3d image of beta-ureidoisobutyric acid skeletal formula

beta-ureidoisobutyric acid intermediate catabolism thymine daphnia pulex 2-methylpropanoic human mouse 3d stick path cell stuff biochemistry cycle structural biogenesis formula contractor structure endogenous biology mechanism ball enzyme metabolic bioprecursor biosynthesis substance derivative biomolecule pathway precursor synthesis metabolism compound skeletal atom metabolite component material human metabolome database geometry biosynthetic hmdb