Aspartate semialdehyde
dehydrogenase is an enzyme in the conversion
of aspartate to homoserine
(see here) in the pathway leading
to biosynthesis of threonine,
isoleucine, and methionine.
It catalyzes the reaction that follows:
-Aspartyl Phosphate + NADPH + H+ <=> Aspartic
Semialdehyde + NADP+ + Pi
See also: Metabolism of Serine, Glycine, and Threonine, Metabolism of Valine, Leucine, Isoleucine, and Lysine, Metabolism of Sulfur-Containing Amino Acids