ID   PSBN_EMIHU              Reviewed;          43 AA.
AC   Q4G3C3;
DT   18-APR-2006, integrated into UniProtKB/Swiss-Prot.
DT   30-AUG-2005, sequence version 1.
DT   03-AUG-2022, entry version 46.
DE   RecName: Full=Protein PsbN {ECO:0000255|HAMAP-Rule:MF_00293};
GN   Name=psbN {ECO:0000255|HAMAP-Rule:MF_00293};
OS   Emiliania huxleyi (Coccolithophore) (Pontosphaera huxleyi).
OG   Plastid; Chloroplast.
OC   Eukaryota; Haptista; Haptophyta; Prymnesiophyceae; Isochrysidales;
OC   Noelaerhabdaceae; Emiliania.
OX   NCBI_TaxID=2903;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CCMP373 / CSIRO-CS-57 / BT6;
RX   PubMed=16303746; DOI=10.1093/dnares/12.2.151;
RA   Sanchez-Puerta M.V., Bachvaroff T.R., Delwiche C.F.;
RT   "The complete plastid genome sequence of the haptophyte Emiliania huxleyi:
RT   a comparison to other plastid genomes.";
RL   DNA Res. 12:151-156(2005).
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: 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; AY741371; AAX13843.1; -; Genomic_DNA.
DR   RefSeq; YP_277344.1; NC_007288.1.
DR   AlphaFoldDB; Q4G3C3; -.
DR   GeneID; 3562522; -.
DR   Proteomes; UP000013827; Unassembled WGS sequence.
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   PANTHER; PTHR35326; PTHR35326; 1.
DR   Pfam; PF02468; PsbN; 1.
PE   3: Inferred from homology;
KW   Chloroplast; Membrane; Plastid; Reference proteome; Thylakoid;
KW   Transmembrane; Transmembrane helix.
FT   CHAIN           1..43
FT                   /note="Protein PsbN"
FT                   /id="PRO_0000232770"
FT   TRANSMEM        4..24
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00293"
SQ   SEQUENCE   43 AA;  4702 MW;  DE93702B9048D586 CRC64;
     METATILSIF ILGLLLGVTG YSVYTAFGPV SKGLRDPFEE HEE