Michi Miura
   Department   Kawasaki Medical School  Kawasaki Medical School, Department of Microbiology,
   Position   Instructor
Article types 原著
Language English
Peer review Peer reviewed
Title Nucleotide-dependent behavior of single molecules of cytoplasmic dynein on microtubules in vitro.
Journal Formal name:FEBS letters
Abbreviation:FEBS Lett
ISSN code:18733468/00145793
Domestic / ForeginForegin
Volume, Issue, Page 584(11),pp.2351-5
Author and coauthor Miura Michi, Matsubara Aiko, Kobayashi Takuya, Edamatsu Masaki, Toyoshima Yoko Y
Authorship Lead author
Publication date 2010/06
Summary We visualized the nucleotide-dependent behavior of single molecules of mammalian native cytoplasmic dynein using fragments of dynactin p150 with or without its N-terminal microtubule binding domain. The results indicate that the binding affinity of dynein for microtubules is high in AMP-PNP, middle in ADP or no nucleotide, and low in ADP.Pi conditions. It is also demonstrated that the microtubule binding domain of dynactin p150 maintains the association of dynein with microtubules without altering the motile property of dynein in the weak binding state. In addition, we observed bidirectional movement of dynein in the presence of ATP as well as in ADP/Vi condition, suggesting that the bidirectional movement is driven by diffusion rather than active transport.
DOI 10.1016/j.febslet.2010.04.016
PMID 20394748