Table 1

Kinetic values (kcat and Km) and the catalytic efficiency (kcat/Km) derived for proteolysis of VWF115 and VWF115(D1614A) by both ADAMTS13 and ADAMTS13(R349A)

VWF 115
VWF115(D1614A)
Km, μMkcat, s−1kcat/Km, ×105 M−1s−1Km, μMkcat, s−1kcat/Km, ×105 M−1s−1
ADAMTS13 1.88 ± 0.73 0.59 ± 0.13 3.24 ± 0.57 7.99 ± 2.38 0.37 ± 0.04 0.50 ± 0.17 
ADAMTS13(R349A) 6.20 ± 0.56 0.09 ± 0.01 0.15 ± 0.01 8.75 ± 2.34 0.47 ± 0.04 0.57 ± 0.13 
VWF 115
VWF115(D1614A)
Km, μMkcat, s−1kcat/Km, ×105 M−1s−1Km, μMkcat, s−1kcat/Km, ×105 M−1s−1
ADAMTS13 1.88 ± 0.73 0.59 ± 0.13 3.24 ± 0.57 7.99 ± 2.38 0.37 ± 0.04 0.50 ± 0.17 
ADAMTS13(R349A) 6.20 ± 0.56 0.09 ± 0.01 0.15 ± 0.01 8.75 ± 2.34 0.47 ± 0.04 0.57 ± 0.13 

All data are mean of 3 separate experiments ± SD.

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