The stereoisomer D-phenylalanine (DPA) could be produced by conventional natural and organic synthesis, possibly as just one enantiomer or like a component of the racemic combination. It doesn't take part in protein biosynthesis although it is present in proteins in smaller amounts - specifically aged proteins and food proteins which https://arthuraedby.sharebyblog.com/30306152/phenibut-supplement-online-an-overview