Abstract
Escherichia coli has been most widely used for production of the recombinant proteins.
Over-expression of the recombinant proteins is the mainspring of the inclusion bodies formation.
The refolding of these proteins into bioactive forms is cumbersome and partly time-consuming. In
the present study, we reviewed and discussed most issues regarding the recovery of “classical inclusion
bodies” by focusing on our previous experiences. Performing proper methods of expression,
solubilization, refolding and final purification of these proteins, would make it possible to recover
higher amounts of proteins into the native form with appropriate conformation. Generally, providing
mild conditions and proper refolding buffers, would lead to recover more than 40% of inclusion
bodies into bioactive and native conformation.
Keywords:
Inclusion body, mild solubilization, native-like secondary structure, protein refolding, purification, recombinant expression.
Graphical Abstract
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