Soichi Wakatsuki

Design of Disulfide-linked Thioredoxin Dimers and Multimers Through Analysis of Crystal Contacts (2007)

Das, Mili, Kobayashi, Masanori, Yamada, Yusuke, Sreeramulu, Sridhar, Ramakrishnan, C, Wakatsuki, Soichi, ...

Disulfide bonds play an important role in protein stability and function. Here, we describe a general procedure for generating disulfide-linked dimers and multimers of proteins of known crystal...

Design of Disulfide-linked Thioredoxin Dimers and Multimers Through Analysis of Crystal Contacts (2007)

Das, Mili, Kobayashi, Masanori, Yamada, Yusuke, Sreeramulu, Sridhar, Ramakrishnan, C, Wakatsuki, Soichi, ...

Disulfide bonds play an important role in protein stability and function. Here, we describe a general procedure for generating disulfide-linked dimers and multimers of proteins of known crystal...

Crystal structure of troponin C in complex with troponin I fragment at 2.3-Å resolution

Vassylyev, Dmitry G., Takeda, Soichi, Wakatsuki, Soichi, Maeda, Kayo, Maéda, Yuichiro

Troponin (Tn), the complex of three subunits (TnC, TnI, and TnT), plays a key role in Ca2+-dependent regulation of muscle contraction. To elucidate the interactions between the Tn subunits and the...

Structure of the ectodomain of Drosophila peptidoglycan-recognition protein LCa suggests a molecular mechanism for pattern recognition

Chang, Chung-I, Ihara, Kentaro, Chelliah, Yogarany, Mengin-Lecreulx, Dominique, Wakatsuki, Soichi, Deisenhofer, Johann

The peptidoglycan-recognition protein LCa (PGRP-LCa) is a transmembrane receptor required for activation of the Drosophila immune deficiency pathway by monomeric Gram-negative peptidoglycan. We have...

Structural Basis of Transcription Inhibition by Antibiotic Streptolydigin

Temiakov, Dmitry, Zenkin, Nikolay, Vassylyeva, Marina N., Perederina, Anna, Tahirov, Tahir H., Kashkina, Ekaterina, ...

Streptolydigin (Stl) is a potent inhibitor of bacterial RNA polymerases (RNAPs). The 2.4 Å resolution structure of the Thermus thermophilus RNAP-Stl complex showed that, in full agreement with the...

Allosteric Modulation of the RNA Polymerase Catalytic Reaction Is an Essential Component of Transcription Control by Rifamycins

Artsimovitch, Irina, Vassylyeva, Marina N., Svetlov, Dmitri, Svetlov, Vladimir, Perederina, Anna, Igarashi, Noriyuki, ...

Rifamycins, the clinically important antibiotics, target bacterial RNA polymerase (RNAP). A proposed mechanism in which rifamycins sterically block the extension of nascent RNA beyond three...

Crystal structure of troponin C in complex with troponin I fragment at 2.3-Å resolution

Vassylyev, Dmitry G., Takeda, Soichi, Wakatsuki, Soichi, Maeda, Kayo, Maéda, Yuichiro

Troponin (Tn), the complex of three subunits (TnC, TnI, and TnT), plays a key role in Ca2+-dependent regulation of muscle contraction. To elucidate the interactions between the Tn subunits and the...

Structure of the ectodomain of Drosophila peptidoglycan-recognition protein LCa suggests a molecular mechanism for pattern recognition

Chang, Chung-I, Ihara, Kentaro, Chelliah, Yogarany, Mengin-Lecreulx, Dominique, Wakatsuki, Soichi, Deisenhofer, Johann

The peptidoglycan-recognition protein LCa (PGRP-LCa) is a transmembrane receptor required for activation of the Drosophila immune deficiency pathway by monomeric Gram-negative peptidoglycan. We have...

Structural basis for Rab11-dependent membrane recruitment of a family of Rab11-interacting protein 3 (FIP3)/Arfophilin-1

Shiba, Tomoo, Koga, Hiroshi, Shin, Hye-Won, Kawasaki, Masato, Kato, Ryuichi, Nakayama, Kazuhisa, ...

Family of Rab11-interacting protein (FIP)3/Arfophlin-1 and FIP4/Arfophilin-2 are dual effectors for Rab11 and ADP ribosylation factor (ARF)5/ARF6, which are involved in membrane delivery from...

Structural basis for specific lipid recognition by CERT responsible for nonvesicular trafficking of ceramide

Kudo, Norio, Kumagai, Keigo, Tomishige, Nario, Yamaji, Toshiyuki, Wakatsuki, Soichi, Nishijima, Masahiro, ...

In mammalian cells, ceramide is synthesized in the endoplasmic reticulum and transferred to the Golgi apparatus for conversion to sphingomyelin. Ceramide transport occurs in a nonvesicular manner and...

X-ray beam stabilization at BL-17A, the protein microcrystallography beamline of the Photon Factory

Igarashi, Noriyuki, Ikuta, Kazuyuki, Miyoshi, Toshinobu, Matsugaki, Naohiro, Yamada, Yusuke, Yousef, Mohammad S., ...

BL-17A is a new structural biology beamline at the Photon Factory, dedicated to protein crystallography of microcrystals. Here the X-ray beam stabilization techniques used at BL-17A are described.

Implementation of remote monitoring and diffraction evaluation systems at the Photon Factory macromolecular crystallography beamlines

Yamada, Yusuke, PHonda, Nobuo, Matsugaki, Naohiro, Igarashi, Noriyuki, Hiraki, Masahiko, Wakatsuki, Soichi

At the Photon Factory macromolecular crystallography beamlines, two new functions, remote monitoring and diffraction image evaluation, have been developed and installed on the beamline controlling...

Structural basis for tropomyosin overlap in thin (actin) filaments and the generation of a molecular swivel by troponin-T

Murakami, Kenji, Stewart, Murray, Nozawa, Kayo, Tomii, Kumiko, Kudou, Norio, Igarashi, Noriyuki, ...

Head-to-tail polymerization of tropomyosin is crucial for its actin binding, function in actin filament assembly, and the regulation of actin-myosin contraction. Here, we describe the 2.1 Å...