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Biochem Pharmacol. 2008 Dec 1;76(11):1490-502. doi: 10.1016/j.bcp.2008.07.039. Epub 2008 Aug 9.

Molecular mechanism of L-DNase II activation and function as a molecular switch in apoptosis.

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1
Centre de Recherches des Cordeliers, INSERM, U872, Paris F-75006, France. alicia.torriglia@idf.inserm.fr

Abstract

The discovery of caspase activation counts as one of the most important finds in the biochemistry of apoptosis. However, targeted disruption of caspases does not impair every type of apoptosis. Other proteases can replace caspases and several so called "caspase independent" pathways are now described. Here we review our current knowledge on one of these pathways, the LEI/L-DNase II. It is a serine protease-dependent pathway and its key event is the transformation of LEI (leukocyte elastase inhibitor, a serine protease inhibitor) into L-DNase II (an endonuclease). The molecular events leading to this change of enzymatic function as well as the cross-talk and interactions of this molecule with other apoptotic pathway, including caspases, are discussed.

PMID:
18761000
DOI:
10.1016/j.bcp.2008.07.039
[Indexed for MEDLINE]
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