Methods for protein refolding
First Claim
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1. A method for refolding a protein comprising covalently modifying a denatured protein with a nonproteinaceous polymer and renaturing the covalently modified protein, wherein the method comprises removing the nonproteinaceous polymer after renaturing the covalently modified protein.
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Abstract
Provided herein are methods for refolding proteins. The methods involve covalently modifying a denatured protein with a nonproteinaceous polymer and then renaturing the modified protein.
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27 Claims
- 1. A method for refolding a protein comprising covalently modifying a denatured protein with a nonproteinaceous polymer and renaturing the covalently modified protein, wherein the method comprises removing the nonproteinaceous polymer after renaturing the covalently modified protein.
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19. A method for producing a protein, comprising:
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a) expressing a recombinant protein in bacterial cells, b) isolating the recombinant protein from inclusion bodies, c) covalently modifying the recombinant protein with PEG, d) renaturing the pegylated recombinant protein, and e) removing the PEG from the recombinant protein. - View Dependent Claims (20)
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- 21. A method for refolding a protein comprising covalently modifying a denatured protein with a nonproteinaceous polymer and renaturing the covalently modified protein, wherein the nonproteinaceous polymer is attached to the protein through a protease cleavable linker.
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24. A method for producing a pegylated protein, comprising:
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a) expressing a recombinant protein in bacterial cells, b) isolating the recombinant protein from inclusion bodies, c) covalently modifying the recombinant protein with PEG, and d) renaturing the pegylated recombinant protein, wherein the PEG is attached to the recombinant protein through a protease cleavable linker. - View Dependent Claims (25)
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26. A method for producing a pegylated protein, comprising:
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a) expressing a recombinant protein in bacterial cells, b) isolating the recombinant protein from inclusion bodies, c) exposing the recombinant protein to a chaotropic agent, d) covalently modifying the recombinant protein with PEG, e) renaturing the pegylated recombinant protein by removing the chaotropic agent, f) purifying the refolded, pegylated, recombinant protein, and g) removing the PEG from the recombinant protein. - View Dependent Claims (27)
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Specification