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Biophysical Chemistry Lab
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A physical chemistry lab that observes structural changes in proteins using time-resolved spectroscopy.
AboutAbout the lab
Taking on the mysteries of proteins.
The Biophysical Chemistry Lab observes changes in molecular structure as proteins function, in order to clarify how their functions arise.
Using time-resolved spectroscopy, the lab investigates the diverse motions of proteins, spanning picoseconds to milliseconds.
The lab is also developing new spectroscopic methods and instruments.
The lab's website introduces it under the name "Mizutani Lab."
Key terms
- Time-resolved spectroscopy
- A spectroscopic method for obtaining information on the structure and electronic state of molecules that change moment by moment.
- Allosteric protein
- A protein, typified by hemoglobin, that functions by changing its higher-order structure.
- Artificial protein
- A protein designed on the basis of an understanding of mechanisms, with functions not found in nature.
NewsLab news
A paper first-authored by a master's student was published in J. Phys. Chem. B
A paper first-authored by Lecturer Haruto Ishikawa was published in ACS Omega
A paper first-authored by a graduate of the lab was published in J. Chem. Phys.
A doctoral student received the Excellent Presentation Award and the Excellent Poster Award at the 19th Symposium on Molecular Science
A paper first-authored by a graduate of the lab was published in J. Phys. Chem. C
ResearchResearch themes
The lab aims to observe in as much detail as possible the changes in molecular structure that occur when proteins function, and to clarify how their functions arise. Besides studying protein motion with time-resolved spectroscopy, the lab develops new spectroscopic instruments and creates artificial proteins based on an understanding of these mechanisms.
*Illustrative imageStructural Chemistry of Allosteric Proteins
Targeting proteins such as gas transporters, photosensors, and light-driven ion transporters, the lab examines how local structural changes propagate to changes in higher-order structure, and studies the relationship between structural change and the expression of function.
*Illustrative imageFunctional Design of Proteins
Based on an understanding of mechanisms, the lab designs proteins and creates artificial proteins with new functions. Projects include enzymes whose activity is controlled by electrons, light, or small molecules, and protein molecular heaters.
*Illustrative imagePioneering Time-Resolved Spectroscopy
From molecules that change moment by moment, vibrational spectra give structural information at the level of chemical bonds, and absorption and fluorescence spectra give information on electronic structure. To take advantage of these features, the lab develops new spectroscopic instruments.
MembersFaculty
The members of the Biophysical Chemistry Lab are faculty, administrative assistants, and doctoral, master's, and undergraduate students.As of 2026
- ProfessorYasuhisa Mizutani
- LecturerHaruto Ishikawa
- Assistant ProfessorTaito Urui
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “AP5M1 3D Protein Structure” Tobithias / CC BY-SA 4.0 (cropped)
- Structural Chemistry of Allosteric Proteins: “Hemoglobin-model-large-1” RFZYNSPY / CC0 (cropped)
- Functional Design of Proteins: “Protein design” Vara104 / CC BY-SA 4.0 (cropped)
- Pioneering Time-Resolved Spectroscopy: “Tip-Enhanced Raman Spectroscopy” Tobia0606 / CC BY-SA 4.0 (cropped)
- Related lab (Organic and Biological Chemistry Lab): “Structural model of SARS-CoV-2 infection - Oo 422117” Victor Padilla-Sanchez / CC BY 4.0 (cropped)
- Related lab (Adsorption Chemistry Lab): “Bruker 600 Mhz NMR Spectrometer” SiriusHT / CC BY-SA 4.0 (cropped)
- Related lab (Analytical Chemistry Lab): “Working in analytical chemistry 5” Martin Schaier / CC BY 4.0 (cropped)
- Related lab (Polymer Structural Science Lab): “Caulobacter crescentus CcrM” Jcaceresvergara / CC BY-SA 4.0 (cropped)
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