A series of Notch3 mutations in CADASIL; insights from 3D molecular modelling and evolutionary analyses

Dimitrios Vlachakis, Spyridon Champeris Tsaniras, Katerina Ioannidou, Louis Papageorgiou, Marc Baumann, Sophia Kossida


CADASIL disease belongs to the group of rare diseases. It is well established that the Notch3 protein is primarily responsible for the development of CADASIL syndrome. Herein, we attempt to shed light to the actual molecular mechanism underlying CADASIL via insights that we have from preliminary in silico and proteomics studies on the Notch3 protein. At the moment, we are aware of a series of Notch3 point mutations that promote CADASIL. In this direction, we investigate the nature, extent, physicochemical and structural significance of the mutant species in an effort to identify the underlying mechanism of Notch3 role and implications in cell signal transduction. Overall, our in silico study has revealed a rather complex molecular mechanism of Notch3 on the structural level; depending of the nature and position of each mutation, a consensus significant loss of beta-sheet structure is observed throughout all in silico modeled mutant/wild type biological systems.


CADASIL; Notch3 mutations; Notch3 structure


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