ID   PETL_SPIOL              Reviewed;          31 AA.
AC   Q9M3L0; Q5K3T0;
DT   29-AUG-2001, integrated into UniProtKB/Swiss-Prot.
DT   02-MAY-2006, sequence version 2.
DT   25-MAY-2022, entry version 76.
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   Spinacia oleracea (Spinach).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   Caryophyllales; Chenopodiaceae; Chenopodioideae; Anserineae; Spinacia.
OX   NCBI_TaxID=3562;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=cv. Geant d'hiver, and cv. Monatol;
RX   PubMed=11292076; DOI=10.1023/a:1006478403810;
RA   Schmitz-Linneweber C., Maier R.M., Alcaraz J.-P., Cottet A., Herrmann R.G.,
RA   Mache R.;
RT   "The plastid chromosome of spinach (Spinacia oleracea): complete nucleotide
RT   sequence and gene organization.";
RL   Plant Mol. Biol. 45:307-315(2001).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA], AND RNA EDITING.
RC   TISSUE=Leaf;
RX   PubMed=15240834; DOI=10.1093/nar/gkh695;
RA   Fiebig A., Stegemann S., Bock R.;
RT   "Rapid evolution of RNA editing sites in a small non-essential plastid
RT   gene.";
RL   Nucleic Acids Res. 32:3615-3622(2004).
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=2 {ECO:0000269|PubMed:15240834};
CC   -!- SIMILARITY: Belongs to the PetL family. {ECO:0000255|HAMAP-
CC       Rule:MF_00433}.
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DR   EMBL; AJ400848; CAB88746.1; ALT_SEQ; Genomic_DNA.
DR   EMBL; AJ704434; CAG28646.1; -; Genomic_DNA.
DR   RefSeq; NP_054953.1; NC_002202.1.
DR   PDB; 6RQF; EM; 3.58 A; E/M=1-31.
DR   PDBsum; 6RQF; -.
DR   AlphaFoldDB; Q9M3L0; -.
DR   SMR; Q9M3L0; -.
DR   IntAct; Q9M3L0; 1.
DR   GeneID; 2715601; -.
DR   KEGG; soe:2715601; -.
DR   OrthoDB; 1648057at2759; -.
DR   Proteomes; UP000054095; Chloroplast.
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   PANTHER; PTHR37266; PTHR37266; 1.
DR   Pfam; PF05115; PetL; 1.
PE   1: Evidence at protein level;
KW   3D-structure; Chloroplast; Electron transport; Membrane; Photosynthesis;
KW   Plastid; Reference proteome; RNA editing; Thylakoid; Transmembrane;
KW   Transmembrane helix; Transport.
FT   CHAIN           1..31
FT                   /note="Cytochrome b6-f complex subunit 6"
FT                   /id="PRO_0000220481"
FT   TRANSMEM        4..26
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00433"
SQ   SEQUENCE   31 AA;  3450 MW;  BEE4294AF4781439 CRC64;
     MFTLTSYFGF LLAALTITSA LFIGLNKIRL I