Akinori Suzuki

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The silkworm, Bombyx mori, is a very useful model species, especially in genetics, biochemistry, physiology, and molecular biology, helping researchers unravel the many mysteries involved in the insect life process. The present review describes our early contributions as chemists to the study of the molting and metamorphosis of B. mori. We also present(More)
Cystathionine gamma-synthase (CGS) catalyzes the first committed step of Met biosynthesis in plants. We have previously shown that expression of the gene for CGS is feedback-regulated at the level of mRNA stability, and that the amino acid sequence encoded by the first exon of the CGS gene itself is responsible for the regulation (Chiba, Y., Ishikawa, M.,(More)
Efficient plant breeding methods must be developed in order to increase yields and feed a growing world population, as well as to meet the demands of consumers with diverse preferences who require high-quality foods. We propose a strategy that integrates breeding simulations and phenotype prediction models using genomic information. The validity of this(More)
Allosamidin is a strong inhibitor of family 18 chitinases. We previously reported the presence of allosamidin-sensitive and -insensitive chitinases (chitinase S and IS) in the culture filtrate of the allosamidin-producing strain, Streptomyces sp. AJ9463. In this study, we cloned and sequenced the genes encoding the two chitinases, which clarified that(More)
Sexual aggregation involved in conjugative transfer of the Enterococcus faecalis plasmids pPD1 and pAD1 is enhanced by sex pheromones cPD1 and cAD1, respectively, which are excreted from recipient cells. PD78 (78 kDa) and AD74 (74 kDa) were detectable on the surface of donors harboring pPD1 and pAD1, respectively, at the time of cell aggregation. The(More)
A cDNA encoding a novel heptahelical receptor from the prothoracic glands of the silkworm, Bombyx mori was cloned and sequenced during screening of a prothoracicotropic hormone (PTTH) receptor. Orthologs of this receptor are found not only in insects, but also in the vertebrates. In B. mori, ubiquitous expression of the mRNA was observed in the larva. Also,(More)
In recent years, a lot of location estimation methods using wireless LAN signals have been proposed with the spread of wireless LANs. A location estimation by Fingerprint using Received Signal Strength Indicator (RSSI) is effective in terms of cost because it can be estimated by using existing infrastructures. However, it has a problem that the estimation(More)
The predominant structure of the N-glycan on the prothoracicotropic hormone (PTTH) isolated from 1.8 million adult heads of silkmoths was determined to be Manα1-6Manβ1-4GlcNAcβ1-4(Fucα1-6)GlcNAc-OH, which is identical to that of the baculovirus-expressed recombinant PTTH. An ecdysis progression assay demonstrated that N-glycosylated PTTH exhibited a(More)
Trehazolin (1) is a trehalase inhibitor produced by Micromonospora coriacea. Biosynthesis of 1 was studied by feeding experiments with a variety of labeled precursors. Feeding experiments with [1-13C]- and [6-13C]-D-glucose revealed that the carbon skeletons of both a glucose residue and a cyclopentane ring moiety in 1 were each derived from glucose, and(More)
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