title: Decarboxylases for polyamine biosynthesis in Drosophila melanogaster larvae.
abstract: Ornithine decarboxylase (L-ornithine carboxy-lase, EC 4.1.1.17) and S-adenosyl-methionine decarboxylase (S-adenosyl-L-methionine carboxy-lase, EC 4.1.1.50) were assayed in Drosophilia melanogaster larvae. The highest enzyme activities were detected in 24 and 48 h larvae, with diminishing activities in subsequent larval stages. Stimulation of S-adenosylmethionine decarboxylase by putrescine was demonstrable in late but not in early stages of larval development.
mesh_terms: D012437:Adenosylmethionine Decarboxylase / Q000378:metabolism*; D000818:Animals; D002262:Carboxy-Lyases / Q000378:metabolism*; D004331:Drosophila melanogaster; D007700:Kinetics; D007814:Larva / Q000201:enzymology; D009952:Ornithine / Q000096:biosynthesis; D009955:Ornithine Decarboxylase / Q000378:metabolism*; D011073:Polyamines / Q000096:biosynthesis*; D011700:Putrescine / Q000096:biosynthesis; D012436:S-Adenosylmethionine / Q000096:biosynthesis
chemical_list: D011073:Polyamines; D012436:S-Adenosylmethionine; D009952:Ornithine; D002262:Carboxy-Lyases; D009955:Ornithine Decarboxylase; D012437:Adenosylmethionine Decarboxylase; D011700:Putrescine