Reprogramming the genetic code: The emerging role of ribosomal frameshifting in regulating cellular gene expression

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Abstract
Reading frame maintenance is a critical property of ribosomes. However, a number of genetic elements have been described that can induce ribosomes to shift on mRNAs, the most well understood of which are a class that directs ribosomal slippage by one base in 5' (‐1) direction. This is referred to as programmed ‐1 ribosomal frameshifting (‐1 PRF). Recently, a new ‐1 PRF promoting element was serendipitously discovered in a study examining the effects of stretches of adenosines in the coding sequences of mRNAs. Here, we discuss this finding, recent studies describing how ‐1 PRF is used to control gene expression in eukaryotes, and how ‐1 PRF is itself regulated. The implications of dysregulation of ‐1 PRF on human health are examined, as are possible new areas in which novel ‐1 PRF promoting elements might be discovered.Also watch the Video
Funding Information
  • National Institutes of Health (R01 HL119439, R01 GM117177)

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