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Introduction: Alpha-Momorcharin (α-MMC) is a member of the ribosome-inactivating protein (RIP) family that has been widely used as an antitumor, antiviral and antifungal agent.

Methods: In this study, the codons of DNA encoding α-MMC were optimized for expression in E. coli and cloned into the pET-28a(+) vector. The protein was then expressed in E. coli strain BL21 (DE3) and purified by nickel affinity chromatography.

Results: Under IPTG induction, α-MMC was expressed at approximately 50% of the total protein, showing high-level recombinant protein expression in E. coli. A high amount of purified α-MMC (70 mg) was isolated from 1 L LB culture medium of E. coli BL21 (DE3) with approximately 95% purity. Interestingly, α-MMC inhibited the mycelial growth of Pyricularia oryzae in a concentration-dependent manner.

Conclusion: Using a microbial system for α-MMC expression provides a promising method for the design of a new agent against pathogens.

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Article Details

Issue: Vol 26 No 1 (2023): Vol 26 (1): Under publishing
Page No.: In press
Published: Mar 13, 2023

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Copyright: The Authors. This is an open access article distributed under the terms of the Creative Commons Attribution License CC-BY 4.0., which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 How to Cite
Nguyen, T., & Dang, D. (2023). Molecular cloning and isolation of a recombinant alpha-Momorcharin in E. coli against Pyricularia oryzae. VNUHCM Journal of Science and Technology Development, 26(1), In press.

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