biochemistry, Science

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Ask quTo optimise your kinase assay you require a range of substrate concentrations in the assay starting from 10 µM down to 10 nM substrate in 50 µL total assay volume (use 1:10 dilution steps). Calculate the concentrations required for the substrate stock solutions allowing addition of 10 µL to the kinase assay.
The substrate concentrations have to be how many times higher in the substrate stock solution than in the final kinase assay?
Select one:
a. 20x
b. 5x
c. 50x
d. 4x
e. 2x

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