ID   PSBO_WHEAT              Reviewed;         325 AA.
AC   P27665;
DT   01-AUG-1992, integrated into UniProtKB/Swiss-Prot.
DT   01-AUG-1992, sequence version 1.
DT   25-MAY-2022, entry version 78.
DE   RecName: Full=Oxygen-evolving enhancer protein 1, chloroplastic;
DE            Short=OEE1;
DE   AltName: Full=33 kDa subunit of oxygen evolving system of photosystem II;
DE   AltName: Full=33 kDa thylakoid membrane protein;
DE   AltName: Full=OEC 33 kDa subunit;
DE   Flags: Precursor;
GN   Name=PSBO;
OS   Triticum aestivum (Wheat).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; Liliopsida; Poales; Poaceae; BOP clade;
OC   Pooideae; Triticodae; Triticeae; Triticinae; Triticum.
OX   NCBI_TaxID=4565;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RC   STRAIN=cv. Avalon; TISSUE=Leaf;
RX   PubMed=1863762; DOI=10.1007/bf00016082;
RA   Meadows J.W., Hulford A., Raines C.A., Robinson C.;
RT   "Nucleotide sequence of a cDNA clone encoding the precursor of the 33 kDa
RT   protein of the oxygen-evolving complex from wheat.";
RL   Plant Mol. Biol. 16:1085-1087(1991).
CC   -!- FUNCTION: Stabilizes the manganese cluster which is the primary site of
CC       water splitting. {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane.
CC       Note=Associated with the photosystem II complex.
CC   -!- SIMILARITY: Belongs to the PsbO family. {ECO:0000305}.
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DR   EMBL; X57408; CAA40670.1; -; mRNA.
DR   AlphaFoldDB; P27665; -.
DR   SMR; P27665; -.
DR   STRING; 4565.Traes_2BL_4B8B77E73.1; -.
DR   PRIDE; P27665; -.
DR   eggNOG; ENOG502QRXA; Eukaryota.
DR   Proteomes; UP000019116; Unplaced.
DR   ExpressionAtlas; P27665; baseline and differential.
DR   GO; GO:0009535; C:chloroplast thylakoid membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0009654; C:photosystem II oxygen evolving complex; IEA:InterPro.
DR   GO; GO:0010242; F:oxygen evolving activity; IEA:InterPro.
DR   GO; GO:0010207; P:photosystem II assembly; IEA:InterPro.
DR   GO; GO:0042549; P:photosystem II stabilization; IEA:InterPro.
DR   InterPro; IPR011250; OMP/PagP_b-brl.
DR   InterPro; IPR002628; PSII_MSP.
DR   PANTHER; PTHR34058; PTHR34058; 1.
DR   Pfam; PF01716; MSP; 1.
DR   SUPFAM; SSF56925; SSF56925; 1.
PE   2: Evidence at transcript level;
KW   Chloroplast; Manganese; Membrane; Photosynthesis; Photosystem II; Plastid;
KW   Reference proteome; Thylakoid; Transit peptide.
FT   TRANSIT         1..79
FT                   /note="Chloroplast"
FT                   /evidence="ECO:0000250"
FT   CHAIN           80..325
FT                   /note="Oxygen-evolving enhancer protein 1, chloroplastic"
FT                   /id="PRO_0000029564"
FT   REGION          236..260
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   325 AA;  34740 MW;  F43A0D222EF859B2 CRC64;
     MAASLQAAAT VMPAKIGGRA SSARPSSHVA RAFGVDAGAR ITCSLQSDIR EVASKCADAA
     KMAGFALATS ALLVSGATAE GAPKRLTFDE IQSKTYMEVK GTGTANQCPT IDGGVDSFPF
     KAGKYEMKKF CLEPTSFTVK AEGIQKNEPP RFQKTKLMTR LTYTLDEMEG PLEVRRRRTL
     KFEEKDGIDY AAVTVQLPGG ERVAFLFTVK QLVATGKPES FRPFLVPSYR GSSFLDPKGR
     GGSTGYDNAG ALPRGGRGDE EELAKENVKN ASSSTGNITL SVTKSKPETG EVIGVFESVQ
     PSDTDLEAPK DVKIQGVWYA QLESN