ID   PSBO_NOSS1              Reviewed;         273 AA.
AC   P13907;
DT   01-JAN-1990, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2002, sequence version 2.
DT   25-MAY-2022, entry version 111.
DE   RecName: Full=Photosystem II manganese-stabilizing polypeptide;
DE            Short=MSP;
DE   Flags: Precursor;
GN   Name=psbO; Synonyms=woxA; OrderedLocusNames=all3854;
OS   Nostoc sp. (strain PCC 7120 / SAG 25.82 / UTEX 2576).
OC   Bacteria; Cyanobacteria; Nostocales; Nostocaceae; Nostoc.
OX   NCBI_TaxID=103690;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=2518833; DOI=10.1007/bf00015555;
RA   Borthakur D., Haselkorn R.;
RT   "Nucleotide sequence of the gene encoding the 33 kDa water oxidizing
RT   polypeptide in Anabaena sp. strain PCC 7120 and its expression in
RT   Escherichia coli.";
RL   Plant Mol. Biol. 13:427-439(1989).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=PCC 7120 / SAG 25.82 / UTEX 2576;
RX   PubMed=11759840; DOI=10.1093/dnares/8.5.205;
RA   Kaneko T., Nakamura Y., Wolk C.P., Kuritz T., Sasamoto S., Watanabe A.,
RA   Iriguchi M., Ishikawa A., Kawashima K., Kimura T., Kishida Y., Kohara M.,
RA   Matsumoto M., Matsuno A., Muraki A., Nakazaki N., Shimpo S., Sugimoto M.,
RA   Takazawa M., Yamada M., Yasuda M., Tabata S.;
RT   "Complete genomic sequence of the filamentous nitrogen-fixing
RT   cyanobacterium Anabaena sp. strain PCC 7120.";
RL   DNA Res. 8:205-213(2001).
CC   -!- FUNCTION: MSP binds to a putative Mn-binding protein and keeps 2 of the
CC       4 Mn-atoms associated with PSII.
CC   -!- SIMILARITY: Belongs to the PsbO family. {ECO:0000305}.
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DR   EMBL; X15554; CAA33560.1; -; Genomic_DNA.
DR   EMBL; BA000019; BAB75553.1; -; Genomic_DNA.
DR   PIR; AG2287; AG2287.
DR   PIR; S06736; S06736.
DR   RefSeq; WP_010997995.1; NZ_RSCN01000011.1.
DR   AlphaFoldDB; P13907; -.
DR   SMR; P13907; -.
DR   STRING; 103690.17132988; -.
DR   EnsemblBacteria; BAB75553; BAB75553; BAB75553.
DR   KEGG; ana:all3854; -.
DR   eggNOG; ENOG502Z7ZP; Bacteria.
DR   OMA; GKANDCP; -.
DR   OrthoDB; 1569080at2; -.
DR   Proteomes; UP000002483; Chromosome.
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..29
FT   CHAIN           30..273
FT                   /note="Photosystem II manganese-stabilizing polypeptide"
FT                   /id="PRO_0000029565"
FT   CONFLICT        10
FT                   /note="F -> I (in Ref. 1; CAA33560)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        23..25
FT                   /note="DAP -> ERS (in Ref. 1; CAA33560)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        182
FT                   /note="A -> S (in Ref. 1; CAA33560)"
FT                   /evidence="ECO:0000305"
SQ   SEQUENCE   273 AA;  29638 MW;  FD21FFC03E46668A CRC64;
     MRYRALIVAF LAVCLGLLTA CSDAPASSTR DILTYEQIRG TGLANKCPQL TETSRGSIPL
     DSSKSYVLKE LCLEPTNFFV KEEPANKRQT AEFVAGKLLT RYTSTIDQVS GDLKFNDDSS
     LTFVEKDGLD FQAITVQLPG GERVPFLFTI KNLVAQTQPG LSSLNTSTDF EGTFKVPSYR
     GAAFLDPKGR GVVSGYDNAV ALPAQADDED LTRTNVKRAE ILNGKISLQI AKVDSSSGEI
     AGTFESEQPS DTDLGADEPK EVKIRGIFYA RVE