Protein molecular weight marker is a mixture of individually purified proteins mixed to give bands of approximately equal intensity when electrophoresed on a sodium dodecyl sulphate-polyacrylamide gel (SDS-PAGE). The marker is supplied in 10 mM Phosphate buffer (pH 7.0), 0.15 M KCl and 50% glycerol. The protein, their respective molecular weights (MW) are as follows.

Protein                                           MW (Da)
Myosin, Rabbit Muscle               205,000
Phosphorylase b                          97,400
Bovine Serum Albumin              66,000
Ovalbumin                                   43,000
Carbonic Anhydrase                   29,000
Soyabean Trypsin Inhibitor      20,100
Lysozyme                                     14,300
Aprotinin                                       6,500
Insulin (alpha and beta chains)  3,500

Store: -20°C