Takashi Fukami

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The crystal structure of chaperonin-60 from Paracoccus denitrificans (P.cpn60) has been determined at 3.2 A resolution by the molecular replacement method. Two heptameric rings of identical subunits of P.cpn60 in adjacent asymmetric units are stacked in a back-to-back manner and form a cylinder, as found in GroEL, cpn60 from Escherichia coli. With respect(More)
Doublecortin (DCX) is a microtubule-associated protein that is specifically expressed in neuronal cells. Genetic mutation of DCX causes lissencephaly disease. Although the abnormal cortical lamination in lissencephaly is thought to be attributable to neuronal cell migration defects, the regulatory mechanisms governing interactions between DCX and(More)
A model for the primary active transport by an ion pump protein is proposed. The model, the "energization-relaxation channel model," describes an ion pump as a multiion channel that undergoes stochastic transitions between two conformational states by external energy supply. When the potential profile along ion transport pathway is asymmetrical, a net ion(More)
The gene of V(1)-ATPase B subunit from the thermophilic eubacterium Thermus thermophilus has been cloned and the protein overproduced in Escherichia coli. The purified protein, with a molecular weight of 53.2 kDa, was crystallized from 10% (w/v) polyethylene glycol 1000, 120 mM magnesium chloride, and 100 mM Na-tricine, pH 8.0, by the vapor diffusion(More)
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