• In enzymology, a homoserine O-succinyltransferase (EC 2.3.1.46) is an enzyme that catalyzes the chemical reaction succinyl-CoA + L-homoserine ⇌ {\displaystyle \rightleftharpoons } CoA + O-succinyl-L-homoserine Thus, the two substrates of this enzyme are succinyl-CoA and L-homoserine, whereas its two products are CoA and O-succinyl-L-homoserine. (wikipedia.org)