Relevance of the speed and direction of pulling in simple modular proteins

نویسندگان

  • Carlos A. Plata
  • Zackary N. Scholl
  • Piotr E. Marszalek
  • A. Prados
چکیده

A theoretical analysis of the unfolding pathway of simple modular proteins in lengthcontrolled pulling experiments is put forward. Within this framework, we predict the first module to unfold in a chain of identical units, emphasizing the ranges of pulling speeds in which we expect our theory to hold. These theoretical predictions are checked by means of steered molecular dynamics of a simple construct, specifically a chain composed of two coiled-coils motives, where anisotropic features are revealed. These simulations also allow us to give an estimate for the range of pulling velocities in which our theoretical approach is valid.

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تاریخ انتشار 2017