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Shotguns in the front line: phosphoproteomics in plants
Authors:Nakagami Hirofumi  Sugiyama Naoyuki  Ishihama Yasushi  Shirasu Ken
Affiliation:RIKEN Plant Science Center, Tsurumi-ku, Yokohama, Japan. hironakagami@psc.riken.jp
Abstract:The emergence of 'shotgun proteomics' has paved the way for high-throughput proteome analysis, by which thousands of proteins can be identified simultaneously from complex samples. Although the shotgun approach has the potential to monitor many different post-translational modifications, further technological development is needed to enrich each post-translational 'modificome'. Large-scale in vivo phosphorylation site mapping, so-called shotgun phosphoproteomics, has become feasible in various organisms, including plants, owing to recent technological breakthroughs. Shotgun phosphoproteomics is not a mature technology, but progress has been rapid. In this review, we highlight the scope and limitations of current methods, and some key technological issues in this field.
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