Key result
Epilepsy-causing mutation disrupts coiled-coil formation to decrease CaM-binding affinity and PIP2 sensitivity in Kv7.2 channels.
An epilepsy-causing mutation in Kv7.2 channels disrupts coiled-coil formation, decreasing CaM-binding affinity and uncoupling PIP2 regulation.
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No immediate clinical implications; extends mechanistic understanding of Kv7.2 epilepsy mutations in models.
Alberdi et al. (2015) studied Epilepsy. Epilepsy-causing mutation vs. Wild-type was evaluated on CaM-binding affinity and PIP2 sensitivity. Disruption of coiled-coil formation by an epilepsy-causing mutation decreases apparent calmodulin-binding affinity and interrupts its influence on PIP2 sensitivity in Kv7.2 channels.
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