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. Author manuscript; available in PMC: 2013 Apr 20.
Published in final edited form as: J Mol Biol. 2012 Feb 14;418(1-2):32–46. doi: 10.1016/j.jmb.2012.02.013

Figure 3.

Figure 3

The ATP concentration dependence of select kinetic parameters for UvrD monomer translocation along ssDNA. (A)- The observed rate-limiting stepping rate constant (kt) and macroscopic translocation rate (mkt) as a function of ATP fit to a hyperbola and Michaelis-Menten, respectively; fit parameters shown in plot. (B)- The observed translocation kinetic step size (m). (C)- ATP coupling stoichiometry (c/m). (D)- Comparison of the trends in the kinetic step size (m) and macroscopic translocation rate (mkt).