(2R, 3S)-N-Benzoyl-3-phenylisoserine is an intermediate in the preparation of potent anticancer drug Paclitaxel used to study the location of the binding sites.

HPPE is a selective inhibitor of Bach1 that acts non-electrophilically. HPPE targets the heme-binding sites on the Bach1 protein and leads to the alleviation of Bach1-mediated repression.

Threonine is an essential amino acid in humans. It is abundant in human plasma particularly in newborns. Severe deficiency of threonine causes neurological dysfunction and lameness in experimental animals. Threonine is an immunostimulant which promotes the growth of thymus gland. It also can probably promote cell immune defense function.