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. Author manuscript; available in PMC: 2013 Oct 1.
Published in final edited form as: J Muscle Res Cell Motil. 2012 Jul 1;33(5):305–312. doi: 10.1007/s10974-012-9304-y

Table 1.

Steady-state actin-activated ATPase activities of myosin constructs

Myosin Vmax (s−1) KATPase (μM) Vmax /KATPase (s−1 μM−1)
S619C 7.2 ± 0.3 13.0 ± 1.7 0.55 ± 0.05
S619C-IQ 3.2 ± 0.2 17.3 ± 2.5 0.18 ± 0.03
T688C 10.6 ± 0.4 45.3 ± 2.3 0.23 ± 0.02
T688C/678C 19.2 ± 0.5 65.4 ± 2.4 0.29 ± 0.02
M761 1.8 ± 0.6 35.1 ± 21.3 0.05 ± 0.02
M761-2R 7.7 ± 0.7 59.0 ± 8.2 0.13 ± 0.02
Muscle S1 19.5± 1.0 15.8 ± 2.3 1.23 ± 0.18