The enzyme phenylserine aldolase () catalyzes the chemical reaction
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 L-threo-3-phenylserine benzaldehyde-lyase (glycine-forming). This enzyme is also called L-threo-3-phenylserine benzaldehyde-lyase. It employs one cofactor, pyridoxal phosphate.
As of late 2007, only one structure has been solved for this class of enzymes, with the PDB accession code .