Western Blot Controls and Antibody Selection

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Questions and Answers

What is the recommended boiling time for samples before SDS-PAGE?

  • 10 minutes (correct)
  • 5 minutes
  • 20 minutes
  • 15 minutes

What is the optimal loading control antibody used in the procedure?

  • Anti-tubulin antibody [mAbcam 9484]
  • Anti-GAPDH antibody [mAbcam 9484] (correct)
  • Anti-actin antibody [mAbcam 9484]
  • Anti-Bcl-2 antibody [mAbcam 9484]

What type of buffer is recommended for blocking during the procedure?

  • 5% milk (correct)
  • 2% BSA
  • 10% BSA
  • 10% milk

What could be a consequence of poor washing during the procedure?

<p>Incomplete transfer of protein (C)</p> Signup and view all the answers

What is a possible issue when there are air bubbles between the gel and membrane during transfer?

<p>Incomplete contact between gel and membrane (C)</p> Signup and view all the answers

Which type of blocking buffer would be more suitable for a different antibody than the Anti-GAPDH used?

<p>5% BSA (B)</p> Signup and view all the answers

What could happen if too much protein or antibody is used in the procedure?

<p>Decreased signal intensity (A)</p> Signup and view all the answers

How can incomplete contact between the gel and membrane during transfer affect the results?

<p>Increase background noise on the membrane (C)</p> Signup and view all the answers

What is the purpose of diluting both sample and antibody when too much is used?

<p>Enhancing signal strength (A)</p> Signup and view all the answers

Why might different blocking buffers be optimal for different antibodies?

<p>Influencing binding specificity between antibodies and proteins (B)</p> Signup and view all the answers

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