ID   PSBJ_HORVU              Reviewed;          40 AA.
AC   P20175; A1E9K4; Q6W6R0;
DT   01-FEB-1991, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1991, sequence version 1.
DT   25-MAY-2022, entry version 87.
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};
OS   Hordeum vulgare (Barley).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; Liliopsida; Poales; Poaceae; BOP clade;
OC   Pooideae; Triticodae; Triticeae; Hordeinae; Hordeum.
OX   NCBI_TaxID=4513;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=cv. Sabarlis;
RX   PubMed=2654886; DOI=10.1093/nar/17.7.2858;
RA   Chakhmakhcheva O.G., Andreeva A.V., Buryakova A.A., Reverdatto S.V.,
RA   Efimov V.A.;
RT   "Nucleotide sequence of the barley chloroplast psbE, psbF genes and
RT   flanking regions.";
RL   Nucleic Acids Res. 17:2858-2858(1989).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=cv. Sabarlis;
RX   PubMed=1804121;
RA   Efimov V.A., Andreeva A.V., Reverdatto S.V., Chakhmakhcheva O.G.;
RT   "Photosystem II of rye. Nucleotide sequence of the psbB, psbC, psbE, psbF,
RT   psbH genes of rye and chloroplast DNA regions adjacent to them.";
RL   Bioorg. Khim. 17:1369-1385(1991).
RN   [3]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RA   Wei Y.-M., Yan Z.-H., Wu W., Zhang Z.-Q., Zheng Y.-L.;
RT   "Chloroplast psbL and psbJ genes of Chinese Hordeum species.";
RL   Submitted (MAY-2003) to the EMBL/GenBank/DDBJ databases.
RN   [4]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=cv. Morex;
RX   PubMed=17534593; DOI=10.1007/s00122-007-0567-4;
RA   Saski C., Lee S.-B., Fjellheim S., Guda C., Jansen R.K., Luo H.,
RA   Tomkins J., Rognli O.A., Daniell H., Clarke J.L.;
RT   "Complete chloroplast genome sequences of Hordeum vulgare, Sorghum bicolor
RT   and Agrostis stolonifera, and comparative analyses with other grass
RT   genomes.";
RL   Theor. Appl. Genet. 115:571-590(2007).
RN   [5]
RP   IDENTIFICATION BY MASS SPECTROMETRY, SUBUNIT, AND SUBCELLULAR LOCATION.
RC   STRAIN=cv. Steffi;
RX   PubMed=19137553; DOI=10.1002/pmic.200800337;
RA   Ploescher M., Granvogl B., Zoryan M., Reisinger V., Eichacker L.A.;
RT   "Mass spectrometric characterization of membrane integral low molecular
RT   weight proteins from photosystem II in barley etioplasts.";
RL   Proteomics 9:625-635(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.
CC       {ECO:0000255|HAMAP-Rule:MF_01305}.
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 (By similarity). Detected in both etioplasts and green
CC       leaves; PSII is only assembled in green leaves (PubMed:19137553).
CC       {ECO:0000255|HAMAP-Rule:MF_01305, ECO:0000269|PubMed:19137553}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC       {ECO:0000255|HAMAP-Rule:MF_01305, ECO:0000305|PubMed:19137553}; Single-
CC       pass membrane protein {ECO:0000255|HAMAP-Rule:MF_01305,
CC       ECO:0000305|PubMed:19137553}.
CC   -!- SIMILARITY: Belongs to the PsbJ family. {ECO:0000255|HAMAP-
CC       Rule:MF_01305}.
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DR   EMBL; X14108; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR   EMBL; AY309024; AAP70320.1; -; Genomic_DNA.
DR   EMBL; EF115541; ABK79426.1; -; Genomic_DNA.
DR   PIR; S04065; S04065.
DR   RefSeq; YP_874666.1; NC_008590.1.
DR   AlphaFoldDB; P20175; -.
DR   SMR; P20175; -.
DR   GeneID; 4525052; -.
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_01305; PSII_PsbJ; 1.
DR   InterPro; IPR002682; PSII_PsbJ.
DR   InterPro; IPR037267; PSII_PsbJ_sf.
DR   PANTHER; PTHR34812; PTHR34812; 1.
DR   Pfam; PF01788; PsbJ; 1.
DR   SUPFAM; SSF161021; SSF161021; 1.
PE   1: Evidence at protein level;
KW   Chloroplast; Membrane; Photosynthesis; Photosystem II; Plastid;
KW   Reaction center; Thylakoid; Transmembrane; Transmembrane helix.
FT   CHAIN           1..40
FT                   /note="Photosystem II reaction center protein J"
FT                   /id="PRO_0000216595"
FT   TRANSMEM        8..28
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01305"
SQ   SEQUENCE   40 AA;  4087 MW;  BA8920BE1B030E94 CRC64;
     MADTTGRIPL WLIGTVAGIP VIGLVGVFFY GSYSGLGSSL