2 publications

2 publications

Construction of Robust Bio-Nanotubes using the Controlled Self-Assembly of Component Proteins of Bacteriophage T4

Ueno, T.

Small 2010, 6, 1873-1879, 10.1002/smll.201000772

The synthesis of a robust bio‐nanotube consisting of the β‐helical tubular component proteins of bacteriophage T4 is described. The crystal structure indicates that it has a well‐defined nanoscale length of 10 nm as a result of the head‐to‐head dimerization of β‐helices. Surprisingly, the tube assembly has high thermal stability, high tolerance to organic solvents, and a wide pH‐stability range.


Metal: Cu
Ligand type: Flavin
Host protein: [(gp5βf)3]2
Anchoring strategy: Lysine-succinimide
Optimization: ---
Reaction: Cycloaddition
Max TON: ---
ee: ---
PDB: ---
Notes: ---

Molecular Design of Heteroprotein Assemblies Providing a Bionanocup as a Chemical Reactor

Ueno, T.; Watanabe, Y.

Small 2008, 4, 50-54, 10.1002/smll.200700855

A bionanocup chemical reactor is constructed from a heteroprotein assembly from bacteriophage T4. The preparation of a stable iron(III) porphyrin–bionanocup composite is described. The hydrophobic cup provides a space suitable for the fixation of low‐water‐solubility iron(III) porphyrins. The application of the iron(III) porphyrin–bionanocup composites for the catalysis of sulfoxidation of thioanisoles is demonstrated (see figure).


Metal: Fe
Host protein: (gp27-gp5)3
Anchoring strategy: Cystein-maleimide
Optimization: ---
Max TON: ---
ee: ---
PDB: ---
Notes: ---