Aktories K, Geipel U, Wille M, Just I
Rudolf-Buchheim Institut für Pharmakologie, Universität Giessen.
J Physiol (Paris). 1990;84(4):262-6.
Clostridium botulinum C2 toxin and Clostridium perfringens iota toxin belong to a novel family of actin ADP-ribosylating toxins. ADP-ribosylation of actin inhibits actin polymerization and G-actin-associated ATPase activity. The ADP-form of actin is ADP-ribosylated at a higher rate than actin with bound ATP. ADP-ribosylation of actin is reversible, a reaction, which is accompanied by reconstitution of actin ATPase activity.
肉毒梭菌C2毒素和产气荚膜梭菌iota毒素属于肌动蛋白ADP核糖基化毒素的一个新家族。肌动蛋白的ADP核糖基化抑制肌动蛋白聚合和G-肌动蛋白相关的ATP酶活性。与结合ATP的肌动蛋白相比,ADP形式的肌动蛋白以更高的速率被ADP核糖基化。肌动蛋白的ADP核糖基化是可逆的,该反应伴随着肌动蛋白ATP酶活性的重建。