In Vitro Reconstitution of the Escherichia Coli 70S Ribosome with a Full Set of Recombinant Ribosomal Proteins

Overview

Journal J Biochem

Publisher Oxford University Press

Specialty Biochemistry

Date 2021 Nov 9

PMID 34750629

Citations 5

Authors

Ryo Aoyama

Keiko Masuda

Masaru Shimojo

Takashi Kanamori

Takuya Ueda

Yoshihiro Shimizu

Affiliations

Soon will be listed here.

Abstract

Many studies of the reconstitution of the Escherichia coli small ribosomal subunit from its individual molecular parts have been reported, but contrastingly, similar studies of the large ribosomal subunit have not been well performed to date. Here, we describe protocols for preparing the 33 ribosomal proteins of the E. coli 50S subunit and demonstrate successful reconstitution of a functionally active 50S particle that can perform protein synthesis in vitro. We also successfully reconstituted both ribosomal subunits (30S and 50S) and 70S ribosomes using a full set of recombinant ribosomal proteins by integrating our developed method with the previously developed fully recombinant-based integrated synthesis, assembly and translation. The approach described here makes a major contribution to the field of ribosome engineering and could be fundamental to the future studies of ribosome assembly processes.

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