Skip to main content
. 1997 Sep 16;94(19):10063–10068. doi: 10.1073/pnas.94.19.10063

Table 4.

Catalytic properties of hu17E8 active-site mutants

Mutation kcat, min−1 Km, μM kcat/Km, M−1⋅min−1 kcat/Km (mutant)
EC50 (hu17E8)
kcat/Km (hu17E8) EC50 (mutant)
hu17E8 59 580 1.0  ×  105 1.0 1.0
His-35HAla * * <5.0  ×  103 <0.05 ND
His-35HGln 30 3,800 8.0  ×  103 0.08 2.1
Ser-95HAla 44 210 2.1  ×  105 2.1 1.4

ND = not determined. 

*

Activity too weak to determine kcat and Km