BenchMark Protein Ladder consists of 15 unstained recombinant proteins ranging in molecular weight from 10 to 220 kDa. The protein standard is supplied in a ready-to-use format for direct loading onto gels; no need to heat, reduce, or add sample buffer prior to use.
Two vials of 250 µl each are provided in loading buffer consisting of 50 mM Tris-HCl (pH 6.8), 2 mM EDTA, 10 mM DTT, 2% (w/v) SDS, 10% (w/v) glycerol, 0.01% (w/v) bromophenol blue. Store at -20°C. Avoid repeated freezing and thawing.