Figure 6
Spacing changes of the 2.7 nm actin-based meridional reflection and the myosin-based meridional reflections against force relative to the isometric force (P0). Data of `cont. half' and `cont. full' were obtained from the experiments with contracting muscles at half- and full-filament overlap, respectively. Those of `cont. release' and `cont. stretch' were obtained from experiments with contracting muscles during slow length release and stretch, respectively. Data of rigor were from the rigor muscles. The data point (▾) obtained from the overstretched muscle upon activation is shown at P0 = 0 for comparison. Linear regression lines were obtained by the least-squares fit to the data points. |