ID   HSLO_STRE4              Reviewed;         290 AA.
AC   C0MAF0;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   05-MAY-2009, sequence version 1.
DT   25-MAY-2022, entry version 57.
DE   RecName: Full=33 kDa chaperonin {ECO:0000255|HAMAP-Rule:MF_00117};
DE   AltName: Full=Heat shock protein 33 homolog {ECO:0000255|HAMAP-Rule:MF_00117};
DE            Short=HSP33 {ECO:0000255|HAMAP-Rule:MF_00117};
GN   Name=hslO {ECO:0000255|HAMAP-Rule:MF_00117}; OrderedLocusNames=SEQ_2120;
OS   Streptococcus equi subsp. equi (strain 4047).
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC   Streptococcus.
OX   NCBI_TaxID=553482;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=4047;
RX   PubMed=19325880; DOI=10.1371/journal.ppat.1000346;
RA   Holden M.T.G., Heather Z., Paillot R., Steward K.F., Webb K., Ainslie F.,
RA   Jourdan T., Bason N.C., Holroyd N.E., Mungall K., Quail M.A., Sanders M.,
RA   Simmonds M., Willey D., Brooks K., Aanensen D.M., Spratt B.G., Jolley K.A.,
RA   Maiden M.C.J., Kehoe M., Chanter N., Bentley S.D., Robinson C.,
RA   Maskell D.J., Parkhill J., Waller A.S.;
RT   "Genomic evidence for the evolution of Streptococcus equi: host
RT   restriction, increased virulence, and genetic exchange with human
RT   pathogens.";
RL   PLoS Pathog. 5:E1000346-E1000346(2009).
CC   -!- FUNCTION: Redox regulated molecular chaperone. Protects both thermally
CC       unfolding and oxidatively damaged proteins from irreversible
CC       aggregation. Plays an important role in the bacterial defense system
CC       toward oxidative stress. {ECO:0000255|HAMAP-Rule:MF_00117}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00117}.
CC   -!- PTM: Under oxidizing conditions two disulfide bonds are formed
CC       involving the reactive cysteines. Under reducing conditions zinc is
CC       bound to the reactive cysteines and the protein is inactive.
CC       {ECO:0000255|HAMAP-Rule:MF_00117}.
CC   -!- SIMILARITY: Belongs to the HSP33 family. {ECO:0000255|HAMAP-
CC       Rule:MF_00117}.
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DR   EMBL; FM204883; CAW95464.1; -; Genomic_DNA.
DR   RefSeq; WP_015898642.1; NC_012471.1.
DR   AlphaFoldDB; C0MAF0; -.
DR   SMR; C0MAF0; -.
DR   EnsemblBacteria; CAW95464; CAW95464; SEQ_2120.
DR   KEGG; seu:SEQ_2120; -.
DR   HOGENOM; CLU_054493_1_0_9; -.
DR   OMA; DMQCECC; -.
DR   OrthoDB; 1406579at2; -.
DR   Proteomes; UP000001365; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0051082; F:unfolded protein binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0006457; P:protein folding; IEA:InterPro.
DR   CDD; cd00498; Hsp33; 1.
DR   Gene3D; 3.55.30.10; -; 1.
DR   Gene3D; 3.90.1280.10; -; 1.
DR   HAMAP; MF_00117; HslO; 1.
DR   InterPro; IPR000397; Heat_shock_Hsp33.
DR   InterPro; IPR016154; Heat_shock_Hsp33_C.
DR   InterPro; IPR016153; Heat_shock_Hsp33_N.
DR   PANTHER; PTHR30111; PTHR30111; 1.
DR   Pfam; PF01430; HSP33; 1.
DR   PIRSF; PIRSF005261; Heat_shock_Hsp33; 1.
DR   SUPFAM; SSF118352; SSF118352; 1.
DR   SUPFAM; SSF64397; SSF64397; 1.
PE   3: Inferred from homology;
KW   Chaperone; Cytoplasm; Disulfide bond; Redox-active center; Stress response;
KW   Zinc.
FT   CHAIN           1..290
FT                   /note="33 kDa chaperonin"
FT                   /id="PRO_1000119264"
FT   DISULFID        235..237
FT                   /note="Redox-active"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00117"
FT   DISULFID        268..271
FT                   /note="Redox-active"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00117"
SQ   SEQUENCE   290 AA;  31535 MW;  402435E532FF0090 CRC64;
     MDKLIKTISA SGAFRAYVLD CTETVRYAQE RHHTLSSSTV ALGRTLIANQ ILAANQKGDS
     KVTVKVIGDS SFGHIISVAD TKGHVKGYIQ NPGVDIKKTA TGEVLVGPFM GQGHFVTITD
     YGTGNPYTST TPLITGEIGE DLAYYLTESE QTPSAVGLNV LLDQEDKVKV AGGFMLQVLP
     GASVEEISHY EKRIQEMPAI STLLASENHI DALLAAIYGE EPYKRLAEEQ LSFQCDCSRE
     RFASALMSLP KADLLTMLNE DKGAEIVCQF CGTKYQFDQT DLEVLINDKA