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Selectivity and dynamics of VAP family tether exchange across membrane contact sites

To integrate diverse cellular function and coordinate homeostasis, the endoplasmic reticulum (ER) communicates with all other intracellular compartments through physical interfaces termed membrane contact sites (MCSs). Given the sheer diversity of possible MCS pairings, how the ER discriminates between simultaneously available binding partners remains unclear. To explore this, we performed…

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