PETG_MAIZE
ID PETG_MAIZE Reviewed; 37 AA.
AC P69457; P12121; P32973;
DT 15-MAR-2005, integrated into UniProtKB/Swiss-Prot.
DT 15-MAR-2005, sequence version 1.
DT 25-MAY-2022, entry version 69.
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}; Synonyms=petE;
OS Zea mays (Maize).
OG Plastid; Chloroplast.
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; Liliopsida; Poales; Poaceae; PACMAD clade;
OC Panicoideae; Andropogonodae; Andropogoneae; Tripsacinae; Zea.
OX NCBI_TaxID=4577;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC STRAIN=cv. FR9cms X FR37;
RX PubMed=2922397; DOI=10.1073/pnas.86.5.1534;
RA Haley J., Bogorad L.;
RT "A 4-kDa maize chloroplast polypeptide associated with the cytochrome b6-f
RT complex: subunit 5, encoded by the chloroplast petE gene.";
RL Proc. Natl. Acad. Sci. U.S.A. 86:1534-1538(1989).
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=cv. B73;
RX PubMed=7666415; DOI=10.1006/jmbi.1995.0460;
RA Maier R.M., Neckermann K., Igloi G.L., Koessel H.;
RT "Complete sequence of the maize chloroplast genome: gene content, hotspots
RT of divergence and fine tuning of genetic information by transcript
RT editing.";
RL J. Mol. Biol. 251:614-628(1995).
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; J04502; AAA84480.1; -; Genomic_DNA.
DR EMBL; X86563; CAA60304.1; -; Genomic_DNA.
DR PIR; A32159; A32159.
DR RefSeq; NP_043043.1; NC_001666.2.
DR AlphaFoldDB; P69457; -.
DR SMR; P69457; -.
DR PaxDb; P69457; -.
DR GeneID; 845194; -.
DR KEGG; zma:845194; -.
DR MaizeGDB; 56865; -.
DR OrthoDB; 1641963at2759; -.
DR Proteomes; UP000007305; Chloroplast.
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 Reference proteome; Thylakoid; Transmembrane; Transmembrane helix;
KW Transport.
FT CHAIN 1..37
FT /note="Cytochrome b6-f complex subunit 5"
FT /id="PRO_0000216387"
FT TRANSMEM 5..25
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00432"
SQ SEQUENCE 37 AA; 4170 MW; A98EA4D30CB983C5 CRC64;
MIEVFLFGIV LGLIPITLAG LFVTAYLQYR RGDQLDL