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

AKAP350 modulates microtubule dynamics.

AKAP350 is a multiply spliced type II protein kinase A-anchoring protein that localizes to the centrosomes in most cells and the Golgi apparatus in epithelial cells. Multiple studies suggest that AKAP350 is involved in microtubule nucleation at the centrosome. Our previous studies demonstrated that AKAP350 was necessary for the maintenance of Golgi apparatus integrity. These data suggested that AKAP350 might be necessary for normal cytoskeletal interactions with the Golgi. To examine the relationship of AKAP350 with the microtubule cytoskeleton, we analyzed the effect of the depletion of AKAP350 on microtubule regrowth after nocodazole treatment in HeLa cells. The decrease in AKAP350 expression with short interfering RNA induced a delay in microtubule elongation with no effect on microtubule aster formation. In contrast, overexpression of the centrosomal targeting domain of AKAP350 elicited alterations in aster formation, but did not affect microtubule elongation. RNA interference for AKAP350 also induced an increase in cdc42 activity during microtubule regrowth. Our data suggest that AKAP350 has a role in the remodeling of the microtubule cytoskeleton.[1]

References

  1. AKAP350 modulates microtubule dynamics. Larocca, M.C., Jin, M., Goldenring, J.R. Eur. J. Cell Biol. (2006) [Pubmed]
 
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