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. 1998 Sep 15;511(Pt 3):915–933. doi: 10.1111/j.1469-7793.1998.915bg.x

Figure 4. InsP3-induced contraction in α-toxin-permeabilized tracheal SM.

Figure 4

After the 30 mM caffeine response, InsP3 at a range of 100–800 μm with 50 μm GTP was added to the same strip repeatedly (A). The dose-response relationship for InsP3 was determined using six strips. Data are expressed as means ±s.e.m. (n = 6, B).