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Staining Proteins in Gels

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Date 2008 Apr 25
PMID 18432935
Citations 11
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Abstract

This unit describes protocols for detecting protein in a gel by either Coomassie blue, silver or fluorescent staining. Alternate rapid staining procedures are provided for each method and a support protocol describes how to photograph stained gels. Fluorescent staining (e.g., with SYPRO Orange or Red) is described as a popular alternative to traditional staining procedures, mainly because it is more sensitive than Coomassie staining, and often as sensitive as silver staining. Staining of proteins in SDS-polyacrylamide gels is described, and an alternate protocol details variations in the procedure for proteins in nondenaturing gels. A final support protocol describes the photography of fluorescently stained proteins.

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