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XB-ART-51080
FEBS Lett 2015 Sep 14;58919 Pt B:2763-8. doi: 10.1016/j.febslet.2015.07.038.
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Asymmetries in kinesin-2 and cytoplasmic dynein contributions to melanosome transport.

De Rossi MC , De Rossi ME , Sued M , Rodríguez D , Bruno L , Levi V .


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The mechanisms involved in bidirectional transport along microtubules remain largely unknown. We explored the collective action of kinesin-2 and dynein motors during transport of melanosomes in Xenopus laevis melanophores. These motors are attached to organelles through accessory proteins establishing a complex molecular linker. We determined both the stiffness of this linker and the organelles speed and observed that these parameters depended on the organelle size and cargo direction. Our results suggest that melanosome transport is driven by two dissimilar teams: whereas dynein motors compete with kinesin-2 affecting the properties of plus-end directed organelles, kinesin-2 does not seem to play a similar role during minus-end transport.

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Species referenced: Xenopus laevis
Genes referenced: dync1li1 klc1