ID   PSBL_GLOVI              Reviewed;          37 AA.
AC   Q7NMA8;
DT   02-OCT-2007, integrated into UniProtKB/Swiss-Prot.
DT   15-DEC-2003, sequence version 1.
DT   03-AUG-2022, entry version 83.
DE   RecName: Full=Photosystem II reaction center protein L;
DE            Short=PSII-L;
GN   Name=psbL; OrderedLocusNames=gsr0858;
OS   Gloeobacter violaceus (strain ATCC 29082 / PCC 7421).
OC   Bacteria; Cyanobacteria; Gloeobacteria; Gloeobacterales; Gloeobacteraceae;
OC   Gloeobacter.
OX   NCBI_TaxID=251221;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 29082 / PCC 7421;
RX   PubMed=14621292; DOI=10.1093/dnares/10.4.137;
RA   Nakamura Y., Kaneko T., Sato S., Mimuro M., Miyashita H., Tsuchiya T.,
RA   Sasamoto S., Watanabe A., Kawashima K., Kishida Y., Kiyokawa C., Kohara M.,
RA   Matsumoto M., Matsuno A., Nakazaki N., Shimpo S., Takeuchi C., Yamada M.,
RA   Tabata S.;
RT   "Complete genome structure of Gloeobacter violaceus PCC 7421, a
RT   cyanobacterium that lacks thylakoids.";
RL   DNA Res. 10:137-145(2003).
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.
CC       {ECO:0000250|UniProtKB:Q8DIN8}.
CC   -!- SUBUNIT: Cyanobacterial PSII is composed of 1 copy each of membrane
CC       proteins PsbA, PsbB, PsbC, PsbD, PsbE, PsbF, PsbH, PsbI, PsbJ, PsbK,
CC       PsbL, PsbM, PsbT, PsbX, PsbY, PsbZ, Ycf12, at least 3 peripheral
CC       proteins PsbO, PsbU, PsbV and a large number of cofactors. It forms
CC       dimeric complexes. {ECO:0000250|UniProtKB:Q8DIN8}.
CC   -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000305}; Single-pass
CC       membrane protein {ECO:0000250|UniProtKB:Q8DIN8}.
CC   -!- SIMILARITY: Belongs to the PsbL family. {ECO:0000305}.
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DR   EMBL; BA000045; BAC88799.1; -; Genomic_DNA.
DR   RefSeq; NP_923804.1; NC_005125.1.
DR   RefSeq; WP_011140860.1; NC_005125.1.
DR   AlphaFoldDB; Q7NMA8; -.
DR   SMR; Q7NMA8; -.
DR   STRING; 251221.35211421; -.
DR   EnsemblBacteria; BAC88799; BAC88799; BAC88799.
DR   KEGG; gvi:gsr0858; -.
DR   HOGENOM; CLU_214425_0_0_3; -.
DR   Proteomes; UP000000557; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProt.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0043229; C:intracellular organelle; IEA:UniProt.
DR   GO; GO:0009539; C:photosystem II reaction center; IEA:InterPro.
DR   GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-KW.
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   Cell inner membrane; Cell membrane; Membrane; Photosynthesis;
KW   Photosystem II; Reaction center; Reference proteome; Transmembrane;
KW   Transmembrane helix.
FT   CHAIN           1..37
FT                   /note="Photosystem II reaction center protein L"
FT                   /id="PRO_0000306202"
FT   TRANSMEM        16..36
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   37 AA;  4213 MW;  C7ECBF6DEF6EE20C CRC64;
     MSKDPKNPGV ELNRTSLYMG LVLVLVIILL FSNYFIN