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Updated: Jul 5, 2026

Recombinant Protein Expression for Structural Biology in HEK 293F Suspension Cells: A Novel and Accessible Approach
Published on: October 16, 2014
Characterizing recombinant proteins using HPLC gel filtration and mass spectrometry
G E Begg1, S L Harper, D W Speicher
1The Wistar Institute, Philadelphia, Pennsylvania, USA.
Abstract:
Recombinant proteins are subject to many forms of heterogeneity, including aggregation, proteolytic degradation, chemical modification, mutation, and incorrect translation. This unit describes methods for the detection and identification of these problems using analytical HPLC gel filtration and MALDI-MS. Preliminary characterization of recombinants is necessary before the structure or function of the protein can be investigated.
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