ProSieve™ Colour Protein Markers are an easy method for monitoring protein separation prior to staining, and provide accurate confirmation of protein transfer in Western blotting. Convenient to use; just add water and load. Give a sharp, multi-coloured, readily identifiable band pattern. Suitable for verifying protein transfer following Western blotting.

The proteins in the ProSieve™ Colour Protein Marker have been labeled with 3 different fluorescent dyes and the marker is supplied as a lyophilized solid containing the buffer salts and detergent found in the typical Laemmli buffer system. The ProSieve™ Colour Protein Marker contains 9 proteins with approximate masses of 10, 15, 20, 25, 40, 50, 80, 125, and 190 kDa. Each lot is individually calibrated against a ProSieve™ Unstained Protein Marker.

The ProSieve™ QuadColor™ Protein Marker is a mixture of 12 recombinant, highly purified proteins with molecular weights of 4, 6, 10, 15, 25, 40, 55, 70, 100, 140, 170, 250, and 300 kDa. the proteins are individually prestained using four different dyes, producing a brightly coloured ladder with an easy-to-remember pattern. The ProSieve™ QuadColor™ Protein Marker is ready-to-use: no heating, further dilution or addition of a reducing agent is required before use.

• Ready-to- use - no heating, further dilution or addition of a reducing agent is required before use
• Brightly colored ladder - easy to rember pattern