Distinct importin recognition properties of histones and chromatin assembly factors.
Synthesis of the protein components of nuclear chromatin occurs in the cytoplasm, necessitating specific import into the nucleus. Here, we report the binding affinities of the nuclear localisation sequence (NLS)-binding importin subunits for a range of histones and chromatin assembly factors. The results suggest that import of histones to the nucleus may be mediated predominantly by importin β1, whereas the import of the other components probably relies on the conventional α/β1 import pathway....[Show more]
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