論文

査読有り
2015年

Lever arm extension of myosin VI is unnecessary for the adjacent binding state.

Biophysics (Nagoya-shi, Japan)
  • Keigo Ikezaki
  • ,
  • Tomotaka Komori
  • ,
  • Yoshiyuki Arai
  • ,
  • Toshio Yanagida

11
開始ページ
47
終了ページ
53
記述言語
英語
掲載種別
DOI
10.2142/biophysics.11.47

Myosin VI is a processive myosin that has a unique stepping motion, which includes three kinds of steps: a large forward step, a small forward step and a backward step. Recently, we proposed the parallel lever arms model to explain the adjacent binding state, which is necessary for the unique motion. In this model, both lever arms are directed the same direction. However, experimental evidence has not refuted the possibility that the adjacent binding state emerges from myosin VI folding its lever arm extension (LAE). To clarify this issue, we constructed a myosin VI/V chimera that replaces the myosin VI LAE with the IQ3-6 domains of the myosin V lever arm, which cannot fold, and performed single molecule imaging. Our chimera showed the same stepping patterns as myosin VI, indicating the LAE is not responsible for the adjacent binding state.

リンク情報
DOI
https://doi.org/10.2142/biophysics.11.47
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/27493514
PubMed Central
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4736786
ID情報
  • DOI : 10.2142/biophysics.11.47
  • PubMed ID : 27493514
  • PubMed Central 記事ID : PMC4736786

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