ID   HSLO_METFK              Reviewed;         293 AA.
AC   Q1H2B1;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   27-JUN-2006, sequence version 1.
DT   25-MAY-2022, entry version 81.
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=Mfla_1108;
OS   Methylobacillus flagellatus (strain KT / ATCC 51484 / DSM 6875).
OC   Bacteria; Proteobacteria; Betaproteobacteria; Nitrosomonadales;
OC   Methylophilaceae; Methylobacillus.
OX   NCBI_TaxID=265072;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=KT / ATCC 51484 / DSM 6875;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA   Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S.,
RA   Brettin T., Bruce D., Han C., Tapia R., Saunders E., Gilna P., Schmutz J.,
RA   Larimer F., Land M., Kyrpides N., Anderson I., Richardson P.;
RT   "Complete sequence of Methylobacillus flagellatus KT.";
RL   Submitted (MAR-2006) 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; CP000284; ABE49376.1; -; Genomic_DNA.
DR   RefSeq; WP_011479330.1; NC_007947.1.
DR   AlphaFoldDB; Q1H2B1; -.
DR   SMR; Q1H2B1; -.
DR   STRING; 265072.Mfla_1108; -.
DR   PRIDE; Q1H2B1; -.
DR   EnsemblBacteria; ABE49376; ABE49376; Mfla_1108.
DR   KEGG; mfa:Mfla_1108; -.
DR   eggNOG; COG1281; Bacteria.
DR   HOGENOM; CLU_054493_0_0_4; -.
DR   OMA; DMQCECC; -.
DR   OrthoDB; 1406579at2; -.
DR   Proteomes; UP000002440; 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; 1.10.287.480; -; 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   InterPro; IPR023212; Hsp33_helix_hairpin_bin_dom_sf.
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..293
FT                   /note="33 kDa chaperonin"
FT                   /id="PRO_1000015552"
FT   DISULFID        229..231
FT                   /note="Redox-active"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00117"
FT   DISULFID        262..265
FT                   /note="Redox-active"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00117"
SQ   SEQUENCE   293 AA;  32692 MW;  D682234A3885E520 CRC64;
     MQISDHLHRF LFENTPVRGS IVHLDDSFQQ SLQHHDFPQI LRQALGELMA ASALLAATLK
     LKGGALVLQV QGKGPLKLLV VECTSDLGIR ATAKWSGELD GMSFSDMVSN GHFVITLDPR
     DGGQPYQGIV PVEGGSIAEI LQSYMQRSEQ IDTRMWLACD GKRAAGMLVQ KMPDQPDAAD
     PDAWNRIIML ADTVRDEELL DLSAVSLIKR LFNEEDVRLF KEQPIKFHCG CSRESVGNML
     RMLGEEEVAD ILAEQHTIDI NCDFCNAEYH FDEVDAEQLF TTEIVMPGND VRH