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  • 01-05-2018
  • Biology
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What are the limitations to using electrophoresis to verify purity of a protein product?

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BioWizard
BioWizard BioWizard
  • 10-05-2018
 SDS-PAGE electrophoresis is used to verify the purity of a protein product. Some of the limitations of this method are:
·     identification of a band on a protein gel is not always reliable because different polypeptides can have very similar molecular masses,
·     band on a protein gel may mask the presence of more than one polypeptide, ·     presence of non-protein residues can affect the mobility of polypeptide and thus cause an error.
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