继杰 柴;Chunying Du;Jia Wei Wu;Saw Kyin;Xiaodong Wang;一公 施
Princeton University;University of Texas Southwestern Medical Center
发表时间:2000-8-24
期 刊:Nature
语 言:English
U R L: http://www.scopus.com/inward/record.url?scp=0034710649&partnerID=8YFLogxK
Apoptosis (programmed cell death), an essential process in the development and homeostasis of metazoans, is carried out by caspases. The mitochondrial protein Smac/DIABLO performs a critical function in apoptosis by eliminating the inhibitory effect of IAPs (inhibitor of apoptosis proteins) on caspases. Here we show that Smac/DlABLO promotes not only the proteolytic activation of procaspase-3 but also the enzymatic activity of mature caspase-3, both of which depend upon in ability to intertact physically with IAPs. The crystal structure of Smac/DIABLO at 2.2 A resolution reveals that it homodimerizes through an expensive hydrophobic interface. Missense mutations inactivating this dimeric interface significantly compromise the function of Smac/DIABLO. As in the Drosophila proteins Reaper, Grim and Hid, the amino-terminal amino acids of Smac/DIABLO are indispensable for its function, and a seven-residue peptide derived from the amino terminus promotes procaspase-3 activation in vitro. These results establish an evolutionarily conserved structural and biochemical basis for the activation of apoptosis by Smac/DIABLO.
Scopus度量
年份 | CiteScore | SJR | SNIP |
---|---|---|---|
1996 | |||
1997 | |||
1998 | |||
1999 | 15.599 | 7.187 | |
2000 | 11.917 | 6.857 | |
2001 | 9.874 | 6.767 | |
2002 | 10.114 | 7.184 | |
2003 | 11.384 | 7.492 | |
2004 | 11.222 | 7.538 | |
2005 | 10.333 | 7.199 | |
2006 | 9.702 | 7.156 | |
2007 | 10.344 | 7.097 | |
2008 | 13.17 | 7.307 | |
2009 | 15.185 | 8.234 | |
2010 | 16.465 | 8.204 | |
2011 | 53.1 | 17.598 | 8.667 |
2012 | 51 | 17.546 | 8.409 |
2013 | 50.9 | 19.69 | 8.511 |
2014 | 49.9 | 18.78 | 7.918 |
2015 | 51.6 | 19.669 | 8.08 |
2016 | 49.2 | 18.389 | 7.901 |
2017 | 53.7 | 17.875 | 8.679 |
2018 | 55.7 | 16.345 | 9.448 |
2019 | 51 | 14.047 | 8.546 |
2020 | 56.9 | 15.993 | 9.249 |
2021 | 56 |
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