pH HRP MHRP
  Km(mM) kcat(min-1) kcat/Km(mM-1min-1) Km(mM) kcat(min-1) kcat/Km(mM-1min-1)
4 1.30 1985 1533 0.66 1570 2378
5 2.50 1477 583 4.05 1185 292
6 0.45 2399 5292 0.65 2398 3654
7 0.79 2895 3640 0.89 2688 2990
8
9
10
1.15
0.85
2.25
2770
2688
1446
2400
3180
642
1.82
1.55
0.55
2564
2316
1322
1404
1488
2411
Table 1: Kinetic parameters for the native and modified horseradish peroxidase in pH values between 4-10.