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Updated: May 29, 2026

In Vitro Reassociation Assay to Measure the Formation of 80S Ribosomal Particles Using Salt-washed Ribosomal Subunits
Published on: December 16, 2025
A vestige of a prebiotic bonding machine is functioning within the contemporary ribosome
Miri Krupkin1, Donna Matzov, Hua Tang
1Weizmann Institute of Science, Rehovot 76100, Israel.
Abstract:
Based on the presumed capability of a prebiotic pocket-like entity to accommodate substrates whose stereochemistry enables the creation of chemical bonds, it is suggested that a universal symmetrical region identified within all contemporary ribosomes originated from an entity that we term the 'proto-ribosome'. This 'proto-ribosome' could have evolved from an earlier machine that was capable of performing essential tasks in the RNA world, called here the 'pre-proto-ribosome', which was adapted for producing proteins.
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