![Figure 1. Response to isoproterenol and high [Ca2+]out. Representative traces from atrial (top) and ventricular (bottom) WT (left) and R4496C (right) trabeculae at baseline (1 Hz, 2 mM [Ca2+]out, 30°C; black traces), under isoproterenol (10 µM; light gray traces), and in high extracellular calcium (8 mM [Ca2+]e; dark gray traces). For average values see Table 1.](https://cdn.rupress.org/rup/content_public/journal/jgp/147/1/10.1085_jgp.201511450/5/jgp_201511450r_fig1.jpeg?Expires=1767669788&Signature=ner5Spg3AW5JPewLAjJMxEMaQQgNOC9Q9rfB6b4BmBELV-jcLfRCsAKWOxg9iHmBB5Uy-zybACBr9y1usXrUtWOgXYkckToJyN1oCKsaEgfZC6iQ3XgSUmFCj7gtfEobHaDqxc6YRbjB4Lxp5r9zA9rs2myGLxjdO6AP6246DjFx1~eMM74oad5prryM99Tl9myBDXIlJ91umC~dspq9hOpoywXIFHd9iDFgx~tMZm96Z1HLvkW2hXTiLMAQ7aPhJ7MOZ8sT2Br8fn-cM47M1XLi5nKZ1ERAZhAwU4U8K1ym40fVxlWW9TV8K~FEbquPej2desrp3kISCnfxTvY1zg__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA)
Figure 1.
Response to isoproterenol and high [Ca2+]out. Representative traces from atrial (top) and ventricular (bottom) WT (left) and R4496C (right) trabeculae at baseline (1 Hz, 2 mM [Ca2+]out, 30°C; black traces), under isoproterenol (10 µM; light gray traces), and in high extracellular calcium (8 mM [Ca2+]e; dark gray traces). For average values see Table 1.
