ID   HSLO_ALKCK              Reviewed;         295 AA.
AC   Q5WLV4;
DT   30-MAY-2006, integrated into UniProtKB/Swiss-Prot.
DT   23-NOV-2004, sequence version 1.
DT   25-MAY-2022, entry version 89.
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=ABC0108;
OS   Alkalihalobacillus clausii (strain KSM-K16) (Bacillus clausii).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Alkalihalobacillus.
OX   NCBI_TaxID=66692;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=KSM-K16;
RA   Takaki Y., Kageyama Y., Shimamura S., Suzuki H., Nishi S., Hatada Y.,
RA   Kawai S., Ito S., Horikoshi K.;
RT   "The complete genome sequence of the alkaliphilic Bacillus clausii KSM-
RT   K16.";
RL   Submitted (OCT-2003) to the EMBL/GenBank/DDBJ databases.
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; AP006627; BAD62651.1; -; Genomic_DNA.
DR   RefSeq; WP_011244972.1; NC_006582.1.
DR   AlphaFoldDB; Q5WLV4; -.
DR   SMR; Q5WLV4; -.
DR   STRING; 66692.ABC0108; -.
DR   EnsemblBacteria; BAD62651; BAD62651; ABC0108.
DR   KEGG; bcl:ABC0108; -.
DR   eggNOG; COG1281; Bacteria.
DR   HOGENOM; CLU_054493_1_0_9; -.
DR   OMA; DMQCECC; -.
DR   OrthoDB; 1406579at2; -.
DR   Proteomes; UP000001168; 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;
KW   Reference proteome; Zinc.
FT   CHAIN           1..295
FT                   /note="33 kDa chaperonin"
FT                   /id="PRO_0000238060"
FT   DISULFID        237..239
FT                   /note="Redox-active"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00117"
FT   DISULFID        270..273
FT                   /note="Redox-active"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00117"
SQ   SEQUENCE   295 AA;  31389 MW;  9CD5D49663B32682 CRC64;
     MKDYVVKATA YDGEVRAIAL RATEMVKEAC KRQGTWPTAS AALGRTMMGG ALMASMLKGK
     DKLTVRIQGN GPIGEIIVDA HASGATRGTV TNPHVSPELN SKGKLDVARV VGTEGTLSVV
     KDLGMKEPFT GSVPIVSGEI GDDFTYYFAN SEQTPSSVGV GVLVNPDESV LAAGGFVIQL
     LPGAKEATIT EIEKRIGETP PISKLVEQGK TPEEIINGLL GEENVKFLET KPVFFECSCS
     KERIGNAIIS LGTKEIEAMI TEDGGAETVC HFCNESYSFT EAELKALLEE AESKR