摘要:
A biosynthetic pathway of an antitumor antibiotic vicenistatin was investigated by feeding experiments of [1-C-13] and [1,2-C-13(2)]acetate, [1-C-13]propionate, [2,3,3-H-2(3)]glutamate, and D-[6,6-H-2(2)]glucose. The elongating units of the aglycon of vicenistatin are derived from standard acetate-propionate, whereas the starter unit appears to be derived from a 3-amino-2-methylpropionate equivalent through the glutamate mutase reaction. (C) 1998 Elsevier Science Ltd. All rights reserved.