Fast P G, Murphy D W, Sohi S S
Experientia. 1978 Jun 15;34(6):762-3. doi: 10.1007/BF01947310.
Enzymically activated delta-endotoxin of Bacillus thuringiensis covalently bound to Sephadex beads, has the same effect on insect cells in tissue culture as free toxin. The effect is prevented by antitoxin antibody and heat denaturation and is not due to a nonspecific protein effect, the beads, or toxin released from the beads. The toxin, therefore, probably acts at the cell surface.
共价结合到葡聚糖凝胶珠上的苏云金芽孢杆菌经酶激活的δ-内毒素，在组织培养中对昆虫细胞的作用与游离毒素相同。这种作用可被抗毒素抗体和热变性所阻止，且不是由非特异性蛋白质效应、珠子或从珠子释放的毒素引起的。因此，毒素可能作用于细胞表面。
