A One-Step Staining Protocol for In-Gel Fluorescent Visualization of Proteins

Methods Mol Biol. 2018:1853:149-158. doi: 10.1007/978-1-4939-8745-0_18.

Abstract

Native polyacrylamide gel electrophoresis (PAGE) and sodium dodecyl sulfate (SDS)-PAGE are among the most frequently applied techniques in protein analysis. Here we describe a fast one-step method for fluorescent visualization of proteins. Following PAGE, gels are soaked in solution of potassium ferricyanide (100 mM) in 1 M NaOH, and are kept in the dark for 30 min. Gels are then transferred to water and scanned. The sensitivity of the method is comparable with standard Coomassie Brilliant Blue staining.

Keywords: Electrophoresis; Ferricyanide; Fluorescence; PAGE; Staining protocol; Tryptophan.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Electrophoresis, Gel, Two-Dimensional* / methods
  • Fluorescent Dyes* / chemistry
  • Image Processing, Computer-Assisted
  • Optical Imaging
  • Proteins* / analysis
  • Proteins* / chemistry
  • Staining and Labeling* / methods

Substances

  • Fluorescent Dyes
  • Proteins