Author

Takafumi Kawai

Ehime UniversityORCID 0000-0001-6632-5551Unclaimed ORCID profile · follow to get notified of new preprints

Biology Disciplines

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Biophysics· 1 Neuroscience· 1 Physiology· 1

Signature Assays, Organisms & Methods

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Approach:experimental assay· 3 Organism:mouse· 3 Research Focus:cell signaling & trafficking· 2 Assay:electrophysiology· 2 Approach:mechanistic / dynamical model· 1 Approach:statistical model· 1

Frequent Co-Authors

Yasushi OkamuraiD· 3 shared Rizki Tsari AndrianiiD· 2 shared Daisuke YoshiokaiD· 1 shared Haruhiko MiyataiD· 1 shared Junxian Zhou· 1 shared Kenji SakimuraiD· 1 shared Kohei YamamotoiD· 1 shared Lei HuangiD· 1 shared

Activity by Year

2024-2026 · peak 2/yr

Co-Author Collaboration Network

10 top collaborators · 23 mutual co-author links

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3 shared papersNeuroscience

Yasushi OkamuraORCID

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3 papers

Recent·Most cited

NeurosciencebioRxivPreprintSep 15, 2026

Asymmetric turnover dynamics of Nav1.6 voltage-gated sodium channels at the axon initial segment

Daisuke Yoshioka, Kohei Yamamoto, Lei Huang…·Yasushi Okamura

The paper uses a genetically engineered mouse to study Nav1.6 sodium channel turnover dynamics at the axon initial segment, revealing spatially asymmetric turnover and its role in AIS quality control.

DOI 10.64898/2026.09.10.747750

mouseexperimental assay

𝕏 PostBluesky

BiophysicsbioRxivPreprintApr 8, 2026

PI(4,5)P2-dependence of GABAA receptor channel function revealed by optogenetic manipulation of a binding site

Risa Mori-Kreiner, Rizki Tsari Andriani, Tobias Strasdeit…·Yasushi Okamura

This study reveals that PI(4,5)P2 binding to GABAARs at K311 is functionally significant, as shown through optogenetic manipulation and electrophysiology.

DOI 10.64898/2026.04.06.715776

mouseelectrophysiology

𝕏 PostBluesky

PhysiologybioRxivDec 12, 2024

Zinc is a Key Regulator of the Sperm-Specific K+ Channel (Slo3) Function

Rizki Tsari Andriani, Tanadet Pipatpolkai, Haruhiko Miyata…·Takafumi Kawai

This study shows that intracellular zinc dynamically regulates the Slo3 potassium channel in mouse spermatozoa during capacitation, inhibiting currents and mediating alkalinization-induced hyperpolarization.

DOI 10.7554/elife.105450

mouseelectrophysiology

𝕏 PostBluesky