Preparative 2D Gel Electrophoresis with Immobilized pH Gradients: Isoelectric Focusing of Proteins in a Multipurpose Flatbed Electrophoresis Unit

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Abstract

INTRODUCTIONThis protocol describes a method for separating proteins based on their net charge using the technique of isoelectric focusing (IEF) on immobilized pH gradient (IPG) gels. This method serves as the first dimension of the 2D separation. The method described in this protocol utilizes a flatbed unit; however, self-contained instruments for IEF are also available.

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