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Journal Article
Reprogramming the genetic code
2021
Overview
The encoded biosynthesis of proteins provides the ultimate paradigm for high-fidelity synthesis of long polymers of defined sequence and composition, but it is limited to polymerizing the canonical amino acids. Recent advances have built on genetic code expansion — which commonly permits the cellular incorporation of one type of non-canonical amino acid into a protein — to enable the encoded incorporation of several distinct non-canonical amino acids. Developments include strategies to read quadruplet codons, use non-natural DNA base pairs, synthesize completely recoded genomes and create orthogonal translational components with reprogrammed specificities. These advances may enable the genetically encoded synthesis of non-canonical biopolymers and provide a platform for transforming the discovery and evolution of new materials and therapeutics.The ability to reprogramme cellular translation and genomes to produce non-canonical biopolymers has wide-ranging applications, including in therapeutics, but has yet to be fully realized. In this Review, de la Torre and Chin discuss recent advances towards achieving this goal.
Publisher
Nature Publishing Group
Subject
