title: Protoheme synthesis system in the cytoplastic "petite" mutant of Saccharomyces cerevisiae.
mesh_terms: D000624:5-Aminolevulinate Synthetase / Q000378:metabolism; D000332:Aerobiosis; D000693:Anaerobiosis; D002455:Cell Division; D006418:Heme / Q000096:biosynthesis*; D009154:Mutation; D000623:Porphobilinogen Synthase / Q000378:metabolism; D011166:Porphyrins / Q000096:biosynthesis; D012441:Saccharomyces cerevisiae / Q000378:metabolism*
chemical_list: D011166:Porphyrins; D006418:Heme; D000624:5-Aminolevulinate Synthetase; D000623:Porphobilinogen Synthase