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. Author manuscript; available in PMC: 2014 Aug 1.
Published in final edited form as: Biochim Biophys Acta. 2013 Apr 10;1830(8):4218–4228. doi: 10.1016/j.bbagen.2013.04.005

Figure 7. The effect of the substrate structure on the mode of inhibition of RgpB by PDRgpB.

Figure 7

The mode of inhibition was determined graphically using the Cornish-Bowden plot of S/V versus I, where [S] substrate concentration; Vo, initial rate (velocity) of the reaction; I, inhibitor concentration. Substrates used: (A) Z-FR-AMC, (B) Z-GPR-AMC and (C) Z-AGPR-AMC. Non-competitive inhibition lines intersect on the abscissa (S/v = 0) at I = -Ki); competitive inhibition, lines are parallel.