Microtubule dynamic instability: a new model with coupled GTP hydrolysis and multistep catastrophe.
Microtubule dynamic instability: a new model with coupled GTP hydrolysis and multistep catastrophe.
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DOI:
10.1002/bies.201200131
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发表时间:
2013-05
期刊:
影响因子:
4
通讯作者:
Howard, Jonathon
中科院分区:
文献类型:
--
作者:
Bowne-Anderson, Hugo;Zanic, Marija;Kauer, Monika;Howard, Jonathon
A key question in understanding microtubule dynamics is how GTP hydrolysis leads to catastrophe, the switch from slow growth to rapid shrinkage. We first provide a review of the experimental and modeling literature, and then present a new model of microtubule dynamics. We demonstrate that vectorial, random, and coupled hydrolysis mechanisms are not consistent with the dependence of catastrophe on tubulin concentration and show that, although single-protofilament models can explain many features of dynamics, they do not describe catastrophe as a multistep process. Finally, we present a new combined (coupled plus random hydrolysis) multiple-protofilament model that is a simple, analytically solvable generalization of a single-protofilament model. This model accounts for the observed lifetimes of growing microtubules, the delay to catastrophe following dilution and describes catastrophe as a multistep process.
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影响因子:
3.3
作者:
HYMAN, AA;SALSER, S;MITCHISON, TJ
通讯作者:
MITCHISON, TJ
DOI:
10.1083/jcb.200301147
发表时间:
2003-06-23
期刊:
The Journal of cell biology
影响因子:
--
作者:
Janson ME;de Dood ME;Dogterom M
通讯作者:
Dogterom M
影响因子:
64.8
作者:
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通讯作者:
Dogterom, Marileen
影响因子:
2.4
作者:
Margolin, Gennady;Gregoretti, Ivan V.;Alber, Mark S.
通讯作者:
Alber, Mark S.
影响因子:
2.4
作者:
Margolin, Gennady;Goodson, Holly V.;Alber, Mark S.
通讯作者:
Alber, Mark S.