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. Author manuscript; available in PMC: 2013 Feb 14.
Published in final edited form as: Biochemistry. 2012 Jan 30;51(6):1134–1147. doi: 10.1021/bi201206v

Table 4. Steady state activity of the Mo domains of wild-type, R472Q, and R742M SO using Ferricyanide as an artificial electron acceptor.

Vmax (U/mg) Kmsulfite(μM)
pH 8.5
Wild type 99.8 14.9
R472Q 99.6 223
R472M 46.4 94.0
pH 7.0
Wild type 78.0 4.56
R472Q 50.5 12.8
R472M 27.9 5.00