ID   PSBJ_TRIV2              Reviewed;          40 AA.
AC   Q3MC12;
DT   26-JUN-2007, integrated into UniProtKB/Swiss-Prot.
DT   26-JUN-2007, sequence version 2.
DT   25-MAY-2022, entry version 79.
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}; OrderedLocusNames=Ava_1852;
OS   Trichormus variabilis (strain ATCC 29413 / PCC 7937) (Anabaena variabilis).
OC   Bacteria; Cyanobacteria; Nostocales; Nostocaceae; Trichormus.
OX   NCBI_TaxID=240292;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 29413 / PCC 7937;
RX   PubMed=25197444; DOI=10.4056/sigs.3899418;
RA   Thiel T., Pratte B.S., Zhong J., Goodwin L., Copeland A., Lucas S., Han C.,
RA   Pitluck S., Land M.L., Kyrpides N.C., Woyke T.;
RT   "Complete genome sequence of Anabaena variabilis ATCC 29413.";
RL   Stand. Genomic Sci. 9:562-573(2014).
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}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=ABA21474.1; Type=Erroneous initiation; Note=Extended N-terminus.; Evidence={ECO:0000305};
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DR   EMBL; CP000117; ABA21474.1; ALT_INIT; Genomic_DNA.
DR   AlphaFoldDB; Q3MC12; -.
DR   SMR; Q3MC12; -.
DR   STRING; 240292.Ava_1852; -.
DR   EnsemblBacteria; ABA21474; ABA21474; Ava_1852.
DR   KEGG; ava:Ava_1852; -.
DR   eggNOG; ENOG5033ABP; Bacteria.
DR   HOGENOM; CLU_215151_0_0_3; -.
DR   Proteomes; UP000002533; 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..40
FT                   /note="Photosystem II reaction center protein J"
FT                   /id="PRO_0000292223"
FT   TRANSMEM        8..28
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01305"
SQ   SEQUENCE   40 AA;  3973 MW;  2F6D7354C6EA6303 CRC64;
     MSAGSGRIPL WVVATIAGLG VITVVGIFFY GAYAGLGSSI