Secondary Products Derived from Glycine, L-Serine, and L-Alanine

Glycine (2-aminoacetie acid), L-serine [(S)-2-amino-3-hydroxypropionic acid] and L-alanine [(S)-2-aminopropionic acid] are simple α-amino acids. The secondary products derived either show still the glycine, serine or alanine skeleton, cf. the structure of glycine conjugates or O-serine esters or the amino acids are used as building stones in the biosynthesis of more complicated structures, cf. the formulas of porphyrins, purines, and of biotin.