Neurofilament heavy chain side arm phosphorylation regulates axonal transport of neurofilaments.
Neurofilament heavy chain side arm phosphorylation regulates axonal transport of neurofilaments.
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DOI:
10.1083/jcb.200303138
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发表时间:
2003-05-12
期刊:
影响因子:
--
通讯作者:
Miller CC
中科院分区:
文献类型:
--
作者:
Ackerley S;Thornhill P;Grierson AJ;Brownlees J;Anderton BH;Leigh PN;Shaw CE;Miller CC
Neurofilaments possess side arms that comprise the carboxy-terminal domains of neurofilament middle and heavy chains (NFM and NFH); that of NFH is heavily phosphorylated in axons. Here, we demonstrate that phosphorylation of NFH side arms is a mechanism for regulating transport of neurofilaments through axons. Mutants in which known NFH phosphorylation sites were mutated to preclude phosphorylation or mimic permanent phosphorylation display altered rates of transport in a bulk transport assay. Similarly, application of roscovitine, an inhibitor of the NFH side arm kinase Cdk5/p35, accelerates neurofilament transport. Analyses of neurofilament movement in transfected living neurons demonstrated that a mutant mimicking permanent phosphorylation spent a higher proportion of time pausing than one that could not be phosphorylated. Thus, phosphorylation of NFH slows neurofilament transport, and this is due to increased pausing in neurofilament movement.
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DOI:
10.1083/jcb.151.5.1013
发表时间:
2000-11-27
期刊:
The Journal of cell biology
影响因子:
--
作者:
Sánchez I;Hassinger L;Sihag RK;Cleveland DW;Mohan P;Nixon RA
通讯作者:
Nixon RA
影响因子:
7.8
作者:
Rao, MV;Garcia, ML;Cleveland, DW
通讯作者:
Cleveland, DW
影响因子:
2.9
作者:
Eidenmüller, J;Fath, T;Brandt, R
通讯作者:
Brandt, R
影响因子:
64.5
作者:
DEWAEGH, SM;LEE, VMY;BRADY, ST
通讯作者:
BRADY, ST
影响因子:
5.3
作者:
Roy, S;Coffee, P;Black, MM
通讯作者:
Black, MM