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Table 1 Kinetic parameters for RNA/DNA unmodified hammerhead ribozyme derivatives.

From: Redesigned and chemically-modified hammerhead ribozymes with improved activity and serum stability

Ribozyme S-30 S-550
  kmax (min-1) "Kd" nM kmax/"Kd" (min-1μM-1) kmax (min-1) "Kd" nM kmax/"Kd" (min-1μM-1)
Rz-12/12 0.8 ± 0.1 7 ± 12 114 ± 200 0.7 ± 0.1 2600 ± 900 0.3 ± .2
Mz-12/12 0.22 ± 0.08 31 ± 6 7 ± 4 0.12 ± 0.01 240 ± 50 0.5 ± .2
Mrz-8/8 0.56 ± 0.06 210 ± 80 2.7 ± 1.3 0.005 ± 0.001 2200 ± 500 0.002 ± .001
Mrz-12/12 4.2 ± 0.3 75 ± 30 56 ± 26 1.6 ± 0.1 120 ± 50 13 ± 6
Rz-6/12 9 ± 1 400 ± 200 22 ± 13 0.6 ± 0.1 2800 ± 900 0.2 ± .1
  1. Cleavage conditions; 37°C, pH 7.6, 10 mM MgCl2, ribozyme is in large excess over RNA substrates S-30 (30 nt) and S-550 (550 nt).