Name: electrophoretic separation of proteins
Uploaded: 2008-06-12T13:29:00
Description: Watch this Scientific Journal Video about Electrophoretic Separation of Proteins at JoVE.com

The complete text protocol for this experimental approach is available in <a href="http://www.mrw.interscience.wiley.com/emrw/9780471142720/cp/cpmb/article/mb1002a/current/abstract" target="_blank">Current Protocols in Molecular Biology</a>.

electrophoretic separation of proteins

Electrophoresis is used to separate complex mixtures of proteins (e.g., from cells, subcellular fractions, column fractions, or immunoprecipitates), to investigate subunit compositions, and to verify homogeneity of protein samples. It can also serve to purify proteins for use in further applications. In polyacrylamide gel electrophoresis, proteins migrate in response to an electrical field through pores in a polyacrylamide gel matrix; pore size decreases with increasing acrylamide concentration. The combination of pore size and protein charge, size, and shape determines the migration rate of the protein. In this unit, the standard Laemmli method is described for discontinuous gel electrophoresis under denaturing conditions, i.e., in the presence of sodium dodecyl sulfate (SDS). 

Watch this Scientific Journal Video about Electrophoretic Separation of Proteins at JoVE.com

Electrophoretic Separation of Proteins

In this video, we demonstrate a method for electrophoretic separation of proteins using poly-acrylimide gel electrophoresis (PAGE).

Electrophoresis is used to separate complex mixtures of proteins (e.g., from cells, subcellular fractions, column fractions, or immunoprecipitates), to ...

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Biology

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