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IJBB Vol.44(2) [April 2007] >


Title: Purification of protein from a crude mixture through SDS-PAGE transfer method
Authors: Bhattacharyya, Dipankar
Basu, Arindam
Sen, Parimal C
Keywords: SDS-PAGE
Coomassie blue and ZnSO₄ staining
Gel transfer
Protein purification
Issue Date: Apr-2007
Publisher: CSIR
Abstract: SDS-polyacrylamide gel electrophoresis (SDS-PAGE) transfer method was used for purification and enrichment of the protein from crude sample. Coomassie blue/ZnSO₄ stained protein band(s) containing intact polyacrylamide gel were loaded on to another polyacrylamide gel either alone or as pooled gel bands. Two/three bands were combined together and arranged tightly over one another, sealed with stacking gel and ran in another gel, which was quite useful for enrichment and purification of a particular protein from a complex mixture. Recovery of protein by gel transfer method was found to be 70% in case of ZnSO₄ staining, whereas around 30% recovery was possible, following Coomassie blue staining. The method described here for purification of protein(s) from a complex mixture, following gel transfer procedure could be useful for further characterization of the desired protein.
Page(s): 122-125
ISSN: 0301-1208
Source:IJBB Vol.44(2) [April 2007]

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