The archaeal exosome: Identification and quantification of site-specific motions that correlate with Cap and RNA binding

Abstract

Big and unexpectedly flexible: The 173 kDa exosome core is unexpectedly dynamic in solution. The kinetic and thermodynamic properties connected with the identified exchange process were quantified. Both cap protein and RNA substrate binding significantly alter the identified motions, suggesting that these interactions occur through conformational selection. © 2013 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of Creative Commons the Attribution Non-Commercial NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.