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. 2001 Feb 6;98(4):2023–2028. doi: 10.1073/pnas.041327398

Figure 3.

Figure 3

The effects of isoproterenol (ISO), forskolin (FSK), and KB-R7943 on voltage dependence of INa-Ca. (A) Voltage dependence of INa-Ca in control and ISO-containing solutions. (B) Voltage dependence of INa-Ca in control and FSK-containing solutions. (C) Voltage dependence of INa-Ca in control and KB-R7943-containing solutions. Current–voltage relations for control INa-Ca and INa-Ca in the presence of ISO, FSK, or KB-R7943 were constructed from records during the ramp pulse shown at the top of Fig. 2A after subtraction of Ni2+-resistant current.