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  GeneGauge® BL1 Prestained Protein Ladder
BL1 Prestained Protein Ladder (Ready-to-use) is a three-color protein standard with 12 pre-stained proteins covering a wide range of molecular weights from 10 to 245 kDa. Proteins are covalently coupled with a blue chromophore except for two reference bands (one green and one red band at 25 kDa and 75 kDa respectively) when separated on SDS-PAGE (Tris-glycine buffer). The BL1 Prestained Protein Ladder is designed for monitoring protein separation during SDS-polyacrylamide gel electrophoresis, verification of Western transfer efficiency on membranes (PVDF, nylon, or nitrocellulose) and for approximating the size of proteins. The ladder is supplied in gel loading buffer and is ready to use. Use 3 μl or 5 μl per loading for clear visualization during electrophoresis on 15-well or 10-well mini-gels, respectively. Use 1.5~2.5 μl per well for general Western transferring. Apply more for thicker (> 1.5 mm) or larger gel. Storage: 2 weeks at 15 to 30°C; 3 months at 2 to 8°C; Long term at -20°C.
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