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Database: UniProt
Entry: PSBV2_THEEB
LinkDB: PSBV2_THEEB
Original site: PSBV2_THEEB 
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
//
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