Discontinuous native protein gel electrophoresis

Discontinuous electrophoresis on polyacrylamide gel slab.

D ISCOT1XUOUS ELECT1IO1’HORESIS in polyacrylamide rods has been used for separation of serum proteins (1). In spite of satisfactory resolution in tile rod, the technic renhains cumbersome, and comparison of the closely migrating cOnlpoflents inaccurate. Akroyd (2) reported discontinuous electrophoresis On polyacrylamide gel slab, which alleviates many of the difficulties of the rod. We llave co...

System for simplified discontinuous-gradient polyacrylamide-gel electrophoresis.

We describe a modified polyacrylamide gel electrophoresis method with which plasma proteins are excellently resolved in 4 h. We made a three-layer discontinuous gradient gel with concentrations of 80,60, and 45 g of polyacrylamide per liter of tris(hydroxymethyl)aminomethane/ethylenediaminetetraacetic acid/borate buffer, pH 9.2. Time and material needed in the preparation of the gel was greatly...

Separation of Drosophila RNA silencing complexes by native gel electrophoresis.

Two-dimensional blue native/SDS gel electrophoresis of multiprotein complexes.

The two-dimensional blue native/sodium dodecyl sulfate polyacrylamide gel electrophoresis (2D BN/SDS-PAGE) is a method of choice for the investigation of protein complexes. This highly resolvent separation method is unique in that it facilitates the identification of many protein complexes simultaneously. Because of its simplicity and suitability, the 2D BN/SDS-PAGE can be now applied to a wide...

False-negative urine protein electrophoresis by semiautomated gel electrophoresis.

Urine is evaluated by electrophoretic methods both to gather information about the location and degree of damage within the nephron and to detect and quantify monoclonal free light chains (Bence Jones proteins). For many years, urine protein electrophoresis consisted of concentrating the urine (usually 50-fold) followed by manual application of the concentrated sample to a gel. Recently, semiau...