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. Author manuscript; available in PMC: 2012 Apr 26.
Published in final edited form as: Biochemistry. 2011 Mar 17;50(16):3282–3287. doi: 10.1021/bi2001664

Table 1.

Kinetic parameters and melting temperatures for wild-type (WT) caspases, the network-disrupters and helix-breakers.

KM (μM) kcat (s−1) Apo Tm (°C) Active site bound Tm (°C) ΔTm (°)


WT casp-6a 66 ±7 0.81 ±0.01 77 ± 0.5 80.3 ± 0.4 3.3
WT casp-3 5a 9.1b 83 >90 >7
WT casp-7c 23 ±2 0.35 ±3 ×l0−3 59.8 ±0 77.7 ± 3.8 17.9
E53K 100 ±28 0.7 ±0.07 77 ±0.1 77.2 ±0.4 0.2
E63V 121 ±24 0.78 ±0.08 74.6 ±1.5 77.5 ±0.1 2.9
E53K+E63V 68 ±16 0.74 ±0.06 75.5 ±0.2 78.3 ± 0.8 2.8
C3HB (A132G, K133P) 46 ± 3.5 0.84 ± 0.06 70.7 ±1.0 76.5 ±0.7 5.8
C7HB (A132G, E135P) 79 ±13 1.2 ±0.03 73.1 ±0.5 77.8 ±0.3 4.7

Km, kcat, and Tm were measured in triplicate from samples independently prepared on three separate days.

a

Reported in (9).

b

Reported in (17).

c

Reported in(18).