Fig. 5.
![Dependence of Ca2+ channel unitary current on Ba2+ concentration. Experiments were performed as in Fig 4 except that [Ba2+] in pipette solution D was varied as described in Materials and Methods. (A) Current tracings at 5, 10, 30, and 60 mmol/L Ba2+. Vp was at −20 mV. Each tracing represents a separate cell-attached patch. (B) Mean ± SE of unitary current amplitude at 5 mmol/L (n = 3), 10 mmol/L (n = 3), 30 mmol/L (n = 5), and 60 mmol/L (n = 3) Ba2+. Error bars are not shown if they fall within the boundaries of the symbol.](https://ash.silverchair-cdn.com/ash/content_public/journal/blood/89/1/10.1182_blood.v89.1.92/2/bl_0020f5.jpeg?Expires=1720824750&Signature=Twkv6CP0EO-PvqIc6zkyp6SADnJ51gx3FQ2m0b8bL~RLKVBN7P75Hzg9uqkzn2VqJh1JCMRG1~KZNNs82nklJU2YSLu~uIhl0T6bEnY65QrSblUcNCQtFd9tatASwc3bkVfsh11FjZ-GdINYVUx~eXyxp6ZPDo1-YlvkPY2NAuoWe-RI4PNlVHHyD8lA5w0-35rkKVPb5GsMZ93PC4zxYbNvQOMAKnEr~0vdbkzV-G0i2YpWYEyXk87WpfTyzkyQdVMlLegYnQW~wIvIjVajIHR1vn97Bm9fibzyonmod9ycFpO3tkdiAntRMce~Gacivog8fl3r~okToqVZnGAGkA__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA)
Dependence of Ca2+ channel unitary current on Ba2+ concentration. Experiments were performed as in Fig 4 except that [Ba2+] in pipette solution D was varied as described in Materials and Methods. (A) Current tracings at 5, 10, 30, and 60 mmol/L Ba2+. Vp was at −20 mV. Each tracing represents a separate cell-attached patch. (B) Mean ± SE of unitary current amplitude at 5 mmol/L (n = 3), 10 mmol/L (n = 3), 30 mmol/L (n = 5), and 60 mmol/L (n = 3) Ba2+. Error bars are not shown if they fall within the boundaries of the symbol.
