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Glassylike low-frequency dynamics of globular proteins

P. Etchegoin*

  • Centro Atómico Bariloche & Instituto Balseiro, Comisión Nacional de Energía Atómica & Universidad Nacional de Cuyo, 8400-San Carlos de Bariloche, Río Negro, Argentina

  • *Electronic address: etchegoi@cab.cnea.edu.ar

Phys. Rev. E 58, 845 – Published 1 July, 1998

DOI: https://doi.org/10.1103/PhysRevE.58.845

Abstract

It is shown that globular proteins display a universal average structure factor accounting for their common aminoacid base. This property, linked to the construction of a random elastic network to study the low-frequency dynamics, leads to striking similarities between the physics of globular proteins and that of glassy or amorphous nanocrystals. A few consequences of this interpretation are inquired into, particularly, in connection with some of the universal properties of the low-frequency dynamics that were recently discovered for globular proteins.

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