Figure 6.
Effect of Wild-type Fast Skeletal TnI and TnI R174Q on Ca2+-sensitivity of force development in skinned rabbit muscle fibers. After TnT treatment the fibers were reconstituted with TnI·TnC complex. Comparison of rabbit fibers after they were reconstituted with wild-type fsTnI or fsTnI R174Q in the presence of fsTnC. The Ca2+ dependence of force was measured in each preparation after reconstituting whole Tn. Each point is the average of 3–5 experiments and represents the mean ±S.D.