ID   PSBO_CROS5              Reviewed;         275 AA.
AC   Q9R6W6; B1WSD4;
DT   01-DEC-2000, integrated into UniProtKB/Swiss-Prot.
DT   01-DEC-2000, sequence version 2.
DT   25-MAY-2022, entry version 81.
DE   RecName: Full=Photosystem II manganese-stabilizing polypeptide;
DE            Short=MSP;
DE   Flags: Precursor;
GN   Name=psbO; OrderedLocusNames=cce_2572;
OS   Crocosphaera subtropica (strain ATCC 51142 / BH68) (Cyanothece sp. (strain
OS   ATCC 51142)).
OC   Bacteria; Cyanobacteria; Oscillatoriophycideae; Chroococcales;
OC   Aphanothecaceae; Crocosphaera; Crocosphaera subtropica.
OX   NCBI_TaxID=43989;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RA   Tucker D.L., Hirsh K.R., Sherman L.A.;
RT   "Regulation of PSII extrinsic proteins and O2-evolution in the unicellular,
RT   diazatrophic cyanobacterium Cyanothece sp. ATCC 51142.";
RL   Submitted (NOV-1999) to the EMBL/GenBank/DDBJ databases.
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 51142 / BH68;
RX   PubMed=18812508; DOI=10.1073/pnas.0805418105;
RA   Welsh E.A., Liberton M., Stoeckel J., Loh T., Elvitigala T., Wang C.,
RA   Wollam A., Fulton R.S., Clifton S.W., Jacobs J.M., Aurora R., Ghosh B.K.,
RA   Sherman L.A., Smith R.D., Wilson R.K., Pakrasi H.B.;
RT   "The genome of Cyanothece 51142, a unicellular diazotrophic cyanobacterium
RT   important in the marine nitrogen cycle.";
RL   Proc. Natl. Acad. Sci. U.S.A. 105:15094-15099(2008).
CC   -!- FUNCTION: MSP binds to a putative Mn-binding protein and keeps 2 of the
CC       4 Mn-atoms associated with PSII. {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the PsbO family. {ECO:0000305}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=AAF13997.1; Type=Erroneous initiation; Evidence={ECO:0000305};
CC       Sequence=ACB51920.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; AF201467; AAF13997.1; ALT_INIT; Genomic_DNA.
DR   EMBL; CP000806; ACB51920.1; ALT_INIT; Genomic_DNA.
DR   RefSeq; WP_009544738.1; NC_010546.1.
DR   AlphaFoldDB; Q9R6W6; -.
DR   SMR; Q9R6W6; -.
DR   STRING; 43989.cce_2572; -.
DR   EnsemblBacteria; ACB51920; ACB51920; cce_2572.
DR   KEGG; cyt:cce_2572; -.
DR   eggNOG; ENOG502Z7ZP; Bacteria.
DR   HOGENOM; CLU_063138_0_0_3; -.
DR   OMA; GKANDCP; -.
DR   OrthoDB; 1569080at2; -.
DR   Proteomes; UP000001203; Chromosome circular.
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   3: Inferred from homology;
KW   Manganese; Photosynthesis; Photosystem II; Reference proteome; Signal.
FT   SIGNAL          1..28
FT                   /evidence="ECO:0000255"
FT   CHAIN           29..275
FT                   /note="Photosystem II manganese-stabilizing polypeptide"
FT                   /id="PRO_0000029566"
SQ   SEQUENCE   275 AA;  29971 MW;  89912B01911413DB CRC64;
     MRFRTLLIAF LALCLGLITA CSEGPANAVN PQDLTYDEIL NTGLANKCPQ ISEFTRGSIP
     IEPGQTYFVD DLCLEPQEYF VKEEPVNKRQ EAEYVPGKLL TRYTTSLEQI SGKITVDEDG
     VVTFYEEGGI DFQPVTVQLP GGEQVPFFFT IKNLVGKTEP GFSSINSSID FEGDFRVPSY
     RGATFLDPKG RGLATGYDNA VALPATADKE DYANVKQTPI GKGSISLQVT KVDQATGEIA
     GVFDSEQPSD TDLGAKEPVE VKIRGIFYAR VTPEA