Figure 3.

Summary of analysis of X-ray equatorial reflections of skinned rabbit skeletal muscle fibers in the presence or absence of inhibitors. (A), The 1,0 lattice spacing (d_1,0), obtained by Gaussian fitting of the reflection intensity profile after subtraction of the background (assumed exponential). (B), The 1,1/1,0 equatorial reflection intensity ratio from the same fibers. In both (A) and (B), the values are the mean±S.D. (n=6 sets of fibers for blebbistatin and n=4 for others). In most cases, 6 fibers were mounted in a single set, and this was sufficient for recording the equatorial reflections. The results of the paired t-test are also shown. ns=non-significant; and the levels of significance are; *, p<0.05; **, p<0.01; ***, p<0.001.