Research Article
Tropomyosin Period 3 Is Essential for Enhancement of Isometric Tension in Thin Filament-Reconstituted Bovine Myocardium
Table 3
MgATP2- sensitivity and cooperativity of relaxation. *P value ≤ .05 compared to nfTm; **P value ≤ .01 compare to nfTm; else, P value > 0.05. The Hill factor (g) and pS50 (MgATP2- sensitivity) were deduced by fitting the pS-tension (or stiffness) data to (2), where pS = –log10(S) and S = [MgATP]. In all experiments, temperature was 25°C, ionic strength was 200 mM, and pH was adjusted to 7.00. The data were individually fitted to (2), averaged, and tabulated with SEM.
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