RIPA lysis
Materials
RIPA buffer: 50 mM Tris-HCl (pH 7.5), 1% NP-40, 0.25% Na-deoxycholate, 100 mM NaCl, 1 mM EDTA, protease inhibitor
Procedure
1. Cell harvest (scraping or trypsin-EDTA) and centrifuge at 3000 rpm for 5 min at 4oC.
2. Cell washing once with 1 ml PBS and centrifuge again.
3. Add RIPA lysis buffer (200-300 μl for 6 well scales) and incubate in ice for 30 min
(rocking or vortex every 10 min).
4. Centrifuge at 13000 rpm for 30 min at 4oC.
5. Take supernatant and use it for further analysis.
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