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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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p150(Glued), Dynein, and microtubules are specifically required for activation of MKK3/6 and p38 MAPKs.

To look for regulators of the mitogen-activated protein kinase (MAPK) kinase 6 (MKK6), a yeast two-hybrid screen was initiated using MKK6 as bait. p150(Glued) dynactin, a key component of the cytoplasmic dynein-dynactin motor complex, was found to specifically interact with MKK6 and its close homologue MKK3. Silencing of p150(Glued) expression by small interference RNA reduced the stimulus-induced phosphorylation of MKK3/6 and p38 MAPKs. The similar adverse effect was also seen when the cytoplasmic dynein motor was disrupted by other means. Like p150(Glued), MKK3/6 directly associate with microtubules. Disruption of microtubules prior to cell stimulation specifically inhibits the stimulus-induced phosphorylation of both MKK3/6 and p38 MAPKs. Our unexpected findings reveal a specific requirement for p150(Glued)/dynein/functional microtubules in activation of MKK3/6 and p38 MAPKs in vivo.[1]

References

  1. p150(Glued), Dynein, and microtubules are specifically required for activation of MKK3/6 and p38 MAPKs. Cheung, P.Y., Zhang, Y., Long, J., Lin, S., Zhang, M., Jiang, Y., Wu, Z. J. Biol. Chem. (2004) [Pubmed]
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