抄録
Microtubule reassembly in crude extracts of porcine brain was inhibited by 10-5M Ca2+, whereas 10-3M Ca2+ was required for inhibition of the reassembly from purified microtubular proteins. This accounts for the apparent discrepancies between the results reported by other investigators. Furthermore, the Ca-sensitivity of the purified microtubular proteins was nearly completely recovered on addition of a fraction obtained from crude brain extract.
