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        Silver: Lysate for Western

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      • Grow cells
      • Harvest
        • Spin down
        • Wash with PBS
        • Spin down enough cells to collect a 50-100 µL cell pellet in a FastPrep tube
      • Prepare lysis buffer (beforehand) and chill on ice
        • PBSMT:
          • 2.5 mM MgCl2
          • 3 mM KCl
          • 0.5% Triton X-100
          • in PBS
        • Add protease inhibitors
          • PMSF: 1 mL per 100 mL buffer
            • Use fresh PMSF: dissolve 0.035g per 1mL 100%EtOH
          • PLAAC: 100 µL per 100 mL buffer
          • 0.5 M Benzamidine: 260 µL per 100 mL buffer
      • Add 50-100 µL of cold lysis buffer to cell pellet and vortex
      • Add 1-2 scoops glass beads (bead level should be just below liquid level)
      • Mix everything together by vortex
      • Lyse in FastPrep bead beater
        • 6.5 m/s
        • 40 second lysis
      • Add 500 µL lysis buffer (keep everything on ice!)
      • Spin down at maximum speed in tabletop centrifuge for 10 min. (in cold room)
      • Remove supernatant (lysate) to another tube.
      •  

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