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. 2014 May 29;53(24):4015–4024. doi: 10.1021/bi500162z

Table 2. Actin-Activated MgATPase Rates of NMII Myosins.

  Vmax (s–1), KATPase (μM) (from steady-state ATPasea)
  NMIIA HMM NMIIB HMM NMIIC HMM
actin 0.49 ± 0.03, 7.0 ± 1.2 0.17 ± 0.02, 3.9 ± 1.2 0.23 ± 0.01, 3.9 ± 0.6
Tm5NM1 0.57 ± 0.03, 1.3 ± 0.3 0.19 ± 0.01, 6.2 ± 1.1 0.33 ± 0.01, 1.3 ± 0.2
a

The values of Vmax and KATPase from steady-state ATPase assays ± the standard error from three or four experiments for Tm5NM1 and one experiment for actin (Figure 4).