Translocation between PI(4,5)P2-poor and PI(4,5)P2-rich microdomains during store depletion determines STIM1 conformation and Orai1 gating

The Orai1-STIM1 current undergoes slow Ca2+-dependent inactivation (SCDI) mediated by binding of SARAF to STIM1. Here, we report the use of SCDI by SARAF as a probe of the conformation and microdomain localization of the Orai1-STIM1 complex. We find that interaction of STIM1 with Orai1 C terminus an...

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Bibliographic Details
Main Authors: Maléth, Jozsef, Choi, Seok, Muallem, Shmuel, Ahuja, Malini
Format: Online
Language:English
Published: 2014
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4270102/