| 摘要 |
<p>Using the differential display method, a juvenile hormone acid transmethylase gene is cloned from cDNA originating in silkworm corpus allatum. It is found out that a recombinant protein, which has been expressed in Escherichia coli transformed by a vector DNA carrying the above gene transferred thereinto, has a jevenile homrone acid methyltransferase activity. Based on amino acid sequence homologies, furthermore, juvenile hormone acid transmethylase genes of Drosphila, mosquito, Spodoptera litura and Helicoverpa arnigera are found out and it is found out that proteins encoded by the juvenile hormone acid transmethylase genes of Drosphila, Spodoptera litura and Helicoverpa arnigera have the jevenile homrone acid methyltransferase activity.</p> |
