Ethanolamine phosphate phospho lyase

In enzymology, an ethanolamine-phosphate phospho-lyase (EC 4.2.3.2) is an enzyme that catalyzes the chemical reaction

Thus, the two substrates of this enzyme are ethanolamine phosphate and H₂O, whereas its 3 products are acetaldehyde, NH₃, and phosphate.

This enzyme belongs to the family of lyases, specifically those carbon-oxygen lyases acting on phosphates. The systematic name of this enzyme class is ethanolamine-phosphate phosphate-lyase (deaminating acetaldehyde-forming). Other names in common use include O-phosphoethanolamine-phospholyase, amino alcohol O-phosphate phospholyase, O-phosphorylethanol-amine phospho-lyase, and ethanolamine-phosphate phospho-lyase (deaminating). It employs one cofactor, pyridoxal phosphate.