C S Regula

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Although it is now apparent that the intracellular pH may rise considerably above neutrality under physiological conditions, information on the effect of alkaline pH on microtubule assembly and disassembly is still quite fragmentay. We have studied the assembly/disassembly of bovine brain microtubule protein at alkaline pH in vitro. When microtubules are(More)
We studied the molecular form of tubulin in solution by ultrafiltration, nondenaturing electrophoresis, and chemical cross-linking. Our results are not consistent with the generally-held belief that tubulin in solution is a 110,000-mol-wt dimer. Rather, tubulin in solution consists of small oligomers; dimers are a minority species. The small proportion of(More)
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