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coagulation in SDSPAGE Sample buffer - SDS PAGE (Oct/26/2005 )

DeaR, I m isolating total cell proteins from bacillus for SDS PAGE. The problem i m facing is that when i add the sample buffer into the sample, it coagulates after snap cooling step.


i've encounter this problem few times.
It's because you add not enough laemmli 5X to your protein prep...