The influence of metal ions, colchicine and vinblastine on ROS axoneme
protein tyrosine kinase was studied. The optimal concentration of Mn2
+ for the reaction is 5 mM; K-m values for ATP and poly(G,T)(n) are 4,
3 mu M and 31 mg/ml, respectively. Ca2+, colchicine and vinblastine we
re shown to inhibit axoneme PTK.