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

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The importance of exportin and Ran for nucleocytoplasmic shuttling of the ecdysteroid receptor.

Nuclear localization of the ecdysteroid receptor (EcR) is increased in HeLa cells if exportin-1 (CRM1), a predominant carrier for export of proteins and RNA from the nucleus into the cytoplasm, is knocked down by siRNA against exportin. However, knockdown of the small G protein Ran, which is essential for nuclear transport, leads to an arrest of EcR in the cytoplasm, but does not prevent efficient nuclear import of the most important heterodimerization partner of EcR, ultraspiracle (Usp). Like in vertebrate cells, EcR is also distributed heterogeneously in Drosophila melanogaster S2 cells but shifted exclusively to the nucleus, if Usp is present.[1]

References

  1. The importance of exportin and Ran for nucleocytoplasmic shuttling of the ecdysteroid receptor. Betanska, K., Hönl, C., Spindler-Barth, M., Spindler, K.D. Arch. Insect Biochem. Physiol. (2011) [Pubmed]
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