Description_x000D_ Application_x000D_ 3′-Phosphoadenosine 5′-phosphosulfate (PAPS) is used as a universal sulfonate donor for in vivo sulfonation by sulfotransferases. PAPS is used for the sulfation of glycans. PAPS is also useful to study the distribution and function of its biological transporter(s)._x000D_ Adenosine 3′-phosphate 5′-phosphosulfate lithium salt has been used in a study that cloned and characterized a mammalian lithium-sensitive bisphosphate 3′-nucleotidase inhibited by inositol 1,4-bisphosphate. Adenosine 3′-phosphate 5′-phosphosulfate lithium salt has also been used in a study to assess the golgi-resident PAP-specific 3′-phosphatase-coupled sulfotransferase assays._x000D_ Packaging_x000D_ 1, 5, 25 mg in glass bottle_x000D_ Quality_x000D_ Major impurities appear to be adenosine 3′,5′-diphosphate, sulfate and ammonia substitution products._x000D_ Caution_x000D_ Rapid decomposition occurs when exposed to room temperature: up to 17% per day at 37 °C. We ship on dry ice to minimize decomposition in transit._x000D_ Other Notes_x000D_ Tandem Mass Spectrometry data independently generated by Scripps Center for Metabolomics is available to view or download in PDF. A1651.pdf Tested metabolites are featured on Scripps Center for Metabolomics METLIN Metabolite Database. To learn more, visit sigma.com/metlin.