Direct association of LIS1, the lissencephaly gene product, with a mammalian homologue of a fungal nuclear distribution protein, rNUDE
Open Access
- 7 August 2000
- journal article
- Published by Wiley in FEBS Letters
- Vol. 479 (1-2) , 57-62
- https://doi.org/10.1016/s0014-5793(00)01856-1
Abstract
LIS1 is a product of the causative gene for type I lissencephaly characterized by a smooth brain surface due to a defect in neuronal migration during brain development and a regulatory subunit of platelet‐activating factor acetylhydrolase (PAF‐AH). It is also a mammalian homologue of the fungal nuclear distribution (nud) gene, nudF, which controls the migration of fungal nuclei. Using the two‐hybrid system, we identified a novel LIS1‐interacting protein, rat NUDE (rNUDE), and found that it is a mammalian homologue of another fungal nud gene product, NUDE, and Xenopus mitotic phosphoprotein 43 which is phosphorylated in a cell cycle‐dependent manner. rNUDE and the catalytic subunits of PAF‐AH interact with the N‐ and C‐termini of LIS1, respectively. However, these proteins, instead of simultaneously binding to LIS1, appeared to bind to LIS1 in a competitive manner. These results suggest that LIS1 functions in nuclear migration by interacting with multiple intracellular proteins in mammals.Keywords
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