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Science 20 September 1996:
Vol. 273. no. 5282, pp. 1631 - 0
DOI:

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This Week in Science

Cells must transport proteins and RNAs into and out of the nucleus continuously in order to maintain essential functions. The nucleus is surrounded by a double membrane, the nuclear envelope, which is punctuated by pores through which import and export occurs. Panté and Abei (p. 1729) examined the way that proteins being imported into the nucleus interact with filaments that protrude from nuclear pores into the cytosol and how the filaments appear to usher incoming proteins toward the pore itself.




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