title: Evidence for a precursor in the biosynthesis of insulin.
mesh_terms: D007516:Adenoma, Islet Cell / Q000378:metabolism*; D000595:Amino Acid Sequence; D000818:Animals; D002850:Chromatography, Gel; D006801:Humans; D007003:Hypoglycemia / Q000378:metabolism*; D066298:In Vitro Techniques; D007328:Insulin / Q000096:biosynthesis*; D007930:Leucine / Q000378:metabolism; D010649:Phenylalanine / Q000378:metabolism; D051381:Rats; D014316:Tritium
chemical_list: D007328:Insulin; D014316:Tritium; D010649:Phenylalanine; D007930:Leucine