Kinesin-5 is essential for growth-cone turning.
Kinesin-5 is essential for growth-cone turning.
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DOI:
10.1016/j.cub.2008.11.021
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发表时间:
2008-12-23
期刊:
影响因子:
--
通讯作者:
Baas PW
中科院分区:
文献类型:
--
作者:
Nadar VC;Ketschek A;Myers KA;Gallo G;Baas PW
Inhibition of kinesin-5, a mitotic motor also expressed in neurons, causes axons to grow faster due to alterations in the forces on the microtubules (MTs) in the axonal shaft. Here, we investigated whether kinesin-5 plays a role in growth cone guidance. Growth cone turning requires that MTs in the central (C-) domain enter the peripheral (P-) domain in the direction of the turn. We found that inhibition of kinesin-5 in cultured neurons prevents MTs from polarizing within growth cones and causes them to grow past cues that would normally cause them to turn. We found that kinesin-5 is enriched in the transition (T-) zone of the growth cone and that kinesin-5 is preferentially phosphorylated on the side opposite to the invasion of MTs. Moreover, when a growth cone encounters a turning cue, phospho-kinesin-5 polarizes even before the growth cone turns. Additional studies indicate that kinesin-5 works in part by antagonizing cytoplasmic dynein, and that these motor-driven forces function together with the dynamic properties of the MTs to determine whether MTs can enter the P-domain. We propose that kinesin-5 permits MTs to selectively invade one side of the growth cone by opposing their entry into the other side.
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DOI:
10.1083/jcb.200407191
发表时间:
2005-02-28
期刊:
The Journal of cell biology
影响因子:
--
作者:
He Y;Francis F;Myers KA;Yu W;Black MM;Baas PW
通讯作者:
Baas PW
DOI:
10.1073/pnas.92.10.4289
发表时间:
1995-05-09
影响因子:
11.1
作者:
SAWIN, KE;MITCHISON, TJ
通讯作者:
MITCHISON, TJ
DOI:
10.1083/jcb.128.1.139
发表时间:
1995-01
期刊:
The Journal of cell biology
影响因子:
--
作者:
Tanaka E;Ho T;Kirschner MW
通讯作者:
Kirschner MW
影响因子:
--
作者:
Haque, SA;Hasaka, TP;Baas, PW
通讯作者:
Baas, PW
影响因子:
4.5
作者:
Myers, Kenneth A.;Tint, Irina;Baas, Peter W.
通讯作者:
Baas, Peter W.