The amounts of isoaccepting tRNAAla and tRNAGly in the posterior silkgland of the Eri-silkworm Philosamia cynthia ricini were analysed by selective 32P-labeling of individual species in total tRNA population.

• 用氨基酸选择性地保护相应的tRNA同功受体,使其3′端羟基不被过碘酸氧化,去氨酰化后用~(32)pCp标记、双向聚丙烯酰胺凝胶电泳分离的方法,分析了蓖麻蚕后部丝腺体tRNA~(Ala)和tRNA~(Gly)同功受体相对含量的变化。