ID   PSBJ_PROM9              Reviewed;          65 AA.
AC   Q31CN2;
DT   26-JUN-2007, integrated into UniProtKB/Swiss-Prot.
DT   06-DEC-2005, sequence version 1.
DT   25-MAY-2022, entry version 86.
DE   RecName: Full=Photosystem II reaction center protein J {ECO:0000255|HAMAP-Rule:MF_01305};
DE            Short=PSII-J {ECO:0000255|HAMAP-Rule:MF_01305};
GN   Name=psbJ {ECO:0000255|HAMAP-Rule:MF_01305};
GN   OrderedLocusNames=PMT9312_0302;
OS   Prochlorococcus marinus (strain MIT 9312).
OC   Bacteria; Cyanobacteria; Synechococcales; Prochlorococcaceae;
OC   Prochlorococcus.
OX   NCBI_TaxID=74546;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=MIT 9312;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T.,
RA   Hammon N., Israni S., Pitluck S., Thiel J., Schmutz J., Larimer F.,
RA   Land M., Kyrpides N., Lykidis A., Richardson P.;
RT   "Complete sequence of Prochlorococcus marinus str. MIT 9312.";
RL   Submitted (JUL-2005) to the EMBL/GenBank/DDBJ databases.
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.
CC       {ECO:0000255|HAMAP-Rule:MF_01305}.
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:0000255|HAMAP-Rule:MF_01305}.
CC   -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane {ECO:0000255|HAMAP-
CC       Rule:MF_01305}; Single-pass membrane protein {ECO:0000255|HAMAP-
CC       Rule:MF_01305}.
CC   -!- SIMILARITY: Belongs to the PsbJ family. {ECO:0000255|HAMAP-
CC       Rule:MF_01305}.
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DR   EMBL; CP000111; ABB49363.1; -; Genomic_DNA.
DR   RefSeq; WP_011375864.1; NC_007577.1.
DR   AlphaFoldDB; Q31CN2; -.
DR   SMR; Q31CN2; -.
DR   STRING; 74546.PMT9312_0302; -.
DR   EnsemblBacteria; ABB49363; ABB49363; PMT9312_0302.
DR   KEGG; pmi:PMT9312_0302; -.
DR   eggNOG; ENOG5030SSF; Bacteria.
DR   HOGENOM; CLU_2829784_0_0_3; -.
DR   OMA; SWERRWT; -.
DR   OrthoDB; 1939278at2; -.
DR   Proteomes; UP000002715; Chromosome.
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:0031676; C:plasma membrane-derived thylakoid membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_01305; PSII_PsbJ; 1.
DR   InterPro; IPR002682; PSII_PsbJ.
DR   InterPro; IPR037267; PSII_PsbJ_sf.
DR   Pfam; PF01788; PsbJ; 1.
DR   SUPFAM; SSF161021; SSF161021; 1.
PE   3: Inferred from homology;
KW   Membrane; Photosynthesis; Photosystem II; Reaction center; Thylakoid;
KW   Transmembrane; Transmembrane helix.
FT   CHAIN           1..65
FT                   /note="Photosystem II reaction center protein J"
FT                   /id="PRO_0000292229"
FT   TRANSMEM        35..55
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01305"
SQ   SEQUENCE   65 AA;  6946 MW;  E1F59C98AC7912DF CRC64;
     MSKLKGPDGR IPDRLPDGRP AVAWERRWTE GTLPLWLVAT AGGIAVIFVL GIFFYGSYQG
     VGAGG