Figure 2. Regulation of SERCA by PLN and SLN.
(A) A cartoon model showing a SERCA molecule with no protein inhibitors bound (left), PLN bound (middle), and SLN bound (right) illustrates the physical and functional interaction between SERCA and its endogenous protein regulators. (B) A graphical summary shows the independent effects of PLN and SLN on SERCA activity. Refer to the text for further details.