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The free energy for hydrolysis of a microtubule-bound nucleotide triphosphate is near zero: all of the free energy for hydrolysis is stored in the microtubule lattice [published erratum appears in J Cell Biol 1995 Apr;129(2):549]
The standard free energy for hydrolysis of the GTP analogue guanylyl- (a,b)-methylene-diphosphonate (GMPCPP), which is -5.18 kcal in solution, was found to be -3.79 kcal in tubulin dimers, and only -0.90 kcal in tubulin subunits in microtubules. The near-zero change in standard free energy for GMPCP...
| Formato: | Texto |
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| Lenguaje: | English |
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The Rockefeller University Press
1994
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| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2120239/ https://www.ncbi.nlm.nih.gov/pubmed/7962059 |