SDS-page gels

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Creating a Protein Gel

Materials

  • Clean casting stand w/ dual gel apparatus
  • Glass plate holders (w/ white or black knobs)
  • Additional spacers (1.5) with (1.5) size combs
    • Different spacers can be used to create different gel widths (ie 0.75 spacers compared to 1.5 spacers)
  • Two clean glass plates (one larger and one smaller, cleaned with ethanol + water)
    • If a plate has a crack on it, crack can be sealed with clear tape
    • Look out for cracks on the bottom of the plates, this will cause leaks

Steps for assembling gel apparatus

  1. Place the spacers onto the larger clean glass, by the edges, and place the smaller clean glass plate on top
  2. Place the two glass plates into the glass plate holder (knobs facing away from you) and adjust until bottom is flush and spacers are in the corners. Tighten the knobs
  3. Take the whole glass holder (w/ adjusted plates) onto the casting apparatus. Start by pushing the holder into the rubber gasket on the bottom of the casting apparatus and snap into the top portion
  4. To ensure the seal has been made, use a dropper to add a small portion of DI water to test. Test also the green combs to ensure the correct spacers are used