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Caspase-2 cleaves DNA fragmentation factor (DFF45)/inhibitor of caspase-activated DNase (ICAD)
被引:15
|作者:
Dahal, Giri Raj
Karki, Pratap
Thapa, Arjun
ShahnawaZ, Mohammad
Shin, Song Yub
Lee, Jung Sup
Cho, Byungyun
Park, Il-Seon
机构:
[1] Chosun Univ, Res Ctr Proteineous Mat, Dept Biomat Engn, Kwangju 501759, South Korea
[2] Chosun Univ, Sch Med, Dept Cellular & Mol Med, Kwangju 501759, South Korea
[3] Chosun Univ, Coll Nat Sci, Dept Biotechnol, Kwangju 501759, South Korea
[4] Yonsei Univ, Dept Chem, Wonju, South Korea
基金:
欧洲研究理事会;
新加坡国家研究基金会;
关键词:
caspase-2;
Tat;
apoptosis;
DNA fragmentation factor;
D O I:
10.1016/j.abb.2007.09.007
中图分类号:
Q5 [生物化学];
Q7 [分子生物学];
学科分类号:
071010 ;
081704 ;
摘要:
To investigate the signal transduction pathway of caspase-2, cell permeable Tat-reverse-caspase-2 was constructed, characterized and utilized for biochemical and cellular studies. It could induce the cell death as early as 2 h, and caspase-2-specific VDVADase activity but not other caspase activities including DEVDase and IETDase. Interestingly, nuclear DNA fragmentation occurred and consistently DNA fragmentation factor (DFF45)/Inhibitor of caspase-activated DNase (ICAD) was cleaved inside the cell as well as in vitro, suggesting a role of caspase-2 in nuclear DNA fragmentation. (C) 2007 Elsevier Inc. All rights reserved.
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页码:134 / 139
页数:6
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