Importance

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Abstract

The present invention relates to a method for labeling proteins in a sample prior to separation thereof using a protein reactive dye, comprising the following steps a) dissolving the proteins in, or diluting the proteins with, or exchanging an existing protein buffer with, a labeling buffer comprising a dye-reactant (reacting with the protein reactive dye) to form a mixture, b) adding protein reactive dye to said mixture, c) incubating said mixture wherein the labeling of said proteins with said dye can be completed within 5 minutes, and wherein both the proteins and the dye-reactant form measurable reaction products with said dye, and d) separating said reaction products. The invention also relates to a kit for pre-labeling of proteins, comprising a labeling buffer, a dye, a molecular weight marker, and a sample gel loading buffer.

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First Claim