Microtubule dynamics: an interplay of biochemistry and mechanics.
Microtubule dynamics: an interplay of biochemistry and mechanics.
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DOI:
10.1038/s41580-018-0009-y
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发表时间:
2018-07
期刊:
影响因子:
--
通讯作者:
Rice LM
中科院分区:
文献类型:
--
作者:
Brouhard GJ;Rice LM
Microtubules are dynamic polymers of αβ-tubulin that are essential for intracellular organization and chromosome segregation. Microtubule growth and shrinkage occur via addition and loss of αβ-tubulin subunits — biochemical processes. Dynamic microtubules can also exert forces by pushing or pulling against a load – mechanical processes. Recent advances at the intersection of biochemistry and mechanics have revealed the existence of multiple conformations of αβ-tubulin and their central role in dictating the mechanisms of microtubule dynamics and how microtubules do work. Microtubule associated proteins selectively target specific tubulin conformations to regulate microtubule dynamics, and mechanical forces can also influence microtubule dynamics by altering the balance of tubulin conformations. Importantly, the conformational states of tubulin dimers appear to be coupled throughout the lattice, in that the conformation of one dimer affects the conformation of its nearest neighbors and beyond. This coupling provides a long-range mechanism by which MAPs and forces can modulate microtubule growth and shrinkage. These findings provide evidence that the interplay between biochemistry and mechanics is essential for the cellular functions of microtubules.
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DOI:
10.1083/jcb.201607060
发表时间:
2017-04-03
期刊:
The Journal of cell biology
影响因子:
--
作者:
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通讯作者:
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影响因子:
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作者:
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通讯作者:
Chang, Fred
影响因子:
64.5
作者:
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通讯作者:
Galjart, N
影响因子:
--
作者:
BRE, MH;KARSENTI, E
通讯作者:
KARSENTI, E
影响因子:
64.5
作者:
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