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Updated: May 9, 2026

Rapid In Vivo Fixation and Isolation of Translational Complexes from Eukaryotic Cells
Published on: December 25, 2021
The crystal structure of the eukaryotic 40S ribosomal subunit in complex with eIF1 and eIF1A
Melanie Weisser1, Felix Voigts-Hoffmann, Julius Rabl
1Institute of Molecular Biology and Biophysics, Swiss Federal Institute of Technology (ETH Zürich), Zürich, Switzerland.
Abstract:
Eukaryotic translation initiation factors (eIFs) 1A and 1 are central players in the complex process of start-codon recognition. To improve mechanistic understanding of this process, we determined the crystal structure of the 40S ribosomal subunit in complex with eIF1A and eIF1 from Tetrahymena thermophila at a resolution of 3.7 Å. It reveals the positions of the two factors on the 40S and the conformational changes that accompany their binding.
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