The biosynthesis of 2-amino-4-hydroxy-6-substituted pteridines. The origin of carbon atoms 6, 7, and 9 of folic acid.
D000227:Adenine Nucleotides; D002244:Carbon / Q000378:metabolism*; D002247:Carbon Isotopes; D003352:Corynebacterium / Q000378:metabolism*; D005492:Folic Acid / Q000096:biosynthesis*; D006150:Guanine Nucleotides; D066298:In Vitro Techniques; D009705:Nucleosides / Q000378:metabolism*
D000227:Adenine Nucleotides; D002247:Carbon Isotopes; D006150:Guanine Nucleotides; D009705:Nucleosides; D002244:Carbon; D005492:Folic Acid