Conformation and dynamics of biopharmaceuticals: Transition of mass spectrometry-based tools from academe to industry |
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Authors: | Igor A. Kaltashov Cedric E. Bobst Rinat R. Abzalimov Steven A. Berkowitz Damian Houde |
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Affiliation: | (1) Department of Chemistry, University of Massachusetts-Amherst, 710 North Pleasant Street, Amherst, MA 01003, USA;(2) Department of Polymer Science and Engineering, University of Massachusetts at Amherst, 120 Governors Drive, Amherst, MA 01003, USA |
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Abstract: | Mass spectrometry plays a very visible role in biopharmaceutical industry, although its use in development, characterization, and quality control of protein drugs is mostly limited to the analysis of covalent structure (amino acid sequence and post-translational modifications). Despite the centrality of protein conformation to biological activity, stability, and safety of biopharmaceutical products, the expanding arsenal of mass spectrometry-based methods that are currently available to probe higher order structure and conformational dynamics of biopolymers did not, until recently, enjoy much attention in the industry. This is beginning to change as a result of recent work demonstrating the utility of these experimental tools for various aspects of biopharmaceutical product development and manufacturing. In this work, we use a paradigmatic protein drug interferon β-1a as an example to illustrate the utility of mass spectrometry as a powerful tool not only to assess the integrity of higher order structure of a protein drug, but also to predict consequences of its degradation at a variety of levels. |
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