ID   PETG_ANEMR              Reviewed;          37 AA.
AC   B0YPP7;
DT   25-NOV-2008, integrated into UniProtKB/Swiss-Prot.
DT   08-APR-2008, sequence version 1.
DT   25-MAY-2022, entry version 38.
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   Aneura mirabilis (Parasitic liverwort) (Cryptothallus mirabilis).
OG   Plastid; Non-photosynthetic plastid.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Marchantiophyta;
OC   Jungermanniopsida; Metzgeriidae; Metzgeriales; Aneuraceae; Aneura.
OX   NCBI_TaxID=280810;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=18056074; DOI=10.1093/molbev/msm267;
RA   Wickett N.J., Zhang Y., Hansen S.K., Roper J.M., Kuehl J.V., Plock S.A.,
RA   Wolf P.G., dePamphilis C.W., Boore J.L., Goffinet B.;
RT   "Functional gene losses occur with minimal size reduction in the plastid
RT   genome of the parasitic liverwort Aneura mirabilis.";
RL   Mol. Biol. Evol. 25:393-401(2008).
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: This organism being non-photosynthetic, the role of this
CC       protein is uncertain. {ECO:0000305}.
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DR   EMBL; EU043314; ABS54494.1; -; Genomic_DNA.
DR   RefSeq; YP_001687233.1; NC_010359.1.
DR   AlphaFoldDB; B0YPP7; -.
DR   SMR; B0YPP7; -.
DR   GeneID; 5952212; -.
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   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; Plastid; Transmembrane; Transmembrane helix;
KW   Transport.
FT   CHAIN           1..37
FT                   /note="Cytochrome b6-f complex subunit 5"
FT                   /id="PRO_0000355367"
FT   TRANSMEM        5..25
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00432"
SQ   SEQUENCE   37 AA;  4004 MW;  DA82690F78982E94 CRC64;
     MVEALLSGIV PGLIPITLAG SFVIAYLQYR RGDQLDL