aspartokinaseWiktionary 原文英美构词拆解aspartoasparto-前缀kinasekinase词干词源说明From asparto- + kinase.释义名词noun1(organic chemistry) An enzyme that catalyzes the phosphorylation of the amino acid aspartate, the first step in the biosynthesis of three essential amino acids: methionine, lysine, and threonine.