Shigeru Sugiyama

with Low-Distortion Cascode FET Mixer (2007)

A Ghz, Single-chip Rf, Shigeru Sugiyama, Noriharu Suematsu, Tadashi Takagi

SUMMARY We have demonstrated the single-chip RF front-end GaAs MMIC for the Japanese Personal Handy-phone System. It has a high efficiency HPA, a T/R switch, a LNA and a low-distortion down converter...

Structural characterization of supercoiled DNA containing a minisatellite repeat that has polypurine/polypyrimidine stretch (2007)

Kato, Mikio, Haku, Takeshi, Yamauchi, Takeshi, Sugiyama, Shigeru, Nagayama, Kuniaki, Shimizu, Nobuyoshi

The pUC19 derivative pAL79 contains six tandem repeats of a 30-bp unit sequence. Supercoiled pAL79 molecules show aberrant electrophoretic mobility under acidic conditions, and microscopic analysis...

Useful technique for DNA-stretching and fixation (2002)

Nakao, Hidenobu, Hayashi, Hideki, Yoshino, Tomoyuki, Sugiyama, Shigeru, Otobe, Kazunori, Ohtani, Toshio

Useful technique for DNA-stretching and fixation (2002)

Nakao, Hidenobu, Hayashi, Hideki, Yoshino, Tomoyuki, Sugiyama, Shigeru, Otobe, Kazunori, Ohtani, Toshio

We report on a useful technique for reproducibly straightening and fixing DNA molecules. When a droplet of DNA solution on surfaces is sucked up by pipet, surface tension at the moving air-water...

Simultaneous collection of topographic and fluorescent images of barley chromosomes by scanning near-field optical/atomic force microscopy (2002)

Yoshino, Tomoyuki, Sugiyama, Shigeru, Hagiwara, Shoji, Ushiki, Tatsuo, Ohtani, Toshio

The present study investigated the applicability of scanning near‐field optical/atomic force microscopy (SNOM/AFM) to observations of YOYO‐1 stained barley chromosomes. Using...

Oxidative Coupling and Partial Oxidation of Methane over Solid Catalysts in the Presence and Absence of Tetrachloromethane as a Gas-Phase Additive (1996)

Sugiyama, Shigeru, 杉山, 茂, スギヤマ, シゲル

Our recent studies on the oxidation of methane in the presence and absence of tetrachloromethane (TCM) over a variety of solid catalysts have been summarized together with those of the oxidation of...

Cycloaddition-Cycloreversion Sequence for One-pot Preparation of Dibenzobarrelene and Janusene Derivatives from Anthracenes and 2,3-Bis (methoxycarbonyl)-7-oxanorbornadiene (1988)

Tian, Guan Rong, Mori, Akira, Sugiyama, Shigeru, Takeshita, Hitoshi, 田, 官?, 森, 章, ...

Dibenzobarrelenes can be prepared by Diels-Alder reaction of anthracenes with 2,3-bis(methoxycarbonyl)-7-oxanorbornadiene followed by thermal cycloreversion in good yields; sterically-hindered...

Roles of the Respiratory Na+ Pump in Bioenergetics of Vibrio alginolyticus (1988)

Tokuda, Hajime, Asano, Makoto, Shimamura, Yoshiki, Unemoto, Tsutomu, Sugiyama, Shigeru, Imae, Yasuo

Bioenergetic characteristics of Na+ pump-defective mutants of a marine bacterium Vibrio alginolyticus were compared with those of the wild type and revertant. Generation of membrane potential and...

Inducible costimulator-dependent IL-10 production by regulatory T cells specific for self-antigen

Kohyama, Masako, Sugahara, Daisuke, Sugiyama, Shigeru, Yagita, Hideo, Okumura, Ko, Hozumi, Nobumichi

In this study, we investigated the relationship between the expression levels of self-antigen and the function of self-reactive T cells in the periphery. To this end, we used two rat insulin...

Dermatitis due to epiregulin deficiency and a critical role of epiregulin in immune-related responses of keratinocyte and macrophage

Shirasawa, Senji, Sugiyama, Shigeru, Baba, Iwai, Inokuchi, Junichi, Sekine, Sayaka, Ogino, Keiko, ...

Epidermal growth factor (EGF) family members, including epiregulin (EP), play a fundamental role in epithelial tissues; however, their roles in immune responses and the physiological role of EP...

Inducible costimulator-dependent IL-10 production by regulatory T cells specific for self-antigen

Kohyama, Masako, Sugahara, Daisuke, Sugiyama, Shigeru, Yagita, Hideo, Okumura, Ko, Hozumi, Nobumichi

In this study, we investigated the relationship between the expression levels of self-antigen and the function of self-reactive T cells in the periphery. To this end, we used two rat insulin...

Dermatitis due to epiregulin deficiency and a critical role of epiregulin in immune-related responses of keratinocyte and macrophage

Shirasawa, Senji, Sugiyama, Shigeru, Baba, Iwai, Inokuchi, Junichi, Sekine, Sayaka, Ogino, Keiko, ...

Epidermal growth factor (EGF) family members, including epiregulin (EP), play a fundamental role in epithelial tissues; however, their roles in immune responses and the physiological role of EP...

Crystallization of the archaeal transcription termination factor NusA: a significant decrease in twinning under microgravity conditions

Tanaka, Hiroaki, Umehara, Takashi, Inaka, Koji, Takahashi, Sachiko, Shibata, Rie, Bessho, Yoshitaka, ...

Crystallization of the transcription termination factor NusA under microgravity conditions significantly reduced the twinning content (1.0%) compared with terrestrially grown crystals (18.3%) and...

Structure of HIV-1 protease in complex with potent inhibitor KNI-272 determined by high-resolution X-ray and neutron crystallography

Adachi, Motoyasu, Ohhara, Takashi, Kurihara, Kazuo, Tamada, Taro, Honjo, Eijiro, Okazaki, Nobuo, ...

HIV-1 protease is a dimeric aspartic protease that plays an essential role in viral replication. To further understand the catalytic mechanism and inhibitor recognition of HIV-1 protease, we need to...

Preparation, crystallization and preliminary crystallographic analysis of old yellow enzyme from Trypanosoma cruzi

Sugiyama, Shigeru, Tokuoka, Keiji, Uchiyama, Nahoko, Okamoto, Naoki, Okano, Yousuke, Matsumura, Hiroyoshi, ...

Old yellow enzyme from Trypanosoma cruzi, has been crystallized using the hanging-drop vapour-diffusion method.