PETL_AMBTC
ID PETL_AMBTC Reviewed; 31 AA.
AC Q70XY8; Q5K3V0;
DT 01-MAR-2005, integrated into UniProtKB/Swiss-Prot.
DT 02-MAY-2006, sequence version 2.
DT 25-MAY-2022, entry version 67.
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 Amborella trichopoda.
OG Plastid; Chloroplast.
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; Amborellales; Amborellaceae; Amborella.
OX NCBI_TaxID=13333;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX PubMed=12832641; DOI=10.1093/molbev/msg159;
RA Goremykin V.V., Hirsch-Ernst K.I., Wolfl S., Hellwig F.H.;
RT "Analysis of the Amborella trichopoda chloroplast genome sequence suggests
RT that Amborella is not a basal angiosperm.";
RL Mol. Biol. Evol. 20:1499-1505(2003).
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}, 8
CC {ECO:0000269|PubMed:15240834}, 15 {ECO:0000269|PubMed:15240834};
CC -!- SIMILARITY: Belongs to the PetL family. {ECO:0000255|HAMAP-
CC Rule:MF_00433}.
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DR EMBL; AJ506156; CAD45124.1; ALT_SEQ; Genomic_DNA.
DR EMBL; AJ704414; CAG28626.1; -; Genomic_DNA.
DR RefSeq; NP_904117.1; NC_005086.1.
DR AlphaFoldDB; Q70XY8; -.
DR SMR; Q70XY8; -.
DR GeneID; 2597959; -.
DR KEGG; atr:2597959; -.
DR Proteomes; UP000017836; 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 2: Evidence at transcript level;
KW Chloroplast; Electron transport; Membrane; Photosynthesis; Plastid;
KW 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_0000220435"
FT TRANSMEM 4..26
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00433"
SQ SEQUENCE 31 AA; 3382 MW; BEEC8B4FA427B493 CRC64;
MLTITSYFGF LLAALTITSA LLIGLNKIRL I
