Any of a number of antibiot-ics produced by certain bacteria. The mainone,actinomycin D (or dactinomycin),canbind between neighbouring base pairs inDNA,preventing RNA synthesis. It is usedin the treatment of some cancers.由某些细菌产生的一类抗生素。主要的一种是放射菌素D(或更生......(本文共 259 字) [阅读本文] >>