Amino acid biosynthesis

tryptophan synthase subunit alpha (RefSeq)
tryptophan synthase subunit beta (RefSeq)
anthranilate phosphoribosyltransferase (RefSeq)
anthranilate synthase component I (RefSeq)
Serine O-acetyltransferase (RefSeq)
O-acetylserine (Thiol)-lyase (RefSeq)
phosphoserine phosphatase (RefSeq)
gamma-glutamyl kinase (RefSeq)
gamma-glutamyl phosphate reductase (RefSeq)
threonine synthase (RefSeq)