ID   PSBP_CHLRE              Reviewed;         245 AA.
AC   P11471;
DT   01-OCT-1989, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-1989, sequence version 1.
DT   03-AUG-2022, entry version 105.
DE   RecName: Full=Oxygen-evolving enhancer protein 2, chloroplastic;
DE            Short=OEE2;
DE   Flags: Precursor;
GN   Name=PSBP;
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].
RX   PubMed=3468511; DOI=10.1073/pnas.84.3.749;
RA   Mayfield S.P., Rahire M., Frank G., Zuber H., Rochaix J.-D.;
RT   "Expression of the nuclear gene encoding oxygen-evolving enhancer protein 2
RT   is required for high levels of photosynthetic oxygen evolution in
RT   Chlamydomonas reinhardtii.";
RL   Proc. Natl. Acad. Sci. U.S.A. 84:749-753(1987).
CC   -!- FUNCTION: May be involved in the regulation of photosystem II. Required
CC       for high levels of photosynthesis oxygen evolution.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane.
CC       Note=Associated with the photosystem II complex.
CC   -!- MISCELLANEOUS: OEE2 is not necessary for the accumulation of the core
CC       PSII particle or for the accumulation of either OEE1 or OEE3.
CC   -!- SIMILARITY: Belongs to the psbP family. {ECO:0000305}.
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DR   EMBL; M15187; AAA33088.1; -; mRNA.
DR   PIR; S00413; S00413.
DR   RefSeq; XP_001694126.1; XM_001694074.1.
DR   PDB; 6KAC; EM; 2.70 A; P/p=1-245.
DR   PDBsum; 6KAC; -.
DR   AlphaFoldDB; P11471; -.
DR   SMR; P11471; -.
DR   STRING; 3055.EDP03062; -.
DR   PRIDE; P11471; -.
DR   ProMEX; P11471; -.
DR   EnsemblPlants; PNW76019; PNW76019; CHLRE_12g550850v5.
DR   GeneID; 5719659; -.
DR   Gramene; PNW76019; PNW76019; CHLRE_12g550850v5.
DR   KEGG; cre:CHLRE_12g550850v5; -.
DR   eggNOG; ENOG502QUMW; Eukaryota.
DR   OMA; WFKGQER; -.
DR   GO; GO:0009535; C:chloroplast thylakoid membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0019898; C:extrinsic component of membrane; IEA:InterPro.
DR   GO; GO:0009654; C:photosystem II oxygen evolving complex; IEA:InterPro.
DR   GO; GO:0005509; F:calcium ion binding; IEA:InterPro.
DR   GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-KW.
DR   InterPro; IPR016123; Mog1/PsbP_a/b/a-sand.
DR   InterPro; IPR002683; PsbP_C.
DR   Pfam; PF01789; PsbP; 1.
DR   SUPFAM; SSF55724; SSF55724; 1.
PE   1: Evidence at protein level;
KW   3D-structure; Chloroplast; Membrane; Photosynthesis; Photosystem II;
KW   Plastid; Thylakoid; Transit peptide.
FT   TRANSIT         1..57
FT                   /note="Chloroplast"
FT   CHAIN           58..245
FT                   /note="Oxygen-evolving enhancer protein 2, chloroplastic"
FT                   /id="PRO_0000029574"
FT   STRAND          73..79
FT                   /evidence="ECO:0007829|PDB:6KAC"
FT   STRAND          81..88
FT                   /evidence="ECO:0007829|PDB:6KAC"
FT   STRAND          91..93
FT                   /evidence="ECO:0007829|PDB:6KAC"
FT   STRAND          106..110
FT                   /evidence="ECO:0007829|PDB:6KAC"
FT   STRAND          114..122
FT                   /evidence="ECO:0007829|PDB:6KAC"
FT   HELIX           128..131
FT                   /evidence="ECO:0007829|PDB:6KAC"
FT   HELIX           134..138
FT                   /evidence="ECO:0007829|PDB:6KAC"
FT   HELIX           142..145
FT                   /evidence="ECO:0007829|PDB:6KAC"
FT   STRAND          157..160
FT                   /evidence="ECO:0007829|PDB:6KAC"
FT   STRAND          165..174
FT                   /evidence="ECO:0007829|PDB:6KAC"
FT   STRAND          185..195
FT                   /evidence="ECO:0007829|PDB:6KAC"
FT   HELIX           197..199
FT                   /evidence="ECO:0007829|PDB:6KAC"
FT   STRAND          200..209
FT                   /evidence="ECO:0007829|PDB:6KAC"
FT   STRAND          213..223
FT                   /evidence="ECO:0007829|PDB:6KAC"
FT   HELIX           224..227
FT                   /evidence="ECO:0007829|PDB:6KAC"
FT   TURN            228..230
FT                   /evidence="ECO:0007829|PDB:6KAC"
FT   HELIX           231..240
FT                   /evidence="ECO:0007829|PDB:6KAC"
SQ   SEQUENCE   245 AA;  25899 MW;  06E3FC6821D389F6 CRC64;
     MATALCNKAF AAAPVARPAS RRSAVVVRAS GSDVSRRAAL AGFAGAAALV SSSPANAAYG
     DSANVFGKVT NKSGFVPYAG DGFALLLPAK WNPSKENDFP GVILRYEDNF DAVNNLVVIA
     QDTDKKAIAD FGSQDKFLES VSYLLGKQAY SGETQSEGGF APNRVSAASL LDVSTTTDKK
     GKTYYKYELL VRSADGDEGG RHQLIGATVG SDNKLYIIKI QIGDKRWFKG AKKEAMGAFD
     SFTVV