., Nakazaki N., Shimpo S., Sugimoto M.,
RA Takeuchi C., Yamada M., Tabata S.;
RT "Complete genome structure of the thermophilic cyanobacterium
RT Thermosynechococcus elongatus BP-1.";
RL DNA Res. 9:123-130(2002).
RN [4]
RP PROTEIN SEQUENCE OF 35-44, AND COFACTOR.
RX PubMed=12881497; DOI=10.1093/pcp/pcg084;
RA Kerfeld C.A., Sawaya M.R., Bottin H., Tran K.T., Sugiura M., Cascio D.,
RA Desbois A., Yeates T.O., Kirilovsky D., Boussac A.;
RT "Structural and EPR characterization of the soluble form of cytochrome c-
RT 550 and of the psbV2 gene product from the cyanobacterium
RT Thermosynechococcus elongatus.";
RL Plant Cell Physiol. 44:697-706(2003).
CC -!- FUNCTION: Can partially replace cytochrome c-550 (PsbV) function.
CC -!- COFACTOR:
CC Name=heme; Xref=ChEBI:CHEBI:30413;
CC Evidence={ECO:0000305|PubMed:12881497};
CC Note=Binds 1 heme group covalently per monomer.
CC {ECO:0000305|PubMed:12881497};
CC -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane; Peripheral membrane
CC protein; Lumenal side.
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. Tyr-133 has been suggested
CC (PubMed:12881497) but this seems unlikely as it is not conserved.
CC {ECO:0000305|PubMed:12881497}.
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DR EMBL; AB052597; BAB20060.1; -; Genomic_DNA.
DR EMBL; BA000039; BAC08836.1; -; Genomic_DNA.
DR RefSeq; NP_682074.1; NC_004113.1.
DR RefSeq; WP_011057124.1; NC_004113.1.
DR PDB; 4LJI; X-ray; 1.51 A; A/B=35-175.
DR PDBsum; 4LJI; -.
DR SMR; Q8DJE2; -.
DR STRING; 197221.22295008; -.
DR EnsemblBacteria; BAC08836; BAC08836; BAC08836.
DR KEGG; tel:tll1284; -.
DR PATRIC; fig|197221.4.peg.1351; -.
DR eggNOG; COG2010; Bacteria.
DR OMA; LNCHAGG; -.
DR OrthoDB; 1691417at2; -.
DR Proteomes; UP000000440; 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: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 1: Evidence at protein level;
KW 3D-structure; Direct protein sequencing; Electron transport; Heme; Iron;
KW Membrane; Metal-binding; Photosynthesis; Photosystem II;
KW Reference proteome; Signal; Thylakoid; Transport.
FT SIGNAL 1..34
FT /evidence="ECO:0000269|PubMed:12881497"
FT CHAIN 35..175
FT /note="Cytochrome c-550-like protein"
FT /id="PRO_0000295600"
FT METAL 85
FT /note="Iron (heme axial ligand)"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00433"
FT BINDING 81
FT /note="Heme (covalent)"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00433"
FT BINDING 84
FT /note="Heme (covalent)"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00433"
FT HELIX 40..44
FT /evidence="ECO:0000244|PDB:4LJI"
FT STRAND 49..55
FT /evidence="ECO:0000244|PDB:4LJI"
FT STRAND 62..66
FT /evidence="ECO:0000244|PDB:4LJI"
FT HELIX 67..80
FT /evidence="ECO:0000244|PDB:4LJI"
FT HELIX 82..85
FT /evidence="ECO:0000244|PDB:4LJI"
FT HELIX 86..88
FT /evidence="ECO:0000244|PDB:4LJI"
FT HELIX 100..104
FT /evidence="ECO:0000244|PDB:4LJI"
FT STRAND 106..108
FT /evidence="ECO:0000244|PDB:4LJI"
FT HELIX 113..121
FT /evidence="ECO:0000244|PDB:4LJI"
FT STRAND 128..131
FT /evidence="ECO:0000244|PDB:4LJI"
FT STRAND 133..135
FT /evidence="ECO:0000244|PDB:4LJI"
FT TURN 140..142
FT /evidence="ECO:0000244|PDB:4LJI"
FT HELIX 145..161
FT /evidence="ECO:0000244|PDB:4LJI"
FT TURN 163..166
FT /evidence="ECO:0000244|PDB:4LJI"
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
//
