Controlled Electrophoresis of Serum Proteins on Polyacrylamide Gel

Polyacrylamide gel electrophoresis of spinal-fluid proteins.

Twenty-three control samples of CSF were analyzed by vertical column electrophoresis on acrylamide gel. Quantitation results using a microdensitometer are presented. The normal protein pattern shows 15 constant bands which coincide in mobility and in many cases in staining pattern with serum proteins. The haptoglobin peaks, except for the band of the 1-1 type and the leading band of the 2-1 typ...

SDS Polyacrylamide Gel Electrophoresis of Proteins.

Probably the most widely used of techniques for analyzing mixtures of proteins is SDS polyacrylamide gel electrophoresis. In this technique, proteins are reacted with the anionic detergent, sodium dodecylsulfate (SDS, or sodium lauryl sulfate) to form negatively charged complexes. The amount of SDS bound by a protein, and so the charge on the complex, is roughly proportional to its size. Common...

Behavior of the Serum proteins in starch-agar-gel electrophoresis

Resolution of Bacterial Proteins by Polyacrylamide Gel Electrophoresis on Slabs

The application of a method of electrophoretic protein analysis to the investigation of the total protein composition of Salmonella typhimurium is described. It involves electrophoresis of many samples simultaneously on a thin slab of acrylamide gel, in the presence of sodium dodecyl sulfate, with the discontinuous buffer system of Laemmli ((19’70) Nature 227, 680485). Up to about 25 samples ca...

Polyacrylamide Gel Electrophoresis

Polyacrylamide gels are typically formed by polymerization of the monomer acrylamide crosslinked to the co-monomer, N,N’-methylenebis-acrylamide, commonly called BIS. This process is a freeradical polymerization that requires an initiator, usually ammonium persulfate, and a catalyst like N,N,N’,N’-tetraethylmethylenediamine (TEMED). A distinct advantage of polyacrylamide gel systems is that by ...