UniProt functional annotation for P0ABU5

UniProt code: P0ABU5.

Organism: Escherichia coli (strain K12).
Taxonomy: Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales; Enterobacteriaceae; Escherichia.
 
Function: Displays glyoxalase activity, catalyzing the conversion of glyoxal to glycolate (PubMed:26678554). However, this apparent glyoxalase activity may reflect a protein deglycase activity, which could be the primary function of this protein like other DJ-1 superfamily members such as PARK7, YajL, YhbO and HchA (Probable). Is not able to use methylglyoxal as substrate (PubMed:26678554). {ECO:0000269|PubMed:26678554, ECO:0000305}.
 
Catalytic activity: Reaction=glyoxal + H2O = glycolate + H(+); Xref=Rhea:RHEA:51672, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:29805, ChEBI:CHEBI:34779; Evidence={ECO:0000269|PubMed:26678554};
Biophysicochemical properties: Kinetic parameters: KM=1.21 mM for glyoxal (at pH 7.4 and 37 degrees Celsius) {ECO:0000269|PubMed:26678554}; Note=kcat is 0.48 min(-1) with glyoxal as substrate (at pH 7.4 and 37 degrees Celsius). {ECO:0000269|PubMed:26678554};
Subunit: Homodimer. {ECO:0000305|PubMed:16021622, ECO:0000305|Ref.7}.
Similarity: Belongs to the peptidase C56 family. {ECO:0000305}.
Sequence caution: Sequence=AAA58011.1; Type=Erroneous initiation; Note=Extended N-terminus.; Evidence={ECO:0000305};

Annotations taken from UniProtKB at the EBI.