UniProt functional annotation for P32169

UniProt code: P32169.

Organism: Escherichia coli (strain K12).
Taxonomy: Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales; Enterobacteriaceae; Escherichia.
 
Function: Catalyzes the reversible cleavage of L-rhamnulose-1-phosphate to dihydroxyacetone phosphate (DHAP) and L-lactaldehyde (PubMed:12962479). Also catalyzes the dephosphorylation of phospho- serine in vitro (PubMed:25848029). {ECO:0000269|PubMed:12962479, ECO:0000269|PubMed:25848029}.
 
Catalytic activity: Reaction=L-rhamnulose 1-phosphate = (S)-lactaldehyde + dihydroxyacetone phosphate; Xref=Rhea:RHEA:19689, ChEBI:CHEBI:18041, ChEBI:CHEBI:57642, ChEBI:CHEBI:58313; EC=4.1.2.19; Evidence={ECO:0000269|PubMed:12962479};
Cofactor: Name=Zn(2+); Xref=ChEBI:CHEBI:29105; Evidence={ECO:0000269|PubMed:11976494, ECO:0000269|PubMed:12962479}; Note=Binds 1 zinc ion per subunit. {ECO:0000269|PubMed:11976494, ECO:0000269|PubMed:12962479};
Biophysicochemical properties: Kinetic parameters: KM=0.48 mM for L-rhamnulose 1-phosphate (at 37 degrees Celsius) {ECO:0000269|PubMed:12962479};
Pathway: Carbohydrate degradation; L-rhamnose degradation; glycerone phosphate from L-rhamnose: step 3/3.
Subunit: Homotetramer. {ECO:0000269|PubMed:11976494}.
Subcellular location: Cytoplasm.
Induction: Induced by L-rhamnose via the RhaR-RhaS regulatory cascade. Binding of the cAMP receptor protein (CRP) is required for full expression. {ECO:0000269|PubMed:10852886, ECO:0000269|PubMed:8230210}.
Similarity: Belongs to the aldolase class II family. RhaD subfamily. {ECO:0000305}.

Annotations taken from UniProtKB at the EBI.