Skip to main content
. 2015 Jan 14;65(2):195–200. doi: 10.1007/s12576-014-0354-3

Fig. 1.

Fig. 1

Cooper’s model mimicked by CellDesigner. a Graphical notations used in CellDesigner to depict Cooper’s model. b Computational oscillation loop of β-AR signaling molecules. cAMP, Ca2+, AC, and PKA formed a stable and persistent negative feedback loop. The intracellular concentration of cAMP at baseline (0 min) was taken as 1 (arbitrary units)