Figure 1.

Biosynthesis and degradation of Asp-derived amino acids. Feedback inhibition is shown as a dotted line with a bar. Activation is shown as a dotted line with an arrowhead. ALS, Acetolactate synthase; ASD, Asp semialdehyde dehydrogenase; CBL, cystathionine β-lyase; DAPAT, diaminopimelate aminotransferase; DAPDC, diaminopimelate decarboxylase; DAPE, diaminopimelate epimerase; DHAD, dihydroxyacid dehydratase; DHDPR, dihydrodipicolinate reductase; HMT, homo-Cys S-methyltransferase; HSK, homo-Ser kinase; KARI, ketol-acid reductoisomerase; MS, Met synthase.