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

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Differential expression and sequence-specific interaction of karyopherin alpha with nuclear localization sequences.

The process of nuclear protein transport requires the interaction of several different proteins, either directly or indirectly with nuclear localization or targeting sequences (NLS). Recently, a number of karyopherins alpha, or NLS-binding proteins, have been identified. We have found that the karyopherins hSRP1 and hSRP1alpha are differentially expressed in various leukocyte cell lines and could be induced in normal human peripheral blood lymphocytes. We show that the two karyopherins bind with varied specificities in a sequence specific manner to different NLSs and that the sequence specificity is modulated by other cytosolic proteins. There was a correlation between binding of karyopherins alpha to different NLSs and their ability to be imported into the nucleus. Taken together, these data provide evidence for multiple levels of control of the nuclear import process.[1]

References

  1. Differential expression and sequence-specific interaction of karyopherin alpha with nuclear localization sequences. Nadler, S.G., Tritschler, D., Haffar, O.K., Blake, J., Bruce, A.G., Cleaveland, J.S. J. Biol. Chem. (1997) [Pubmed]
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