ID   PETL_PINTH              Reviewed;          33 AA.
AC   P69400; P52805;
DT   01-MAR-2005, integrated into UniProtKB/Swiss-Prot.
DT   02-MAY-2006, sequence version 2.
DT   25-MAY-2022, entry version 58.
DE   RecName: Full=Cytochrome b6-f complex subunit 6 {ECO:0000255|HAMAP-Rule:MF_00433};
DE   AltName: Full=Cytochrome b6-f complex subunit PetL {ECO:0000255|HAMAP-Rule:MF_00433};
DE   AltName: Full=Cytochrome b6-f complex subunit VI {ECO:0000255|HAMAP-Rule:MF_00433};
GN   Name=petL {ECO:0000255|HAMAP-Rule:MF_00433};
OS   Pinus thunbergii (Japanese black pine) (Pinus thunbergiana).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Pinopsida; Pinidae; Conifers I; Pinales; Pinaceae; Pinus;
OC   Pinus subgen. Pinus.
OX   NCBI_TaxID=3350;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=7937893; DOI=10.1073/pnas.91.21.9794;
RA   Wakasugi T., Tsudzuki J., Ito S., Nakashima K., Tsudzuki T., Sugiura M.;
RT   "Loss of all ndh genes as determined by sequencing the entire chloroplast
RT   genome of the black pine Pinus thunbergii.";
RL   Proc. Natl. Acad. Sci. U.S.A. 91:9794-9798(1994).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [MRNA], AND RNA EDITING.
RX   PubMed=8710946; DOI=10.1073/pnas.93.16.8766;
RA   Wakasugi T., Hirose T., Horihata M., Tsudzuki T., Koessel H., Sugiura M.;
RT   "Creation of a novel protein-coding region at the RNA level in black pine
RT   chloroplasts: the pattern of RNA editing in the gymnosperm chloroplast is
RT   different from that in angiosperms.";
RL   Proc. Natl. Acad. Sci. U.S.A. 93:8766-8770(1996).
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.
CC       {ECO:0000255|HAMAP-Rule:MF_00433}.
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_00433}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC       {ECO:0000255|HAMAP-Rule:MF_00433}; Single-pass membrane protein
CC       {ECO:0000255|HAMAP-Rule:MF_00433}.
CC   -!- RNA EDITING: Modified_positions=1 {ECO:0000269|PubMed:8710946}, 27
CC       {ECO:0000269|PubMed:8710946}, 34 {ECO:0000269|PubMed:8710946}; Note=The
CC       initiator methionine is created by RNA editing. The stop codon at
CC       position 34 is created by RNA editing.;
CC   -!- SIMILARITY: Belongs to the PetL family. {ECO:0000255|HAMAP-
CC       Rule:MF_00433}.
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DR   EMBL; D17510; BAA04348.1; ALT_SEQ; Genomic_DNA.
DR   PIR; T07470; T07470.
DR   RefSeq; NP_042391.2; NC_001631.1.
DR   AlphaFoldDB; P69400; -.
DR   SMR; P69400; -.
DR   GeneID; 1457650; -.
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:0015979; P:photosynthesis; IEA:UniProtKB-KW.
DR   HAMAP; MF_00433; Cytb6_f_PetL; 1.
DR   InterPro; IPR007802; Cyt_b6/f_cplx_su6.
DR   Pfam; PF05115; PetL; 1.
PE   2: Evidence at transcript level;
KW   Chloroplast; Electron transport; Membrane; Photosynthesis; Plastid;
KW   RNA editing; Thylakoid; Transmembrane; Transmembrane helix; Transport.
FT   CHAIN           1..33
FT                   /note="Cytochrome b6-f complex subunit 6"
FT                   /id="PRO_0000220469"
FT   TRANSMEM        4..24
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00433"
SQ   SEQUENCE   33 AA;  3718 MW;  85D28F4CFA9000F6 CRC64;
     MPTITIISYF GFLLASIIFT LVLFISLSKI QLI