When Taxol met tubulin
نویسندگان
چکیده
منابع مشابه
Understanding tubulin-Taxol interactions: mutations that impart Taxol binding to yeast tubulin.
We have successfully used mutagenesis to engineer Taxol (paclitaxel) binding activity in Saccharomyces cerevisiae tubulin. Taxol, a successful antitumor agent, acts by promoting tubulin assembly and stabilizing microtubules. Several structurally diverse antimitotic compounds, including the epothilones, compete with Taxol for binding to mammalian microtubules, suggesting that Taxol and these com...
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Taxol, a natural plant product that enhances the rate and extent of microtubule assembly in vitro and stabilizes microtubules in vitro and in cells, was labeled with tritium by catalytic exchange with (3)H(2)O. The binding of [(3)H]taxol to microtubule protein was studied by a sedimentation assay. Microtubules assembled in the presence of [(3)H]taxol bind drug specifically with an apparent bind...
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Microtubules exist in dynamic equilibrium, growing and shrinking by the addition or loss of tubulin dimers from the ends of protofilaments. The hydrolysis of GTP in beta-tubulin destabilizes the microtubule lattice by increasing the curvature of protofilaments in the microtubule and putting strain on the lattice. The observation that protofilament curvature depends on GTP hydrolysis suggests th...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 2020
ISSN: 0021-9258
DOI: 10.1074/jbc.cl120.015923