Protac-Induced Protein Degradation in Drug Discovery: Breaking the Rules or Just Making New Ones?

Targeted protein degradation, using bifunctional small molecules (Protacs) to remove specific proteins from within cells, has emerged as a novel drug discovery strategy with the potential to offer therapeutic interventions not achievable with existing approaches. In this Perspective, the brief history of the field is surveyed from a drug discovery perspective with a focus on the key advances in knowledge which have led to the definition and exemplification of protein degradation concepts and their resulting applications to medicine discovery. The approach has the potential to bring disruptive change to drug discovery; the many potential advantages and outstanding challenges which lie ahead of this technology are discussed.

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