ID   PSBO_TOBAC              Reviewed;         332 AA.
AC   Q40459;
DT   01-DEC-2000, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1996, sequence version 1.
DT   25-MAY-2022, entry version 80.
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   Nicotiana tabacum (Common tobacco).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   asterids; lamiids; Solanales; Solanaceae; Nicotianoideae; Nicotianeae;
OC   Nicotiana.
OX   NCBI_TaxID=4097;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RC   STRAIN=cv. Samsun NN; TISSUE=Seedling;
RX   PubMed=8223572; DOI=10.1111/j.1432-1033.1993.tb18252.x;
RA   Palomares R., Herrmann R.G., Oelmueller R.;
RT   "Post-transcriptional and post-translational regulatory steps are crucial
RT   in controlling the appearance and stability of thylakoid polypeptides
RT   during the transition of etiolated tobacco seedlings to white light.";
RL   Eur. J. Biochem. 217:345-352(1993).
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; X64349; CAA45701.1; -; mRNA.
DR   PIR; T02066; T02066.
DR   RefSeq; NP_001312991.1; NM_001326062.1.
DR   AlphaFoldDB; Q40459; -.
DR   SMR; Q40459; -.
DR   STRING; 4097.Q40459; -.
DR   PRIDE; Q40459; -.
DR   GeneID; 107820252; -.
DR   KEGG; nta:107820252; -.
DR   OMA; GERMPFL; -.
DR   Proteomes; UP000084051; Unplaced.
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..85
FT                   /note="Chloroplast"
FT                   /evidence="ECO:0000250"
FT   CHAIN           86..332
FT                   /note="Oxygen-evolving enhancer protein 1, chloroplastic"
FT                   /id="PRO_0000029562"
FT   REGION          262..282
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   332 AA;  35228 MW;  34AB2788812F0790 CRC64;
     MAASLQAAAT LMQPTKVGVA PARNNLQLRS AQSVSKAFGV EPAAARLTCS LQTELKDLAQ
     KFTDAAKVAG FALATSALVV SGANAEGVPK RLTFDEIQSK TYMEVKGTGT ANQCPTIDGG
     VASFAFKPGK YNAKKFCLEP TSFTVKAESV NKNAPPDFQK TKLMTRLTYT LDEIEGPFEV
     SSDGTVKFEE KDGIDYAAVT VQLPGGERVP FLFTIKQLVA SGKPESFSGE FLVPSYRGSS
     FLDPKGRGGS TGYDNAVALP AGGRGDEEEL QKENVKNTSS STGKITLSVT QSKPETGEVI
     GVFESIQPSD TDLGAKVPKD VKIQGIWYAQ LE