Thermo Scientific Prestained Protein Molecular Weight Marker is a mixture of six blue-stained natural proteins (20 to 120 kDa) for use as size standards in protein electrophoresis (SDS-PAGE). The protein standards are supplied in a ready-to-use format for direct loading onto gels; no need to heat, reduce, or add sample buffer prior to use.

Component proteins

• Beta-galactosidase (120 kDa)
• Bovine serum albumin (85 kDa)
• Ovalbumin (50 kDa)
• Cardonic anhydrase (35 kDa)
• Beta-lactoglobulin (25 kDa)
• Lysozyme (20 kDa)

Applications

• Monitoring protein migration during SDS-polyacrylamide gel electrophoresis.
• Monitoring protein transfer onto membranes after western blotting
• Sizing of proteins on SDS-polyacrylamide gels and western blots