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Total Protein Extraction and 2-D Gel Electrophoresis Methods for Burkholderia Species
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Total Protein Extraction and 2-D Gel Electrophoresis Methods for Burkholderia Species

Published on: October 15, 2013

An improved sample preparation method for analyzing mycobacterial proteins in two-dimensional gels

D Bisht1, N Singhal, P Sharma

  • 1Department of Biochemistry, National JALMA Institute for Leprosy and Other Mycobacterial Diseases (Indian Council of Medical Research), Tajganj, Agra 282 001, India. abd1109@rediffmail.com

Biochemistry. Biokhimiia
|July 17, 2007
PubMed

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Two-dimensional Gel Electrophoresis01:22

Two-dimensional Gel Electrophoresis

Two-dimensional gel electrophoresis is a high-resolution protein separation method first introduced by O' Farrell and Klose in 1975. This method involves protein separation by two dimensions, mass and charge, making it more accurate than one-dimensional gel electrophoresis.
The first dimension separation uses the isoelectric focusing or IEF technique performed on immobilized pH gradient (IPG) strips that separate proteins according to their isoelectric points.
Biological samples, such as  cells...
SDS-PAGE01:27

SDS-PAGE

Gel electrophoresis is a method that separates biological macromolecules like nucleic acids or proteins by forcing them to pass through a gel matrix under an electric field.
A variation of gel electrophoresis, termed  polyacrylamide gel electrophoresis (PAGE), is commonly used for separating proteins according to their molecular size by passing them through a polyacrylamide gel. Because of the varying charges associated with amino acid side chains, PAGE can be used to separate intact proteins...