Polyacrylamide gel electrophoresis in vertical, inverse and double-crossing gradients of soluble polymers
1992
The presence of soluble dextrans, methylcellulose and polyethylene glycol polymers incorporated into vertical sodium dodecyl sulfate (SDS)-polyacrylamide slabs during electrophoresis can have a pronounced effect on protein separations. The effects of various standard and inverse gradients of polymers on the electrophoretic mobility of marker proteins in 10%T, 2.66%C Laemmli-style SDS gels, and the effects of simultaneous pore size and polymer gradients were investigated. These experiments demonstrate that the inclusion of polymers is a new, additional parameter that can be useful in resolving complex mixtures of proteins.
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