title: Stereochemical studies on the formation of porphobilinogen.
mesh_terms: D000622:Aminolevulinic Acid; D000818:Animals; D002250:Carbon Radioisotopes; D002417:Cattle; D006836:Hydro-Lyases / Q000378:metabolism*; D007553:Isotope Labeling; D008099:Liver / Q000201:enzymology; D008722:Methods; D011162:Porphobilinogen / Q000096:biosynthesis*; D000623:Porphobilinogen Synthase / Q000378:metabolism*; D014316:Tritium
chemical_list: D002250:Carbon Radioisotopes; D014316:Tritium; D011162:Porphobilinogen; D000622:Aminolevulinic Acid; D006836:Hydro-Lyases; D000623:Porphobilinogen Synthase