Biochemical Evidence for a Putative Inositol 1,3,4,5-Tetrakisphosphate Receptor in the Olfactory System of Atlantic Salmon (Salmo salar)
Figure 3
Inositol polyphosphate selectivity in competing for [3H]IP4 binding to a PMR fraction from salmon olfactory rosettes. The relative amount of specific binding of 14 nM [3H]IP4 was determined in the presence of at least three concentrations of different inositol polyphosphates (InsPx): InsP6 (open triangles), Ins(1,3,4,5,6)P5 (filled circles), Ins(3,4,5,6)P4 (filled triangles), Ins(1,4,5,6)P4 (open circles), Ins(1,3,4)P3 (open squares) and Ins(1,4,5)P3 (filled squares). The level of specific binding of [3H]IP4 in the absence of competitors was set at 100%.
