ID   PSBO_VOLCA              Reviewed;         293 AA.
AC   Q9SBN6;
DT   01-DEC-2000, integrated into UniProtKB/Swiss-Prot.
DT   01-MAY-2000, sequence version 1.
DT   25-MAY-2022, entry version 62.
DE   RecName: Full=Oxygen-evolving enhancer protein 1, chloroplastic;
DE            Short=OEE1;
DE   Flags: Precursor;
GN   Name=PSBO;
OS   Volvox carteri (Green alga).
OC   Eukaryota; Viridiplantae; Chlorophyta; core chlorophytes; Chlorophyceae;
OC   CS clade; Chlamydomonadales; Volvocaceae; Volvox.
OX   NCBI_TaxID=3067;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RC   STRAIN=f. Nagariensis;
RX   PubMed=10654090; DOI=10.1007/s002940050511;
RA   Meissner M., Stark K., Cresnar B., Kirk D.L., Schmitt R.;
RT   "Volvox germline-specific genes that are putative targets of RegA
RT   repression encode chloroplast proteins.";
RL   Curr. Genet. 36:363-370(1999).
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; AF110780; AAD55562.1; -; mRNA.
DR   AlphaFoldDB; Q9SBN6; -.
DR   SMR; Q9SBN6; -.
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   Thylakoid; Transit peptide.
FT   TRANSIT         1..53
FT                   /note="Chloroplast"
FT                   /evidence="ECO:0000250"
FT   CHAIN           54..293
FT                   /note="Oxygen-evolving enhancer protein 1, chloroplastic"
FT                   /id="PRO_0000029563"
SQ   SEQUENCE   293 AA;  30758 MW;  645FCBD14E757E02 CRC64;
     MRAAQTVKAA GVSRAARPVR ANVVCKAQKV EFGQAAAAVV AASALVAGSA NALTYDELQG
     LTYLQVKGTG IANTCPVLEK GSTDLSELSA GTYKLENFCI EPTSFTVKEE SVFKGGETEF
     VKTKLMTRLT YTLDAMSGTL KVGSDGSAEL KEEDGIDYAA TTVQLPGGER VAFLFTIKQF
     DGKGTLDNIK GDFVVPSYRG SSFLDPKGRG GSTGYDNAVA LPARADAEEL LKENVKSTKA
     LKGSAVFSVA KVNTATGEIA GVFESIQPSD TDLGAKPPKD IKITGLWYGQ LSQ