Int J Biol Sci 2007; 3(6):365-374. doi:10.7150/ijbs.3.365 This issue Cite

Research Paper

An mRNA-protein Fusion at N-terminus for Evolutionary Protein Engineering

Shingo Ueno, Hidenao Arai, Miho Suzuki, Yuzuru Husimi

Department of Functional Materials Science, Saitama University, 255 Shimo-okubo, Sakura-ku, Saitama 338-8570, Japan

Citation:
Ueno S, Arai H, Suzuki M, Husimi Y. An mRNA-protein Fusion at N-terminus for Evolutionary Protein Engineering. Int J Biol Sci 2007; 3(6):365-374. doi:10.7150/ijbs.3.365. https://www.ijbs.com/v03p0365.htm
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Abstract

A novel method to link a nascent protein (phenotype) to its mRNA (genotype) covalently through the N-terminus was developed. The mRNA harboring amber stop codon at just downstream of initiation site was hybridized with hydrazide-modified ssDNA at upstream of coding region and was ligated to the DNA. This construct was then modified with 4-acetyl-phenylalanyl amber suppressor tRNA. This modified construct was fused with the nascent protein via the phenylalanine derivative when the mRNA uses the amber suppressor tRNA to decode the amber stop codon. The obtained fusion molecule was used successfully in selective enrichment experiments. It will be applicable for high-through-put screening in evolutionary protein engineering. In contrast to fusion molecules generated by other methods in which the protein is linked to genotype molecule through the C- terminus, our fusion molecule will serve to select a protein for which the C-terminus is essential to be active.

Keywords: In vitro selection, mRNA-display, in vitro virus, C-terminus, Non-natural amino acid, T4 RNA Ligase


Citation styles

APA
Ueno, S., Arai, H., Suzuki, M., Husimi, Y. (2007). An mRNA-protein Fusion at N-terminus for Evolutionary Protein Engineering. International Journal of Biological Sciences, 3(6), 365-374. https://doi.org/10.7150/ijbs.3.365.

ACS
Ueno, S.; Arai, H.; Suzuki, M.; Husimi, Y. An mRNA-protein Fusion at N-terminus for Evolutionary Protein Engineering. Int. J. Biol. Sci. 2007, 3 (6), 365-374. DOI: 10.7150/ijbs.3.365.

NLM
Ueno S, Arai H, Suzuki M, Husimi Y. An mRNA-protein Fusion at N-terminus for Evolutionary Protein Engineering. Int J Biol Sci 2007; 3(6):365-374. doi:10.7150/ijbs.3.365. https://www.ijbs.com/v03p0365.htm

CSE
Ueno S, Arai H, Suzuki M, Husimi Y. 2007. An mRNA-protein Fusion at N-terminus for Evolutionary Protein Engineering. Int J Biol Sci. 3(6):365-374.

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