The tubulin code: molecular components, readout mechanisms, and functions.

The tubulin code: molecular components, readout mechanisms, and functions.
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微管蛋白代码:分子成分、读出机制和功能。

DOI:
10.1083/jcb.201406055
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发表时间:
2014-08-18
期刊:
The Journal of cell biology
影响因子:
--
通讯作者:
Janke C
Janke C
中科院分区:
其他
文献类型:
--
作者:
Janke C

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微管是由α/β-微管蛋白异源二聚体动态组装而成的细胞骨架丝。微管蛋白的一级序列和结构以及微管的性质和结构在真核生物中高度保守。尽管这种保守性,微管蛋白是由两种方式产生的异质性:通过表达不同的微管蛋白同种型和翻译后修饰(PTM)。确定产生和控制微管蛋白异质性的机制以及这种异质性如何影响微管功能是该领域的长期目标。最近关于微管蛋白PTM的工作揭示了这些修饰如何有助于协调细胞中微管复杂功能的“微管蛋白密码”。
Microtubules are cytoskeletal filaments that are dynamically assembled from α/β-tubulin heterodimers. The primary sequence and structure of the tubulin proteins and, consequently, the properties and architecture of microtubules are highly conserved in eukaryotes. Despite this conservation, tubulin is subject to heterogeneity that is generated in two ways: by the expression of different tubulin isotypes and by posttranslational modifications (PTMs). Identifying the mechanisms that generate and control tubulin heterogeneity and how this heterogeneity affects microtubule function are long-standing goals in the field. Recent work on tubulin PTMs has shed light on how these modifications could contribute to a “tubulin code” that coordinates the complex functions of microtubules in cells.
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