Properties & Usage
Unit Definition
One unit is defined as the amount of yDcpS required to convert 50% of a 500 nM solution of the following 25-mer m7G-capped RNA to a 5’-diphosphorylated form in a total reaction volume of 20 µl in 1 hour at 37˚C:
5’-[m7Gppp]rGrUrArGrArArCrUrUrCrGrUrCrGrArGrUrArCrGrCrUrCrArA[3-6FAM]-3’ Reaction Conditions
1X yDcpS Reaction Buffer
Incubate at 37°C
1X yDcpS Reaction Buffer
10 mM Bis-Tris-HCl
1 mM EDTA
(pH 6.5 @ 25°C)
Storage Buffer
300 mM NaCl
10 mM Tris-HCl
0.1 mM EDTA
1 mM DTT
50% Glycerol
pH 7.4 @ 25°C
Heat Inactivation
70°C Specific Activity
20,000 units/mg Unit Assay Conditions
1X yDcpS Reaction Buffer with 500 nM m7G-capped 25-mer 3´-FAM RNA. After incubation at 37°C for 1 hour, yDcpS is inactivated at 70˚C for 15 minutes and decapping is measured by capillary electrophoresis.