ID   PSBL_WELMI              Reviewed;          38 AA.
AC   Q6YLT3; B2Y1X4; B7ZI34;
DT   21-DEC-2004, integrated into UniProtKB/Swiss-Prot.
DT   05-JUL-2004, sequence version 1.
DT   25-MAY-2022, entry version 59.
DE   RecName: Full=Photosystem II reaction center protein L {ECO:0000255|HAMAP-Rule:MF_01317};
DE            Short=PSII-L {ECO:0000255|HAMAP-Rule:MF_01317};
GN   Name=psbL {ECO:0000255|HAMAP-Rule:MF_01317};
OS   Welwitschia mirabilis (Tree tumbo) (Welwitschia bainesii).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Gnetopsida; Gnetidae; Welwitschiales; Welwitschiaceae;
OC   Welwitschia.
OX   NCBI_TaxID=3377;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=13678689; DOI=10.1016/s1055-7903(03)00131-3;
RA   Rai H.S., O'Brien H.E., Reeves P.A., Olmstead R.G., Graham S.W.;
RT   "Inference of higher-order relationships in the cycads from a large
RT   chloroplast data set.";
RL   Mol. Phylogenet. Evol. 29:350-359(2003).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=18452621; DOI=10.1186/1471-2148-8-130;
RA   McCoy S.R., Kuehl J.V., Boore J.L., Raubeson L.A.;
RT   "The complete plastid genome sequence of Welwitschia mirabilis: an
RT   unusually compact plastome with accelerated divergence rates.";
RL   BMC Evol. Biol. 8:130-130(2008).
RN   [3]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=19166950; DOI=10.1016/j.ympev.2008.12.026;
RA   Wu C.-S., Lai Y.-T., Lin C.-P., Wang Y.-N., Chaw S.-M.;
RT   "Evolution of reduced and compact chloroplast genomes (cpDNAs) in
RT   gnetophytes: Selection toward a lower-cost strategy.";
RL   Mol. Phylogenet. Evol. 52:115-124(2009).
CC   -!- FUNCTION: One of the components of the core complex of photosystem II
CC       (PSII). PSII is a light-driven water:plastoquinone oxidoreductase that
CC       uses light energy to abstract electrons from H(2)O, generating O(2) and
CC       a proton gradient subsequently used for ATP formation. It consists of a
CC       core antenna complex that captures photons, and an electron transfer
CC       chain that converts photonic excitation into a charge separation. This
CC       subunit is found at the monomer-monomer interface and is required for
CC       correct PSII assembly and/or dimerization. {ECO:0000255|HAMAP-
CC       Rule:MF_01317}.
CC   -!- SUBUNIT: PSII is composed of 1 copy each of membrane proteins PsbA,
CC       PsbB, PsbC, PsbD, PsbE, PsbF, PsbH, PsbI, PsbJ, PsbK, PsbL, PsbM, PsbT,
CC       PsbX, PsbY, PsbZ, Ycf12, at least 3 peripheral proteins of the oxygen-
CC       evolving complex and a large number of cofactors. It forms dimeric
CC       complexes. {ECO:0000255|HAMAP-Rule:MF_01317}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC       {ECO:0000255|HAMAP-Rule:MF_01317}; Single-pass membrane protein
CC       {ECO:0000255|HAMAP-Rule:MF_01317}.
CC   -!- SIMILARITY: Belongs to the PsbL family. {ECO:0000255|HAMAP-
CC       Rule:MF_01317}.
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DR   EMBL; AY116660; AAN07080.1; -; Genomic_DNA.
DR   EMBL; EU342371; ABY26804.1; -; Genomic_DNA.
DR   EMBL; AP009568; BAH11214.1; -; Genomic_DNA.
DR   RefSeq; YP_001876591.1; NC_010654.1.
DR   AlphaFoldDB; Q6YLT3; -.
DR   SMR; Q6YLT3; -.
DR   GeneID; 6276216; -.
DR   GO; GO:0009535; C:chloroplast thylakoid membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0009539; C:photosystem II reaction center; IEA:InterPro.
DR   GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_01317; PSII_PsbL; 1.
DR   InterPro; IPR003372; PSII_PsbL.
DR   InterPro; IPR037266; PSII_PsbL_sf.
DR   Pfam; PF02419; PsbL; 1.
DR   SUPFAM; SSF161017; SSF161017; 1.
PE   3: Inferred from homology;
KW   Chloroplast; Membrane; Photosynthesis; Photosystem II; Plastid;
KW   Reaction center; Thylakoid; Transmembrane; Transmembrane helix.
FT   CHAIN           1..38
FT                   /note="Photosystem II reaction center protein L"
FT                   /id="PRO_0000219781"
FT   TRANSMEM        17..37
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01317"
SQ   SEQUENCE   38 AA;  4484 MW;  55537EBD0913938D CRC64;
     MTQTNPNEQS VELNRTSLYW GLLLIFVLAV LFSNYFFN