using video-enhanced contract-differential interference contrast ( avec-dic ) microscopy , we examined the properties of particle movement along microtubules and demonstrated that both the velocity of particle movement and the numbers of particles moving are decreased in the presence of ns-20 antiserum or ns-20 affinity-purified antibodies but not in the presence of another antiserum against tubulin .
C0026046
microtubules
C0041348
tubulin