Frontiers Seminar: Measurement of charge and chemical bonding through cryo-EM and ED

22 November 2023

Please join us for a Frontiers in Microscopy Seminar on Wednesday, 22 November.  
Date/Time: Wednesday, 22 November 2023, 14:00 – 15:30 (AEST)
Title: Measurement of charge and chemical bonding through cryo-EM and ED  
Presenter: Professor. Koji Yonekura - RIKEN Spring-8 Tohoku University
Venue: AIBN Building 75, Level 1 Seminar Room


Using single-particle cryo-EM and three-dimensional electron diffraction (3D ED), we can explore 3D structural details in diverse samples from small organic compounds to large protein complexes. In this seminar, I will present our developments and results obtained using the 1st machine of a JEOL CRYO ARM 300 microscope. The topics will cover the measurement of charges and chemical bonding, AI-assisted data collection, and comparisons between 3D ED and serial crystallography with X-ray free electron lasers (XFELs).

Tea/coffee offered at the end of the session!

All welcome!

Some background information on the speaker:

Koji YONEKURA, Ph. D (Group Director / Professor)


1992: Graduated from Tokyo Institute of Technology
1997: Ph. D. from Graduate School of Biosciences, Tokyo Institute of Technology


1997:             Research Associate, International Institute for Advanced Research, Matsushita Electric Company
1997-2002:   Researcher; Group Leader of NanoSwitching Group, Protonic NanoMachine Project, ERATO, JST
2002-2005:   Assistant Professor, Graduate School of Frontier Biosciences, Osaka University
2004-2008:   Keck Fellow, The W. M. Keck Advanced Microscopy Laboratory, Department of Biochemistry & Biophysics, University of California, San Francisco
2008:            Associate Chief Scientist; Chief Scientist; Group Director, Biostructural Mechanism Laboratory, RIKEN SPring-8 Center
2018 - 2023: Unit Leader, Advanced Electron Microscope Development Unit, RIKEN-JEOL Collaboration Center, RIKEN Baton Zone Program
2020:            Professor, Institute of Multidisciplinary Research for Advanced Materials (IMRAM) Tohoku University


2004:   Keck Fellow, The W. M. Keck Advanced Microscopy Laboratory
2009:   The Ernst Ruska Prize of the German Society for Electron Microscopy


2010:   Member of the specialty committee, The Biophysical Society of Japan
2009-2012: Member of the younger generation subcommittee, The Japanese Society of Microscopy