Genetic Encoding of Phosphorylated Amino Acids into Proteins
Michael C Allen1, P Andrew Karplus1, Ryan A Mehl1
1Department of Biochemistry and Biophysics, Oregon State University, GCE4All Research Center, 2011 Agricultural and Life Sciences, Corvallis, Oregon 97331 United States.
Chemical Reviews
|May 1, 2024
Summary
Genetic code expansion (GCE) enables direct synthesis of site-specific phosphorylated proteins, overcoming limitations of traditional methods. This technology expands the study of phospho-proteoforms in biology and disease.
Area of Science:
- Biochemistry
- Molecular Biology
- Synthetic Biology
Background:
- Reversible phosphorylation is crucial for protein function in physiology and disease.
- Studying specific phospho-proteoforms is challenging due to limitations in current protein generation methods.
Purpose of the Study:
- To review the development and application of genetic code expansion (GCE) for synthesizing homogeneous phospho-proteins.
- To discuss the advantages and limitations of GCE technologies for incorporating phosphoamino acids and their mimics.
Main Methods:
- Genetic code expansion (GCE) allows direct incorporation of non-canonical amino acids, including phosphoamino acids, during protein translation.
- Review of existing GCE technologies for phosphoserine, phosphothreonine, phosphotyrosine, and their phosphatase-resistant mimics.
Main Results:
- GCE provides a versatile alternative to kinase-based or chemical semisynthesis for generating site-specific phospho-proteins.
- Developed GCE technologies are increasingly robust, enabling the study of diverse phospho-proteoforms and facilitating new biological discoveries.
Conclusions:
- GCE is a transformative technology for advancing phospho-protein research.
- Further development of GCE holds significant promise for addressing complex biological questions in phosphorylation.
- Practical guidance for applying GCE technologies is provided for broader accessibility.
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