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. 2015 Nov 24;32(5):344–351. doi: 10.1016/j.joa.2015.09.008

Fig. 4.

Fig. 4.

The store overload-induced Ca2+ release (SOICR) hypothesis [8]. With normal RyR2, the resting and stress levels of free calcium are below the SOICR threshold (panel A). If the SOICR threshold falls below the level of free SR calcium as with mutant RyR2, a leak of Ca2+ will occur and generate a delayed after-depolarization.