バイラス病體のプロテアーゼに關する研究

Abstract

In the previous paper some properties of proteases of virus-diseased silkworm were described. I have assumed that before the formation of virus molecules in living cells protoplasma proteids, especially nucleoprotein must be rearranged. Furthermore it is supposed that the proteolytic enzymes in living tissues participate certainly in this rearrangement of proteins. As it was reported, in the silkworm body the virus can be formed by artificial means. A group of silkwors was warmed, the second group was fed with mulberry leaves which were wetted with a hydroxylamine solution and the third was given barium peroxide. The treated worms were attacked with a polyhedral disease. It was found that the proteolytic action of worm body was elevated by these treatments. The maximal activity of proteases was observed in the virus-diseased worm.