<prompt> Nitrogen atoms in purines are derived from all except-AspaateGlutamineGlutamateGlycine  <response>: Nitrogen atoms in purines are derived from amino acids - Aspaate Glutamine Glycine Nitrogen atoms in purines Carbon atoms in purines N1 from Aspaate C2 from N10Formyl Tetrahydrofolate N3 N9 from Glutamine C4 and C5 from Glycine N7 from Glycine C6 from CO2 C8 from N5,N10Methenyl THF 