ID   PSBO_CHLRE              Reviewed;         291 AA.
AC   P12853;
DT   01-OCT-1989, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-1989, sequence version 1.
DT   03-AUG-2022, entry version 86.
DE   RecName: Full=Oxygen-evolving enhancer protein 1, chloroplastic;
DE            Short=OEE1;
DE   Flags: Precursor;
GN   Name=PSBO;
OS   Chlamydomonas reinhardtii (Chlamydomonas smithii).
OC   Eukaryota; Viridiplantae; Chlorophyta; core chlorophytes; Chlorophyceae;
OC   CS clade; Chlamydomonadales; Chlamydomonadaceae; Chlamydomonas.
OX   NCBI_TaxID=3055;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RC   STRAIN=137c / CC-125;
RA   Mayfield S.P., Schirmer-Rahire G., Frank H., Zuber H., Rochaix J.-D.;
RT   "Analysis of the genes of the OEE1 and OEE3 proteins of the photosystem II
RT   complex of Chlamydomonas reinhardtii.";
RL   Plant Mol. Biol. 12:683-693(1989).
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; X13826; CAA32053.1; -; mRNA.
DR   PIR; S05508; S05508.
DR   PDB; 6KAC; EM; 2.70 A; O/o=1-291.
DR   PDB; 6KAD; EM; 3.40 A; O/o=1-291.
DR   PDBsum; 6KAC; -.
DR   PDBsum; 6KAD; -.
DR   AlphaFoldDB; P12853; -.
DR   SMR; P12853; -.
DR   STRING; 3055.EDP02283; -.
DR   PRIDE; P12853; -.
DR   ProMEX; P12853; -.
DR   eggNOG; ENOG502QRXA; Eukaryota.
DR   BioCyc; MetaCyc:CHLREDRAFT_130316-MON; -.
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   1: Evidence at protein level;
KW   3D-structure; Chloroplast; Manganese; Membrane; Photosynthesis;
KW   Photosystem II; Plastid; Thylakoid; Transit peptide.
FT   TRANSIT         1..52
FT                   /note="Chloroplast"
FT   CHAIN           53..291
FT                   /note="Oxygen-evolving enhancer protein 1, chloroplastic"
FT                   /id="PRO_0000029555"
FT   HELIX           54..58
FT                   /evidence="ECO:0007829|PDB:6KAC"
FT   HELIX           62..65
FT                   /evidence="ECO:0007829|PDB:6KAC"
FT   HELIX           70..72
FT                   /evidence="ECO:0007829|PDB:6KAC"
FT   STRAND          79..81
FT                   /evidence="ECO:0007829|PDB:6KAC"
FT   STRAND          90..108
FT                   /evidence="ECO:0007829|PDB:6KAC"
FT   STRAND          111..114
FT                   /evidence="ECO:0007829|PDB:6KAC"
FT   STRAND          118..121
FT                   /evidence="ECO:0007829|PDB:6KAC"
FT   STRAND          132..141
FT                   /evidence="ECO:0007829|PDB:6KAC"
FT   STRAND          143..155
FT                   /evidence="ECO:0007829|PDB:6KAC"
FT   STRAND          159..163
FT                   /evidence="ECO:0007829|PDB:6KAC"
FT   STRAND          169..173
FT                   /evidence="ECO:0007829|PDB:6KAC"
FT   STRAND          180..184
FT                   /evidence="ECO:0007829|PDB:6KAC"
FT   STRAND          190..194
FT                   /evidence="ECO:0007829|PDB:6KAC"
FT   STRAND          209..213
FT                   /evidence="ECO:0007829|PDB:6KAC"
FT   STRAND          220..226
FT                   /evidence="ECO:0007829|PDB:6KAC"
FT   TURN            227..233
FT                   /evidence="ECO:0007829|PDB:6KAC"
FT   STRAND          240..252
FT                   /evidence="ECO:0007829|PDB:6KAC"
FT   TURN            253..256
FT                   /evidence="ECO:0007829|PDB:6KAC"
FT   STRAND          257..267
FT                   /evidence="ECO:0007829|PDB:6KAC"
FT   TURN            271..274
FT                   /evidence="ECO:0007829|PDB:6KAC"
FT   STRAND          279..290
FT                   /evidence="ECO:0007829|PDB:6KAC"
SQ   SEQUENCE   291 AA;  30523 MW;  5DF4DFAEB1324267 CRC64;
     MALRAAQSAK AGVRAARPNR ATAVVCKAQK VGQAAAAAAL ATAMVAGSAN ALTFDEIQGL
     TYLQVKGSGI ANTCPVLESG TTNLKELKAG SYKLENFCIE PTSFTVKEES QFKGGETEFV
     KTKLMTRLTY TLDAMSGSFK VGSDGSAELK EDDGIDYAAT TVQLPGGERV AFLFTIKQFD
     GKGTLDGIKG DFLVPSYRGS SFLDPKGRGG STGYDNAVAL PARADAEELL KENVKITKAL
     KGSAVFSVAK VDPVTGEIAG VFESIQPSDT DLGAKPPKDI KVTGLWYAQL K