Component | Final concentration | Stock | Amount stock/1.75 ml |
---|---|---|---|
HEPES-KOH, pH 7.6 | 10 mM | 1 M | 17.5 μl |
DTT | 1 mM | 2 M | 0.875 μl |
Creatine phosphokinase | 10 U/μl | Sigma C3755 | 17,500 U |
Glycerol | 50% | 875 μl |
Add DEPC-treated water to 1.75 ml, mix, prepare 25 μl aliquots, freeze in liquid nitrogen, store at −80 °C.