Cell lines cultured in 6 cm diameter round plastic dishes (0.5–1 × 106 cells) or 6-well microtiter plates (0.25–0.5 × 106 cells), ready for harvesting
6 cm diameter round plastic dishes, Greiner Bio-One, # 628160, or TPP, # 93060
6-well microtiter plates, Nunc, Thermo Fisher Scientific, # 140675, or TPP, # 92406
NaCl Ajax Finechem, Thermo Fisher Scientific, # AJA465
KCl, Ajax Finechem, Thermo Fisher Scientific, # AJA383
Na2HPO4, Sigma-Aldrich, # S5136
KH2PO4, Sigma-Aldrich, # P5379
Tris, Formedium, UK, # TRIS01
HCl to adjust pH, Ajax Finechem, Thermo Fisher Scientific, # AJA1
Glycerol, Ajax Finechem, Thermo Fisher Scientific, # AJA242
Sodium dodecyl sulfate (SDS), Sigma-Aldrich, # L3771
2-mercaptoethanol (14.3 M), Sigma-Aldrich, # M6250
Bromophenol blue Sigma-Aldrich, # B5525
Ice chips
Dry ice or liquid nitrogen are preferred, otherwise use:
Metal rack able to hold 1.5 ml tubes, precooled in −20 °C or −80 °C freezer.
e.g. 80-well Chamber for 1.5 ml tubes, Diversified Biotech, USA, # CHAM-8000, or CoolRack
Thermoconductive Tube Racks, BioCision # M30-PF, also sold by Sigma-Aldrich, # BCS-128