Figure 2.
Sulfation and desulfation of Tib and metabolites. The formation of Tib and the Δ4 monosulfates was carried using SULT2A1 and the 3α- and 3β-monosulfates were generated using SULT1E1 in the presence of 35S-PAPS. The four monosulfates were then tested for sensitivity for hydrolysis by STS. Panel A is the autoradiograph of the formation and hydrolysis of the four monosulfates. Panel B shows the selective hydrolysis of Tib 3β-monosulfate by STS. Each reaction was run in quadruplicate and the mean ± s.d. of the 35S-Tib metabolites generated or remaining after STS incubation is shown.
