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Silver: Lysate for Western

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731

 

  • 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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