Table summary of the initial enzyme velocities (v 0 ) for Sc Vip1 PD versus 1,5-InsP 8 , 1-InsP 7 , or 5-InsP 7 derived from an NMR-based phosphatase assay. Pseudo-2D NMR spectra of ScVip1 PD incubated with different substrates (blue traces) are shown below, overlaid with the respective reaction products 5-InsP 7 , or InsP 6 (red traces).