The proteins in the ProSieve™ Color 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™ Color 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.