Regulation of microtubule stability and organization by mammalian Par3 in specifying neuronal polarity.
Regulation of microtubule stability and organization by mammalian Par3 in specifying neuronal polarity.
复制标题
DOI:
10.1016/j.devcel.2012.11.014
复制
发表时间:
2013-01-14
影响因子:
11.8
通讯作者:
Shi, Song-Hai
中科院分区:
文献类型:
--
作者:
Chen, She;Chen, Jia;Shi, Hang;Wei, Michelle;Castaneda-Castellanos, David R.;Bultje, Ronald S.;Pei, Xin;Kriegstein, Arnold R.;Zhang, Mingjie;Shi, Song-Hai
Polarization of mammalian neurons with a specified axon requires precise regulation of microtubule and actin dynamics in the developing neurites. Here we show that mammalian partition defective 3 (mPar3), a key component of the Par polarity complex that regulates the polarization of many cell types including neurons, directly regulates microtubule stability and organization. The N-terminal portion of mPar3 exhibits strong microtubule binding, bundling and stabilization activity, which can be suppressed by its C-terminal portion via an intra-molecular interaction. Interestingly, the inter-molecular oligomerization of mPar3 is able to relieve the intra-molecular interaction and thereby promote microtubule bundling and stabilization. Furthermore, disruption of this microtubule regulatory activity of mPar3 impairs its function in axon specification. Together, these results demonstrate a role for mPar3 in directly regulating microtubule organization that is crucial for neuronal polarization.
登录
查看更多内容
影响因子:
2.7
作者:
Becalska, Agata N.;Gavis, Elizabeth R.
通讯作者:
Gavis, Elizabeth R.
影响因子:
4.6
作者:
Doerflinger, Helene;Vogt, Nina;St Johnston, Daniel
通讯作者:
St Johnston, Daniel
影响因子:
21.3
作者:
Fukata, Y;Itoh, TJ;Kaibuchi, K
通讯作者:
Kaibuchi, K
影响因子:
13.9
作者:
Barnes AP;Polleux F
通讯作者:
Polleux F
影响因子:
21.3
作者:
Hergovich, A;Lisztwan, J;Krek, W
通讯作者:
Krek, W