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Related Experiment Video

Updated: Jun 15, 2026

Protein Engineering by Yeast Surface Display

Protein Engineering by Yeast Surface Display

Published on: November 29, 2024

Ribosome display with the PURE technology.

Takuya Ueda¹, Takashi Kanamori, Hiroyuki Ohashi

¹The Department of Medical Genome Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba, Japan.

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

|March 6, 2010

Summary

This summary is machine-generated.

This study enhances ribosome display by using the Protein synthesis Using Recombinant Elements (PURE) system, improving the stability of mRNA-ribosome-polypeptide complexes for reliable genotype-phenotype linkage in cell-free systems.

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Protein Engineering by Yeast Surface Display

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Published on: June 23, 2021

Area of Science:

Biotechnology
Molecular Biology
Synthetic Biology

Background:

Ribosome display links genotype (mRNA) to phenotype (polypeptide) via mRNA-ribosome-polypeptide ternary complexes.
Cell-extract based cell-free systems contain nucleases that destabilize these complexes, hindering reliable results.

Purpose of the Study:

To develop a more stable and controllable ribosome display system.
To improve the reliability of genotype-phenotype linkage in cell-free protein synthesis.

Main Methods:

Utilized the Protein synthesis Using Recombinant Elements (PURE) system for cell-free protein synthesis.
Modified the PURE system by omitting release factors to stall ribosomes.
Assessed the stability of the mRNA-ribosome-polypeptide ternary complex.

Main Results:

The PURE system demonstrated high stability of the mRNA-ribosome-polypeptide ternary complex.
Nuclease activity and inhibitory factors were significantly reduced in the PURE system.
Omission of release factors facilitated ribosome stalling at termination codons, enhancing complex formation.

Conclusions:

The modified PURE system provides a highly stable and controllable platform for ribosome display.
This approach overcomes limitations of traditional cell-extract based systems, enabling more reliable results.
The enhanced stability and control assure the usability of the PURE system for advanced ribosome display applications.