A dual mechanism promotes switching of the Stormorken STIM1 R304W mutant into the activated state

Stormorken syndrome is associated with the R304W mutation in STIM1, which is a Calcium sensor in the endoplasmic reticulum. Here authors use FRET and electrophysiology to show that R304W induces STIM1 conformational extension by a dual mechanism resulting in constitutive activation of Ca2+ channels.

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Auteurs principaux: Marc Fahrner, Michael Stadlbauer, Martin Muik, Petr Rathner, Peter Stathopulos, Mitsu Ikura, Norbert Müller, Christoph Romanin
Format: article
Langue:EN
Publié: Nature Portfolio 2018
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Accès en ligne:https://doaj.org/article/f3d205c02ef7403b8fda99785e3df276
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Résumé:Stormorken syndrome is associated with the R304W mutation in STIM1, which is a Calcium sensor in the endoplasmic reticulum. Here authors use FRET and electrophysiology to show that R304W induces STIM1 conformational extension by a dual mechanism resulting in constitutive activation of Ca2+ channels.