ID   PETL_CUSGR              Reviewed;          31 AA.
AC   A7M915;
DT   23-OCT-2007, integrated into UniProtKB/Swiss-Prot.
DT   02-OCT-2007, sequence version 1.
DT   03-AUG-2022, entry version 40.
DE   RecName: Full=Cytochrome b6-f complex subunit 6;
DE   AltName: Full=Cytochrome b6-f complex subunit PetL;
DE   AltName: Full=Cytochrome b6-f complex subunit VI;
GN   Name=petL;
OS   Cuscuta gronovii (Common dodder) (Epithymum gronovii).
OG   Plastid.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   asterids; lamiids; Solanales; Convolvulaceae; Cuscuteae; Cuscuta;
OC   Cuscuta subgen. Grammica; Cuscuta sect. Oxycarpae.
OX   NCBI_TaxID=35886;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA], AND ABSENCE OF RNA EDITING.
RX   PubMed=17714582; DOI=10.1186/1471-2229-7-45;
RA   Funk H.T., Berg S., Krupinska K., Maier U.-G., Krause K.;
RT   "Complete DNA sequences of the plastid genomes of two parasitic flowering
RT   plant species, Cuscuta reflexa and Cuscuta gronovii.";
RL   BMC Plant Biol. 7:45-45(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. PetL is
CC       important for photoautotrophic growth as well as for electron transfer
CC       efficiency and stability of the cytochrome b6-f complex (By
CC       similarity). {ECO:0000250}.
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 (By similarity). {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Plastid thylakoid membrane {ECO:0000305}; Single-
CC       pass membrane protein {ECO:0000305}.
CC   -!- SIMILARITY: Belongs to the PetL family. {ECO:0000305}.
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; AM711639; CAM98343.1; -; Genomic_DNA.
DR   RefSeq; YP_001430057.1; NC_009765.1.
DR   AlphaFoldDB; A7M915; -.
DR   SMR; A7M915; -.
DR   GeneID; 5536719; -.
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:0055035; C:plastid thylakoid membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0045158; F:electron transporter, transferring electrons within cytochrome b6/f complex of photosystem II activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-KW.
DR   HAMAP; MF_00433; Cytb6_f_PetL; 1.
DR   InterPro; IPR007802; Cyt_b6/f_cplx_su6.
DR   PANTHER; PTHR37266; PTHR37266; 1.
DR   Pfam; PF05115; PetL; 1.
PE   2: Evidence at transcript level;
KW   Electron transport; Membrane; Photosynthesis; Plastid; Thylakoid;
KW   Transmembrane; Transmembrane helix; Transport.
FT   CHAIN           1..31
FT                   /note="Cytochrome b6-f complex subunit 6"
FT                   /id="PRO_0000308468"
FT   TRANSMEM        4..24
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   31 AA;  3426 MW;  0AE42B8BEC85EB13 CRC64;
     MPTITSYFCL LLAALTLTLA LFIGLSKRQL I