PETG_MARPO
ID PETG_MARPO Reviewed; 37 AA.
AC P12120;
DT 01-OCT-1989, integrated into UniProtKB/Swiss-Prot.
DT 01-OCT-1989, sequence version 1.
DT 25-MAY-2022, entry version 93.
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 Marchantia polymorpha (Liverwort) (Marchantia aquatica).
OG Plastid; Chloroplast.
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Marchantiophyta;
OC Marchantiopsida; Marchantiidae; Marchantiales; Marchantiaceae; Marchantia.
OX NCBI_TaxID=3197;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX PubMed=3199436; DOI=10.1016/0022-2836(88)90003-4;
RA Fukuzawa H., Kohchi T., Sano T., Shirai H., Umesono K., Inokuchi H.,
RA Ozeki H., Ohyama K.;
RT "Structure and organization of Marchantia polymorpha chloroplast genome.
RT III. Gene organization of the large single copy region from rbcL to
RT trnI(CAU).";
RL J. Mol. Biol. 203:333-351(1988).
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX DOI=10.1038/322572a0;
RA Ohyama K., Fukuzawa H., Kohchi T., Shirai H., Sano T., Sano S., Umesono K.,
RA Shiki Y., Takeuchi M., Chang Z., Aota S., Inokuchi H., Ozeki H.;
RT "Chloroplast gene organization deduced from complete sequence of liverwort
RT Marchantia polymorpha chloroplast DNA.";
RL Nature 322:572-574(1986).
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; X04465; CAA28104.1; -; Genomic_DNA.
DR PIR; S01541; A05054.
DR RefSeq; NP_039318.1; NC_001319.1.
DR AlphaFoldDB; P12120; -.
DR SMR; P12120; -.
DR GeneID; 2702604; -.
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_0000216388"
FT TRANSMEM 5..25
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00432"
SQ SEQUENCE 37 AA; 4076 MW; CCEEACA394820794 CRC64;
MVEALLSGIV LGLIPITLLG LFVTAYLQYR RGDQLDL
