the tubulin-myosin binding occurred moderately even at 0 degrees c and was not affected by ca2+ ( 2 mm ) , colchicine ( 200 microm ) , or mg-atp ( 4 mm ) , reflecting that the ability of tubulin to bind to myosin was different from the ability of tubulin to form microtubules and that the nature of tubulin-myosin binding was different from that of f-actin-myosin binding .
C0041348
tubulin
C0026046
microtubules