ID   PSBN_EUGGR              Reviewed;          44 AA.
AC   P31591;
DT   01-JUL-1993, integrated into UniProtKB/Swiss-Prot.
DT   01-JUL-1993, sequence version 1.
DT   25-MAY-2022, entry version 76.
DE   RecName: Full=Putative protein PsbN {ECO:0000255|HAMAP-Rule:MF_00293};
GN   Name=psbN {ECO:0000255|HAMAP-Rule:MF_00293};
OS   Euglena gracilis.
OG   Plastid; Chloroplast.
OC   Eukaryota; Discoba; Euglenozoa; Euglenida; Spirocuta; Euglenophyceae;
OC   Euglenales; Euglenaceae; Euglena.
OX   NCBI_TaxID=3039;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Z / UTEX 753;
RX   PubMed=8346031; DOI=10.1093/nar/21.15.3537;
RA   Hallick R.B., Hong L., Drager R.G., Favreau M.R., Monfort A., Orsat B.,
RA   Spielmann A., Stutz E.;
RT   "Complete sequence of Euglena gracilis chloroplast DNA.";
RL   Nucleic Acids Res. 21:3537-3544(1993).
CC   -!- FUNCTION: May play a role in photosystem I and II biogenesis.
CC       {ECO:0000255|HAMAP-Rule:MF_00293}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC       {ECO:0000255|HAMAP-Rule:MF_00293}; Single-pass membrane protein
CC       {ECO:0000255|HAMAP-Rule:MF_00293}.
CC   -!- SIMILARITY: Belongs to the PsbN family. {ECO:0000255|HAMAP-
CC       Rule:MF_00293}.
CC   -!- CAUTION: Could be the product of a pseudogene. {ECO:0000305}.
CC   -!- CAUTION: Originally thought to be a component of PSII; based on
CC       experiments in Synechocystis, N.tabacum and barley, and its absence
CC       from PSII in T.elongatus and T.vulcanus, this is probably not true.
CC       {ECO:0000255|HAMAP-Rule:MF_00293}.
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DR   EMBL; Z11874; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR   EMBL; X70810; CAA50130.1; -; Genomic_DNA.
DR   RefSeq; NP_041943.1; NC_001603.2.
DR   AlphaFoldDB; P31591; -.
DR   SMR; P31591; -.
DR   GeneID; 807511; -.
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:0015979; P:photosynthesis; IEA:InterPro.
DR   HAMAP; MF_00293; PSII_PsbN; 1.
DR   InterPro; IPR003398; PSII_PsbN.
DR   Pfam; PF02468; PsbN; 1.
PE   5: Uncertain;
KW   Chloroplast; Membrane; Plastid; Thylakoid; Transmembrane;
KW   Transmembrane helix.
FT   CHAIN           1..44
FT                   /note="Putative protein PsbN"
FT                   /id="PRO_0000207898"
FT   TRANSMEM        3..23
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00293"
SQ   SEQUENCE   44 AA;  5167 MW;  317F39BCDC694D23 CRC64;
     FKIISFLSTI FLGFFIISTT IYSIYMGFGP MSRKLKDPFE EHEN