Measurement of resting cytosolic Ca2+ concentrations and Ca2+ store size in HEK-293 cells transfected with malignant hyperthermia or central core disease mutant Ca2+ release channels.

Abstract excerpt

Malignant hyperthermia (MH) and central core disease (CCD) mutations were introduced into full-length rabbit Ca2+ release channel (RYR1) cDNA, which was then expressed transiently in HEK-293 cells. Resting Ca2+ concentrations were higher in HEK-293 cells expressing homotetrameric CCD mutant RyR1 than in cells expressing homotetrameric MH mutant RyR1. Cells expressing homotetrameric CCD or MH mutant RyR1 exhibited...

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