3d image of phosphoribosylaminoimidazolesuccinocarboxamide skeletal formula

phosphoribosylaminoimidazolesuccinocarboxamide saicar intermediate purine atp l-aspartate 5-aminoimidazole-4-carboxyribonucleotide cair adp phosphate phosphoribosylaminoimidazolesuccinocarboxamide synthetase saicar purine nucleotide biosynthesis 3d metabolite metabolism cycle mechanism pathway path catabolism biosynthetic biogenesis substrate precursor synthesis derivative bioprecursor metabolic enzyme endogenous contractor human metabolome database hmdb molecule molecular formula skeletal structural structure ball stick bioactive cell biochemistry