Threonine racemase
In enzymology, a threonine racemase is an enzyme that catalyzes the chemical reaction
Hence, this enzyme has one substrate, L-threonine, and one product, D-threonine.
This enzyme belongs to the family of isomerases, specifically those racemases and epimerases acting on amino acids and derivatives. The systematic name of this enzyme class is threonine racemase.