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Related Experiment Video

Updated: Jul 19, 2026

Isolation of Translating Ribosomes Containing Peptidyl-tRNAs for Functional and Structural Analyses

Isolation of Translating Ribosomes Containing Peptidyl-tRNAs for Functional and Structural Analyses

Published on: February 25, 2011

Ribosome-inactivation display system.

Satoshi Fujita¹, Jing-Min Zhou, Kazunari Taira

¹Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, Japan.

Methods in Molecular Biology (Clifton, N.J.)

|October 17, 2006

Summary

This study introduces a new in vitro method to link protein function to genetic code. It enables the selection of functional proteins using a novel ribosome-inactivation display system.

Area of Science:

Molecular Biology
Protein Engineering
Biotechnology

Background:

Connecting genotype to phenotype is crucial for protein engineering.
Existing methods for in vitro protein evolution can be complex and may lead to loss of population diversity.

Purpose of the Study:

To develop a novel, simplified in vitro system for selecting functional proteins.
To establish a method for linking protein phenotype directly to genotype without genetic manipulation.

Main Methods:

A stable complex of ribosome, messenger RNA, and protein was formed during translation using the ricin A chain.
This complex was generated without removing the termination codon, avoiding transfection, chemical synthesis, or ligation.

Main Results:

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RIBO-seq in Bacteria: a Sample Collection and Library Preparation Protocol for NGS Sequencing

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The developed system successfully creates a stable complex of translation machinery and protein.
The method functions without requiring the removal of the termination codon, simplifying the process.

Conclusions:

The novel ribosome-inactivation display system offers a robust and simple method for in vitro protein evolution.
This system allows for the selection of proteins with desired properties in a predictable manner without population loss.