Improving Protein Expression by Matching Codon Usage
Author Information
Author(s): Angov Evelina, Hillier Collette J., Kincaid Randall L., Lyon Jeffrey A.
Primary Institution: Walter Reed Army Institute of Research
Hypothesis
Harmonizing the codon usage frequencies of target genes with those of the expression host will enhance heterologous protein expression.
Conclusion
The study demonstrates that codon harmonization significantly increases the expression levels of soluble proteins in E. coli.
Supporting Evidence
- Codon harmonization improved protein yields by 4- to 1,000-fold.
- The proteins expressed were soluble and reacted with functional conformation-specific antibodies.
- Previous applications of the algorithm facilitated the expression of malaria vaccine candidates.
Takeaway
This study shows that changing the way genes are written can help bacteria make more of the proteins we want, which is important for vaccines.
Methodology
The study developed an algorithm for codon harmonization and applied it to express malaria vaccine candidates in E. coli.
Limitations
The study primarily focuses on E. coli, and the effectiveness of codon harmonization in other expression systems remains to be determined.
Digital Object Identifier (DOI)
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