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PETG_WELMI
ID   PETG_WELMI              Reviewed;          37 AA.
AC   B2Y1X8; B7ZI30;
DT   25-NOV-2008, integrated into UniProtKB/Swiss-Prot.
DT   01-JUL-2008, sequence version 1.
DT   25-MAY-2022, entry version 35.
DE   RecName: Full=Cytochrome b6-f complex subunit 5 {ECO:0000255|HAMAP-Rule:MF_00432};
DE   AltName: Full=Cytochrome b6-f complex subunit PetG {ECO:0000255|HAMAP-Rule:MF_00432};
DE   AltName: Full=Cytochrome b6-f complex subunit V {ECO:0000255|HAMAP-Rule:MF_00432};
GN   Name=petG {ECO:0000255|HAMAP-Rule:MF_00432};
OS   Welwitschia mirabilis (Tree tumbo) (Welwitschia bainesii).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Gnetopsida; Gnetidae; Welwitschiales; Welwitschiaceae;
OC   Welwitschia.
OX   NCBI_TaxID=3377;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=18452621; DOI=10.1186/1471-2148-8-130;
RA   McCoy S.R., Kuehl J.V., Boore J.L., Raubeson L.A.;
RT   "The complete plastid genome sequence of Welwitschia mirabilis: an
RT   unusually compact plastome with accelerated divergence rates.";
RL   BMC Evol. Biol. 8:130-130(2008).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=19166950; DOI=10.1016/j.ympev.2008.12.026;
RA   Wu C.-S., Lai Y.-T., Lin C.-P., Wang Y.-N., Chaw S.-M.;
RT   "Evolution of reduced and compact chloroplast genomes (cpDNAs) in
RT   gnetophytes: Selection toward a lower-cost strategy.";
RL   Mol. Phylogenet. Evol. 52:115-124(2009).
CC   -!- FUNCTION: Component of the cytochrome b6-f complex, which mediates
CC       electron transfer between photosystem II (PSII) and photosystem I
CC       (PSI), cyclic electron flow around PSI, and state transitions. PetG is
CC       required for either the stability or assembly of the cytochrome b6-f
CC       complex. {ECO:0000255|HAMAP-Rule:MF_00432}.
CC   -!- SUBUNIT: The 4 large subunits of the cytochrome b6-f complex are
CC       cytochrome b6, subunit IV (17 kDa polypeptide, PetD), cytochrome f and
CC       the Rieske protein, while the 4 small subunits are PetG, PetL, PetM and
CC       PetN. The complex functions as a dimer. {ECO:0000255|HAMAP-
CC       Rule:MF_00432}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC       {ECO:0000255|HAMAP-Rule:MF_00432}; Single-pass membrane protein
CC       {ECO:0000255|HAMAP-Rule:MF_00432}.
CC   -!- SIMILARITY: Belongs to the PetG family. {ECO:0000255|HAMAP-
CC       Rule:MF_00432}.
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DR   EMBL; EU342371; ABY26808.1; -; Genomic_DNA.
DR   EMBL; AP009568; BAH11210.1; -; Genomic_DNA.
DR   RefSeq; YP_001876595.1; NC_010654.1.
DR   AlphaFoldDB; B2Y1X8; -.
DR   SMR; B2Y1X8; -.
DR   GeneID; 6276172; -.
DR   GO; GO:0009535; C:chloroplast thylakoid membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0009512; C:cytochrome b6f complex; IEA:InterPro.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0045158; F:electron transporter, transferring electrons within cytochrome b6/f complex of photosystem II activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0017004; P:cytochrome complex assembly; IEA:UniProtKB-UniRule.
DR   GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-KW.
DR   HAMAP; MF_00432; Cytb6_f_PetG; 1.
DR   InterPro; IPR003683; Cyt_6/f_cplx_su5.
DR   InterPro; IPR036099; Cyt_6/f_cplx_su5_sf.
DR   PANTHER; PTHR35516; PTHR35516; 1.
DR   Pfam; PF02529; PetG; 1.
DR   PIRSF; PIRSF000034; Cyt_b6-f_V; 1.
DR   SUPFAM; SSF103446; SSF103446; 1.
PE   3: Inferred from homology;
KW   Chloroplast; Electron transport; Membrane; Photosynthesis; Plastid;
KW   Thylakoid; Transmembrane; Transmembrane helix; Transport.
FT   CHAIN           1..37
FT                   /note="Cytochrome b6-f complex subunit 5"
FT                   /id="PRO_0000355411"
FT   TRANSMEM        5..25
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00432"
SQ   SEQUENCE   37 AA;  4092 MW;  CB830AA284820794 CRC64;
     MVETLLSGIV LGLIPITLVG LFVTAYLQYR RGDQLDI
 
 
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