| Hauptseite > Publikationsdatenbank > Quantitative proteomics in plant protease substrate identification |
| Journal Article | FZJ-2018-03147 |
; ; ;
2018
Wiley-Blackwell
Oxford [u.a.]
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Please use a persistent id in citations: http://hdl.handle.net/2128/18683 doi:10.1111/nph.14587
Abstract: Proteolysis is a central regulatory mechanism of protein homeostasis and protein function that affects all aspects of plant life. Higher plants encode for hundreds of proteases, but their physiological substrates and hence their molecular functions remain mostly unknown. Current quantitative mass spectrometry‐based proteomics enables unbiased large‐scale interrogation of the proteome and its modifications. Here we provide an overview of proteomics techniques that allow profiling of changes in protein abundance, measurement of proteome turnover rates, identification of protease cleavage sites in vivo and in vitro and determination of protease sequence specificity. We discuss how these techniques can help to reveal protease substrates and determine plant protease function, illustrated by recent studies on selected plant proteases.
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