Explanatory chapter: troubleshooting protein expression: what to do when the protein is not soluble
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Updated: May 1, 2026

Recombinant Protein Expression for Structural Biology in HEK 293F Suspension Cells: A Novel and Accessible Approach
Published on: October 16, 2014
Krisna C Duong-Ly1, Sandra B Gabelli1
1Department of Biophysics and Biophysical Chemistry, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Abstract:
Production of soluble protein remains a bottleneck in the biochemistry and structural biology fields. Unfortunately, there is no 'magic bullet' that solves all solubility problems. The following is a protocol to test whether a protein expressed recombinantly is soluble, and possible strategies to circumvent insolubility issues.
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