ID   PSBN_HORVU              Reviewed;          43 AA.
AC   A1E9L8;
DT   10-FEB-2009, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 1.
DT   25-MAY-2022, entry version 45.
DE   RecName: Full=Protein PsbN {ECO:0000255|HAMAP-Rule:MF_00293};
GN   Name=psbN {ECO:0000255|HAMAP-Rule:MF_00293};
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 [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   [2]
RP   FUNCTION, IDENTIFICATION BY MASS SPECTROMETRY, 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: May play a role in photosystem I and II biogenesis.
CC       {ECO:0000255|HAMAP-Rule:MF_00293, ECO:0000305|PubMed:19137553}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast membrane {ECO:0000305}.
CC       Plastid, etioplast membrane {ECO:0000305|PubMed:19137553}; Single-pass
CC       membrane protein {ECO:0000255|HAMAP-Rule:MF_00293,
CC       ECO:0000305|PubMed:19137553}. Note=Detected only in etioplasts and not
CC       in chloroplasts from green leaves; PSII is only assembled in green
CC       leaves, suggesting this protein is not a component of PSII.
CC       {ECO:0000269|PubMed:19137553}.
CC   -!- SIMILARITY: Belongs to the PsbN family. {ECO:0000255|HAMAP-
CC       Rule:MF_00293}.
CC   -!- CAUTION: Originally thought to be a component of PSII; based on
CC       experiments in this organism, Synechocystis and N.tabacum, and its
CC       absence from PSII in T.elongatus and T.vulcanus, this is probably not
CC       true. {ECO:0000255|HAMAP-Rule:MF_00293, ECO:0000305|PubMed:19137553}.
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DR   EMBL; EF115541; ABK79439.1; -; Genomic_DNA.
DR   RefSeq; YP_874680.1; NC_008590.1.
DR   AlphaFoldDB; A1E9L8; -.
DR   SMR; A1E9L8; -.
DR   GeneID; 4525077; -.
DR   GO; GO:0031969; C:chloroplast membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0009535; C:chloroplast thylakoid membrane; IEA:UniProtKB-UniRule.
DR   GO; GO:0034426; C:etioplast membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0015979; P:photosynthesis; IEA:InterPro.
DR   HAMAP; MF_00293; PSII_PsbN; 1.
DR   InterPro; IPR003398; PSII_PsbN.
DR   PANTHER; PTHR35326; PTHR35326; 1.
DR   Pfam; PF02468; PsbN; 1.
PE   1: Evidence at protein level;
KW   Chloroplast; Membrane; Plastid; Transmembrane; Transmembrane helix.
FT   CHAIN           1..43
FT                   /note="Protein PsbN"
FT                   /id="PRO_0000362195"
FT   TRANSMEM        5..27
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00293"
SQ   SEQUENCE   43 AA;  4662 MW;  06173171041707AD CRC64;
     METATLVAIS ISGLLVSFTG YALYTAFGQP SQQLRDPFEE HGD