Skip to content
Fellows Directory

Kiyoshi Nagai

Professor Kiyoshi Nagai FRS


Elected: 2000


Kiyoshi Nagai is a structural biologist who studies the complex molecular machine known as the spliceosome. In eukaryotic cells, the protein-coding sequences of most genes are interrupted by noncoding segments called introns. After introns are removed from precursor messenger RNAs (mRNAs), the flanking coding segments — exons — are spliced together to form mature mRNAs by the spliceosome.

If this splicing process fails, diseases can result. Kiyoshi is combining X-ray crystallography and electron cryomicroscopy (cryoEM) with biochemical and genetic techniques in an effort to increase our knowledge of this critical process in eukaryotic gene expression.

Professional positions

Fellow, Darwin College, University of Cambridge


Crystallography, Electron cryo-microscopy, RNA processing, Spliceosomes