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The use of fast photochemical oxidation of proteins coupled with mass spectrometry in protein therapeutics discovery and development.

07:00 EST 21st December 2018 | BioPortfolio

Summary of "The use of fast photochemical oxidation of proteins coupled with mass spectrometry in protein therapeutics discovery and development."

Structural analysis of protein therapeutics is a challenging task owing to complexities associated with large molecular size and 3D structures. Recent advances in fast photochemical oxidation of proteins (FPOP) coupled with mass spectrometry (MS) have provided a means to characterize higher order structure (HOS) of protein therapeutics in solution. In this review, the utility of FPOP-MS in protein therapeutics discovery and development is presented, focusing on the principles and applications of epitope mapping for target-protein-protein-therapeutics interactions and biopharmaceutical HOS comparison studies. Future trends in the application of FPOP-MS in protein therapeutics characterization are also described.

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Name: Drug discovery today
ISSN: 1878-5832
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Medical and Biotech [MESH] Definitions

A mass spectrometric technique that is used for the analysis of a wide range of biomolecules, such as glycoalkaloids, glycoproteins, polysaccharides, and peptides. Positive and negative fast atom bombardment spectra are recorded on a mass spectrometer fitted with an atom gun with xenon as the customary beam. The mass spectra obtained contain molecular weight recognition as well as sequence information.

A mass spectrometry technique using two (MS/MS) or more mass analyzers. With two in tandem, the precursor ions are mass-selected by a first mass analyzer, and focused into a collision region where they are then fragmented into product ions which are then characterized by a second mass analyzer. A variety of techniques are used to separate the compounds, ionize them, and introduce them to the first mass analyzer. For example, for in GC-MS/MS, GAS CHROMATOGRAPHY-MASS SPECTROMETRY is involved in separating relatively small compounds by GAS CHROMATOGRAPHY prior to injecting them into an ionization chamber for the mass selection.

A mass spectrometry technique used for analysis of nonvolatile compounds such as proteins and macromolecules. The technique involves preparing electrically charged droplets from analyte molecules dissolved in solvent. The electrically charged droplets enter a vacuum chamber where the solvent is evaporated. Evaporation of solvent reduces the droplet size, thereby increasing the coulombic repulsion within the droplet. As the charged droplets get smaller, the excess charge within them causes them to disintegrate and release analyte molecules. The volatilized analyte molecules are then analyzed by mass spectrometry.

A microanalytical technique combining mass spectrometry and gas chromatography for the qualitative as well as quantitative determinations of compounds.

An analytical method used in determining the identity of a chemical based on its mass using mass analyzers/mass spectrometers.

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