2.7.4.3 adenosine ribonucleotides de novo biosynthesis - - PWY-7219 2.7.4.3 Biosynthesis of secondary metabolites - 01110 - 2.7.4.3 Metabolic pathways - 01100 - 2.7.4.3 Purine metabolism - 00230 - 2.7.4.3 purine metabolism purine metabolism - - 2.7.4.3 Thiamine metabolism - 00730 -