Purine Nucleoside Phosphorylase, Human, Recombinant, E. coli Recombinant, human purine nucleotide phosphorylase expressed in E. coli without tags. Purine nucleoside phosphorylase catalyzes the phosphorolysis of N-ribosidic bonds of purine nucleosides and deoxynucleosides. This reaction is reversible. The human enzyme is a target for therapeutic immune response intervention. 产品信息 Form Liquid Formulation In 50 mM Tris-HCl, pH 7.6. Molar mass 32000 Do not freeze 是的 Specific activity ≥25 units/mg protein Unit definition One unit is defined as the amount of enzyme that will convert 1 µmol of MESG and 1 µmol of Pi into 1 µmol of 2-amino-6-mercapto-7-methylpurine and 1 µmol of ribose phosphate in 1 min at 25°C, pH 7.6. Purity Single band by SDS-PAGE 商店和运输信息 Storage +2°C to +8°C Ship Blue Ice Only Standard Handling