Bryan J
Ann N Y Acad Sci. 1975 Jun 30;253:247-59. doi: 10.1111/j.1749-6632.1975.tb19204.x.
The present results argue that irradiation of a colchicine-tubulin complex at 366 nm results in destruction of the binding site and the labeling of a small molecule soluble in chloroform-methanol.