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FEBS Lett. 2012 Jul 30;586(16):2251-9. doi: 10.1016/j.febslet.2012.05.053. Epub 2012 Jun 4.

A neuronal transmembrane protein LRFN4 complexes with 14-3-3s and NCK1 to induce morphological change in monocytic cells via Rac1-mediated actin cytoskeleton reorganization.

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  • 1Department of Medicinal and Life Science, Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan. s-konaka@rs.noda.tus.ac.jp

Abstract

We previously reported that leucine-rich repeat and fibronectin type III domain-containing 4 (LRFN4) functioned in migration and morphological change (i.e. cell elongation) of monocytic cells. Here, we examined a molecular mechanism regulating LRFN4-mediated cell elongation. We found that 14-3-3 and NCK proteins complexed with LRFN4, and they were involved in LRFN4-mediated cell elongation. We also identified the regions of LRFN4 interacting with NCK1 and 14-3-3s. Finally, we demonstrated that a Rac1 small GTPase was involved in LRFN4-mediated cell elongation. These results indicated that LRFN4 complexed with 14-3-3s and NCK1 to mediate elongation in monocytic cells via Rac-1-mediated actin cytoskeleton reorganization.

Copyright © 2012 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.

PMID:
22677168
[PubMed - indexed for MEDLINE]
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