Related Experiment Video
Updated: Jun 15, 2026

Recombinant Protein Expression for Structural Biology in HEK 293F Suspension Cells: A Novel and Accessible Approach
Published on: October 16, 2014
Recombinant murine growth hormone from E. coli inclusion bodies: expression, high-pressure solubilization and
Amber Haynes Fradkin1, Carl S Boand, Stephen P Eisenberg
1Dept. of Chemical Engineering, University of Colorado at Boulder, Boulder, CO 80309, USA.
Abstract:
We expressed recombinant murine growth hormone (rmGH) in E. coli as a cost-effective way to produce large quantities (gram scale) of the protein for use in murine studies of immunogenicity to therapeutic proteins. High hydrostatic pressure was used to achieve high solubility and high refolding yields of rmGH protein produced in E. coli inclusion bodies. A two-step column purification protocol was used to produce 99% pure monomeric rmGH. Secondary and tertiary structures of purified rmGH were investigated using circular dichroism and 2D-UV spectroscopy. The purified rmGH produced was found to be biologically active in hypophysectomized rats.

