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. 2023 Jun 3;4(2):102336. doi: 10.1016/j.xpro.2023.102336

Proteinase K Buffer (2×)

Reagent Final concentration Amount
Tris-HCl (1 M) 200 mM 50 mL
EDTA, pH 8.0 (0.5 M) 20 mM 10 mL
NaCl (5 M) 300 mM 15 mL
SDS 2% (w/v) 5 g
Nuclease-free water N/A to 250 mL
Total N/A 250 mL

Buffer can be stored at room temperature (20°C−25°C) up to 3 months.