Figure 3.
Enzyme activity of CKB (■) and CKB+ASB9(1-252) (●) at 3 nM enzyme concentration and 30° C. The KM was 2.1 ± 0.2 mM and the Vmax was 3.36 ± 0.07 × 10−7 Ms−1 (for comparison to literature values this translated to kcat = 6.7×103 min−1). ASB9(1-252) binding to CKB partially inhibits the activity of CKB increasing the KM slightly to 3.4 ± 0.3 mM and decreasing the Vmax to 2.1 ± 0.06 × 10−7 Ms−1.