Kinase-interacting substrate screening is a novel method to identify kinase substrates

Mutsuki Amano, Tomonari Hamaguchi, Md Hasanuzzaman Shohag, Kei Kozawa, Katsuhiro Kato, Xinjian Zhang, Yoshimitsu Yura, Yoshiharu Matsuura, Chikako Kataoka, Tomoki Nishioka, Kozo Kaibuchi

研究成果: Article査読

43 被引用数 (Scopus)

抄録

Protein kinases play pivotal roles in numerous cellular functions; however, the specific substrates of each protein kinase have not been fully elucidated. We have developed a novel method called kinase-interacting substrate screening (KISS). Using this method, 356 phosphorylation sites of 140 proteins were identified as candidate substrates for Rho-associated kinase (Rho-kinase/ROCK2), including known substrates. The KISS method was also applied to additional kinases, including PKA, MAPK1, CDK5, CaMK1, PAK7, PKN, LYN, and FYN, and a lot of candidate substrates and their phosphorylation sites were determined, most of which have not been reported previously. Among the candidate substrates for Rho-kinase, several functional clusters were identified, including the polarity-associated proteins, such as Scrib. We found that Scrib plays a crucial role in the regulation of subcellular contractility by assembling into a ternary complex with Rho-kinase and Shroom2 in a phosphorylation-dependent manner. We propose that the KISS method is a comprehensive and useful substrate screen for various kinases.

本文言語English
ページ(範囲)895-912
ページ数18
ジャーナルJournal of Cell Biology
209
6
DOI
出版ステータスPublished - 2015
外部発表はい

All Science Journal Classification (ASJC) codes

  • 細胞生物学

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