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Science. 1972 Sep 22;177(4054):1104-5.

Microtubule formation in vitro in solutions containing low calcium concentrations.

Abstract

Isolated rat brain tubulin can be repolymerized in vitro in solutions containing adenosine triphosphate or guanosine triphosphate, magnesium ions, and a good calcium chelator. The extreme sensitivity of tubulin to calcium ions explains the failure of previous efforts to obtain polymerization and suggests a possible mechanism for regulation of microtubule polymerization in vivo.

PMID:
4626639
[PubMed - indexed for MEDLINE]
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