Journal
CURRENT OPINION IN CHEMICAL BIOLOGY
Volume 13, Issue 5-6, Pages 503-509Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.cbpa.2009.07.026
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Funding
- National Institute of Health [F32-AI077177-01, R01 GM081051]
- Hartwell Foundation
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Proteolysis is a key regulatory post-translational modification in diverse cellular processes including programed cell death, immune function, and development. Tracking proteolytic events has become a focus of researchers assessing the downstream consequences of protease activation. In this review we summarize unbiased methods for identifying protease substrates and tracking the extent of cleavage, a field termed 'degradomics'. These include one-dimensional and two-dimensional gel-based methods for identifying protease substrates, N-terminal peptide identification methods for simultaneously identifying substrates and cleavage sites, and approaches for the quantitation of cleavage events during endogenous proteolysis. Individual methods have identified more than 300 caspase-cleaved targets during apoptosis suggesting broad future applications for these technologies.
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