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Description
A common procedure used for determining the size of proteins in the research laboratory is polyacrylamide gel electrophoresis, where denatured proteins are separated in the presence of the detergent sodium dodecyl sulfate (SDS). However, preparing polyacrylamide gels is laborious and requires a number of toxic chemicals. To avoid these limitations, we provide a special blend of nontoxic agarose that yields excellent resolution of SDS-treated proteins. In this innovative series, students use SDS-agarose gel electrophoresis to perform procedures including molecular weight determinations, peptide mapping analysis, detection of specific enzymes in crude cell extracts, affinity chromatography, and immunological studies using the Western blot procedure.
