ヒトの微タンパク質のリン酸化は,生物分子凝縮物の解離を促進する
Zhenkun Na1,2, Yang Luo1,2, Danica S Cui1
1Department of Chemistry, Yale University, New Haven, Connecticut 06520, United States.
Journal of the American Chemical Society
|August 4, 2021
まとめ
NBDYのような 新たに発見された微タンパク質は 細胞機能に不可欠です NBDYのリン酸化はP体ダイナミクスを調節し,液体-液体相分離を制御することによって細胞増殖に影響を与えます.
科学分野:
- 分子生物学
- バイオ物理学
- 細胞生物学
背景:
- プロテオゲノミクスは,これまで知られていなかった数千のマイクロタンパク質 (<100アミノ酸) を特定しました.
- 多くのマイクロタンパク質は 細胞の成長とマクロ分子複合体の調節に不可欠です
- しかし,NBDYのような本質的に乱れたものを含むほとんどのマイクロタンパク質の機能は,特徴づけられていないままです.
研究 の 目的:
- 本質的に乱れたマイクロタンパク質NBDYの生体物理的性質と細胞機能を調査する.
- P-ボディのダイナミクスを調節するNBDYの役割を決定する.
主な方法:
- 液体-液体相分離試験でRNAを用いる.
- 信号伝達と細胞分裂中のP体ダイナミクスを観察する細胞実験.
主要な成果:
- NBDYは,液体-液体相分離を in vitro で行います.
- NBDYリン酸化は,液相リミックス in vitroおよび細胞内のP体解離を誘導する.
- これらの効果は,成長因子シグナル伝達と細胞分裂の間に観察されました.
結論:
- NBDYのリン酸化は,細胞増殖中のP体ダイナミクスを調節するメカニズムである.
- 本質的に乱れたマイクロタンパク質は,液体-液体相分離と再混合を媒介し,細胞プロセスに影響を与える.
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