| Biological Activity |
SBI-797812 is structurally similar to active-site directed NAMPT inhibitors and blocks binding of these inhibitors to NAMPT with EC50 of 0.37 μM. SBI-797812 shifts the NAMPT reaction equilibrium towards NMN formation, increases NAMPT affinity for ATP, stabilizes phosphorylated NAMPT at His247, promotes consumption of the pyrophosphate by-product, and blunts feedback inhibition by NAD+. Treatment of cultured cells with SBI-797812 increases intracellular NMN and NAD+. Dosing of mice with SBI-797812 elevates liver NAD+[1].
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