H
Hidemasa Motoshima
Researcher at University of Tokyo
Publications - 33
Citations - 530
Hidemasa Motoshima is an academic researcher from University of Tokyo. The author has contributed to research in topics: Aminopeptidase & Gene. The author has an hindex of 11, co-authored 31 publications receiving 487 citations.
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Journal ArticleDOI
Trimeric crystal structure of the glycoside hydrolase family 42 β-galactosidase from Thermus thermophilus A4 and the structure of its complex with galactose
Masafumi Hidaka,Shinya Fushinobu,Naomi Ohtsu,Hidemasa Motoshima,Hiroshi Matsuzawa,Hirofumi Shoun,Takayoshi Wakagi +6 more
TL;DR: Structural comparison with other glycoside hydrolases revealed that many features of the 4/7 superfamily are conserved in the A4-beta-Gal structure, and, Interestingly, the active site was similar with those of retaining enzymes, but the overall fold of the TIM barrel domain was very similar to that of an inverting enzyme, beta-amylase.
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Thermostable β-Galactosidase from an Extreme Thermophile, Thermus sp. A4: Enzyme Purification and Characterization, and Gene Cloning and Sequencing
TL;DR: The purified and characterized a thermophilic beta-galactosidase from Thermus sp.
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Effects of carbohydrate source on physicochemical properties of the exopolysaccharide produced by Lactobacillus fermentum TDS030603 in a chemically defined medium
Kenji Fukuda,Tala Shi,Kentaro Nagami,Fiame Leo,Tadashi Nakamura,Kumi Yasuda,Akitsugu Senda,Hidemasa Motoshima,Tadasu Urashima +8 more
TL;DR: In this article, a thermophilic lactic acid bacterium, Lactobacillus fermentum TDS030603, produced about 100mg/L of EPS in purified form when grew in de Man-Rogosa-Sharpe (MRS) broth.
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Screening for the Immunopotentiating Activity of Food Microorganisms and Enhancement of the Immune Response by Bifidobacterium adolescentis M101-4
Jonghwa Lee,Akio Ametani,Atsushi Enomoto,Yumi Sato,Hidemasa Motoshima,Fumio Ike,Shuichi Kaminogawa +6 more
TL;DR: Results suggest that the activation with B. adolescentis M101-4 was not due to any secondary stimulation of lymphocytes primed with bacteria in the gut or environment, but to direct or indirect activity toward B cells that was intrinsic to the strain.
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Microbiota of 'airag', 'tarag' and other kinds of fermented dairy products from nomad in Mongolia
TL;DR: Randomly amplified polymorphic DNA (RAPD) analysis showed that there were diversity in each L. helveticus family and products, and there were common strains found in airag and tarag in the same family.