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Cell Death Differ. 2000 Jan;7(1):10-6.

c-Abl: activation and nuclear targets.

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  • Department of Molecular Genetics, Weizmann Institute of Science, Rehovot 76100, Israel. yosef.shaul@weizmann.ac.il

Abstract

The c-Abl tyrosine kinase and its transforming variants have been implicated in tumorigenesis and in many important cellular processes. c-Abl is localized in the nucleus and the cytoplasm, where it plays distinct roles. The effects of c-Abl are mediated by multiple protein-protein and protein-DNA interactions and its tyrosine kinase domain. At the biochemical level, the mechanism of c-Abl kinase activation and the identification of its target proteins and cellular machineries have in part been solved. However, the phenotypic outcomes of these molecular events remained in large elusive. c-Abl has been shown to regulate the cell cycle and to induce under certain conditions cell growth arrest and apoptosis. In this respect the interaction of c-Abl with p53 and p73 has attracted particular attention. Recent findings have implicated c-Abl in an ionizing irradiation signaling pathway that elicits apoptosis. In this pathway p73 is an important immediate downstream effector. Here I review the current knowledge about these nuclear processes in which c-Abl is engaged and discuss some of their possible implications on cell physiology. Cell Death and Differentiation (2000) 7, 10 - 16.

PMID:
10713716
[PubMed - indexed for MEDLINE]
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