Translational control of gene expression via interacting feedback loops

Phys Rev E. 2019 Nov;100(5-1):050402. doi: 10.1103/PhysRevE.100.050402.

Abstract

Translation is a key step in the synthesis of proteins. Accordingly, cells have evolved an intricate array of control mechanisms to regulate this process. By constructing a multicomponent mathematical framework we uncover how translation may be controlled via interacting feedback loops. Our results reveal that this interplay gives rise to a remarkable range of protein synthesis dynamics, including oscillations, step change, and bistability. This suggests that cells may have recourse to a much richer set of control mechanisms than was previously understood.

MeSH terms

  • Feedback, Physiological*
  • Gene Expression Regulation / physiology*
  • Models, Genetic*
  • Protein Biosynthesis*