ID   PETM_TRICV              Reviewed;          42 AA.
AC   P49531;
DT   01-FEB-1996, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1996, sequence version 1.
DT   25-MAY-2022, entry version 73.
DE   RecName: Full=Cytochrome b6-f complex subunit 7 {ECO:0000255|HAMAP-Rule:MF_00396};
DE   AltName: Full=Cytochrome b6-f complex subunit PetM {ECO:0000255|HAMAP-Rule:MF_00396};
DE   AltName: Full=Cytochrome b6-f complex subunit VII {ECO:0000255|HAMAP-Rule:MF_00396};
GN   Name=petM {ECO:0000255|HAMAP-Rule:MF_00396}; Synonyms=ycf31;
OS   Trieres chinensis (Marine centric diatom) (Odontella sinensis).
OG   Plastid; Chloroplast.
OC   Eukaryota; Sar; Stramenopiles; Ochrophyta; Bacillariophyta; Mediophyceae;
OC   Biddulphiophycidae; Eupodiscales; Parodontellaceae; Trieres.
OX   NCBI_TaxID=1514140;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RA   Kowallik K.V., Stoebe B., Schaffran I., Kroth-Pancic P., Freier U.;
RT   "The chloroplast genome of a chlorophyll a+c-containing alga, Odontella
RT   sinensis.";
RL   Plant Mol. Biol. Rep. 13:336-342(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.
CC       {ECO:0000255|HAMAP-Rule:MF_00396}.
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_00396}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC       {ECO:0000255|HAMAP-Rule:MF_00396}; Single-pass membrane protein
CC       {ECO:0000255|HAMAP-Rule:MF_00396}.
CC   -!- SIMILARITY: Belongs to the PetM family. {ECO:0000255|HAMAP-
CC       Rule:MF_00396}.
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DR   EMBL; Z67753; CAA91700.1; -; Genomic_DNA.
DR   PIR; S78327; S78327.
DR   AlphaFoldDB; P49531; -.
DR   SMR; P49531; -.
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:0009055; F:electron transfer activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-KW.
DR   HAMAP; MF_00396; Cytb6_f_PetM; 1.
DR   InterPro; IPR012595; PetM_cyt_b6/f_cplx_su7.
DR   Pfam; PF08041; PetM; 1.
PE   3: Inferred from homology;
KW   Chloroplast; Electron transport; Membrane; Photosynthesis; Plastid;
KW   Thylakoid; Transmembrane; Transmembrane helix; Transport.
FT   CHAIN           1..42
FT                   /note="Cytochrome b6-f complex subunit 7"
FT                   /id="PRO_0000218011"
FT   TRANSMEM        15..35
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00396"
SQ   SEQUENCE   42 AA;  4504 MW;  7024148E233879F5 CRC64;
     MALVLKIFPY ANAEIVTAAV TCIFMVLFGL SLGFALLKVQ GE