1. A Polysaccharide-Based Container
Angew. Chem. Int. Ed., 2010, 49,
A Polysaccharide-Based Container
Transportation System Powered by Molecular Motors
Y. Tsuchiya, T. Komori, M. Hirano,T. Shiraki, A. Kakugo, T. Ide, J.-P. Gong, S. Yamada, T. Yanagida, S. Shinkai*
Nanotechnology Laboratory, Institute of Systems, ISIT,
Research Group for Molecular-informational Life Science, RIKEN,
Graduate School of Frontier Biosciences, Osaka University,
Division of Life Sciences, Faculty of Science, Hokkaido University,
Department of Chemistry and Biochemistry, Kyushu University,
Department of Nanoscience, Faculty of Engineering, Sojo University

2. Cargo Transportation Systems Powered by Artificial Nanomortor
(Catalytic Motor)
Power ; Local catalytic decomposition of H2O2
A. Sen et al., Nano Lett., 2008, 8, 1271.
(Electrically-driven Motor)
Power ; Electrical current induced thermal gradient
Have attracted increasing interest
A. Bachtold et al., Science, 2008, 320, 775.

3. Cargo Transportation Systems Powered by Motor Protein
(Light-controlled Molecular Shuttle)
V. Vogel et al., Nano Lett., 2001, 1, 235.
(DNA Transport and Manipulation System)
Have attracted increasing interest
J. Howard et al., Nano Lett., 2003, 3, 1251.

4. Cargo Transportation Systems Powered by Motor Protein
(Light-controlled Molecular Shuttle)
These systems can be applied only to the delivery of certain types of cargo
V. Vogel et al., Nano Lett., 2001, 1, 235.
(DNA Transport and Manipulation System)
Have attracted increasing interest
J. Howard et al., Nano Lett., 2003, 3, 1251.

5. S. Shinkai, et al., Chem. Commun., 2005, 4383.
Polysaccharide
Tour’s interest
S. Shinkai, et al., Chem. Commun., 2005, 4383.

6. Myosin-VI-His6/Co/TPySPG/SWNT Complex
Tour’s interest

7. Movement of a Polysaccharide-based Container
Histograms of velocity (moving speed)
(Native)
(Complex System)
<n = 890>
<n = 300>
Tour’s interest ↓
0.110 ± mm/s ↓
0.095 ± mm/s
similar function
2 mm
mean run length ~ 5 mm
↔ mm (dimerized myosin-VI)

8. Translational Motion of Complex Container
“Landing” Motion
“Filament Switch” Motion
see Movie
Tour’s interest
2 mm

9. Conclusions
Authors have presented a novel cargo transportation system that uses a polysaccharide as the container.
Polysaccharide (b-1,3-glucan) act as a host compound to various nanomaterial cargoes such as SWNT, DNA, gold- nanoparticle, and so on.
Therefore, author’s results suggest that various nanomaterials complexed with b-1,3-glucans can be transported by this actomyosin-polysaccharide container transportation system.
Tour’s interest