PETG_CUSEX
ID PETG_CUSEX Reviewed; 37 AA.
AC A8W3E0;
DT 25-NOV-2008, integrated into UniProtKB/Swiss-Prot.
DT 15-JAN-2008, sequence version 1.
DT 25-MAY-2022, entry version 41.
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 Cuscuta exaltata (Tall dodder).
OG Plastid.
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC asterids; lamiids; Solanales; Convolvulaceae; Cuscuteae; Cuscuta;
OC Cuscuta subgen. Monogynella.
OX NCBI_TaxID=476139;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX PubMed=17956636; DOI=10.1186/1471-2229-7-57;
RA McNeal J.R., Kuehl J.V., Boore J.L., dePamphilis C.W.;
RT "Complete plastid genome sequences suggest strong selection for retention
RT of photosynthetic genes in the parasitic plant genus Cuscuta.";
RL BMC Plant Biol. 7:57-57(2007).
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 membrane {ECO:0000305}; Single-pass
CC membrane protein {ECO:0000255|HAMAP-Rule:MF_00432}.
CC -!- SIMILARITY: Belongs to the PetG family. {ECO:0000255|HAMAP-
CC Rule:MF_00432}.
CC -!- CAUTION: Young tissue from this organism is photosynthetic and contains
CC some thylakoids, although the photosynthetic activity does not exceed
CC the light compensation point. {ECO:0000305}.
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DR EMBL; EU189132; ABW83711.1; -; Genomic_DNA.
DR RefSeq; YP_001542547.1; NC_009963.1.
DR AlphaFoldDB; A8W3E0; -.
DR SMR; A8W3E0; -.
DR GeneID; 5729675; -.
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:0042170; C:plastid membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0042651; C:thylakoid membrane; IEA:UniProtKB-UniRule.
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 Electron transport; Membrane; Photosynthesis; Plastid; Transmembrane;
KW Transmembrane helix; Transport.
FT CHAIN 1..37
FT /note="Cytochrome b6-f complex subunit 5"
FT /id="PRO_0000355381"
FT TRANSMEM 5..25
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00432"
SQ SEQUENCE 37 AA; 4184 MW; B93EF1D1DCB983C5 CRC64;
MIEVFLFGIV LGIIPITLAG LFVTAYLQYR RGDRLDV
