Tagatose bisphosphate aldolase

In enzymology, a tagatose-bisphosphate aldolase (EC 4.1.2.40) is an enzyme that catalyzes the chemical reaction

D-tagatose 1,6-bisphosphate ⇌ glycerone phosphate + D-glyceraldehyde 3-phosphate

Hence, this enzyme has one substrate, D-tagatose 1,6-bisphosphate, and two products, glycerone phosphate and D-glyceraldehyde 3-phosphate.

This enzyme belongs to the family of lyases, specifically the aldehyde-lyases, which cleave carbon-carbon bonds. The systematic name of this enzyme class is D-tagatose 1,6-bisphosphate D-glyceraldehyde-3-phosphate-lyase (glycerone-phosphate-forming). This enzyme is also called D-tagatose-1,6-bisphosphate triosephosphate lyase. This enzyme participates in galactose metabolism.