Improvements in two-dimensional gel electrophoresis by utilizing a low cost "in-house" neutral pH sodium dodecyl sulfate-polyacrylamide gel electrophoresis system |
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Authors: | Graham David R M Garnham Christopher P Fu Qin Robbins Jeffrey Van Eyk Jennifer E |
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Institution: | Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21224, USA. |
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Abstract: | Two-dimensional gel electrophoresis (2-DE) is widely used for initial protein separation in proteomics. Commercial products using neutral pH sodium dodecyl sulfate-polyacrylamide gel electrophoresis ((SDS-PAGE)/(Bis (2-hydroxyethyl) imino-tris (hydroxymethyl) methane-HCl, or Bis-Tris)) have greatly improved this technique, but cost and limited sizes restrict their applications. An "in-house" system is presented, resulting in better resolution, separation, and new spot visualization and improved resolution when compared to Tris-HCl gels. Their utility is demonstrated using albumin-depleted serum samples, rabbit heart left ventricle, and human immunodeficiency virus type 1 (HIV-1). |
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