Genta Kawaguchi

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The endogenous tonB gene of Escherichia coli was used as a target for 9-aminoacridine-induced mutations that were identified in recA(-) and uvrA(-) cells. The cytotoxicity of 9-aminoacridine was enhanced in the uvrA and recA strains compared to the wild-type strain, and the mutagenicity of 9-aminoacridine in the uvrA and recA strains was similar to that in(More)
Simultaneous manipulation of both spin and charge is a crucial issue in magnetic conductors. We report on a strong correlation between magnetism and conductivity in the iodine-bonded molecular conductor (DIETSe)2 FeBr2 Cl2 [DIETSe=diiodo(ethylenedithio)tetraselenafulvalene], which is the first molecular conductor showing a large hysteresis in both magnetic(More)
Investigations were carried out to determine whether both DNA strands involved in Escherichia coli chromosomal DNA replication are replicated with similar accuracy. Experiments consisted of measuring the forward mutation rate from tonB(+) to tonB(-) in pairs of polA deficient strains in which the chromosomal target gene tonB was oriented in the two possible(More)
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