Motor-dependent microtubule disassembly driven by tubulin tyrosination.
Motor-dependent microtubule disassembly driven by tubulin tyrosination.
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DOI:
10.1083/jcb.200902142
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发表时间:
2009-06-29
期刊:
影响因子:
--
通讯作者:
Andrieux A
中科院分区:
文献类型:
--
作者:
Peris L;Wagenbach M;Lafanechère L;Brocard J;Moore AT;Kozielski F;Job D;Wordeman L;Andrieux A
In cells, stable microtubules (MTs) are covalently modified by a carboxypeptidase, which removes the C-terminal Tyr residue of α-tubulin. The significance of this selective detyrosination of MTs is not understood. In this study, we report that tubulin detyrosination in fibroblasts inhibits MT disassembly. This inhibition is relieved by overexpression of the depolymerizing motor mitotic centromere-associated kinesin (MCAK). Conversely, suppression of MCAK expression prevents disassembly of normal tyrosinated MTs in fibroblasts. Detyrosination of MTs suppresses the activity of MCAK in vitro, apparently as the result of a decreased affinity of the adenosine diphosphate (ADP)–inorganic phosphate- and ADP-bound forms of MCAK for the MT lattice. Detyrosination also impairs MT disassembly in neurons and inhibits the activity of the neuronal depolymerizing motor KIF2A in vitro. These results indicate that MT depolymerizing motors are directly inhibited by the detyrosination of tubulin, resulting in the stabilization of cellular MTs. Detyrosination of transiently stabilized MTs may give rise to persistent subpopulations of disassembly-resistant polymers to sustain subcellular cytoskeletal differentiation.
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DOI:
10.1083/jcb.200512058
发表时间:
2006-09-11
期刊:
The Journal of cell biology
影响因子:
--
作者:
Peris L;Thery M;Fauré J;Saoudi Y;Lafanechère L;Chilton JK;Gordon-Weeks P;Galjart N;Bornens M;Wordeman L;Wehland J;Andrieux A;Job D
通讯作者:
Job D
影响因子:
7.8
作者:
Komarova, Yulia A;Akhmanova, Anna S;Kojima, Shin-Ichiro;Galjart, Niels;Borisy, Gary G
通讯作者:
Borisy, Gary G
影响因子:
3.3
作者:
Kline-Smith, SL;Walczak, CE
通讯作者:
Walczak, CE
影响因子:
21.3
作者:
Gupta, Mohan L., Jr.;Carvalho, Pedro;Pellman, David
通讯作者:
Pellman, David
影响因子:
2.9
作者:
PATURLE, L;WEHLAND, J;JOB, D
通讯作者:
JOB, D