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Intact protein expression spectrometry



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Intact protein expression spectrometry (IPEx) is a label-free quantitation approach in mass spectrometry under development by the analytical chemistry group at the United States Food and Drug Administration Center for Food Safety and Applied Nutrition and elsewhere. Intact proteins are analyzed by an LCMS instrument, usually a quadrupole time-of-flight in profile mode, and the full protein profile is determined and quantified using data reduction software. Early results are very encouraging. In one study, two groups of treatment replicates from mammalian samples (different organisms with similar treatment histories, but not technical replicates) show dozens of low CV protein biomarkers, suggesting that IPEx is a viable technology for studying protein expression. [1]

See also

References

  1. ^ Scholl, PF, An intact protein LC/MS strategy for serum biomarker development: Biomarkers of hepatic responsiveness to chemopreventive treatment with the triterpenoid CDDO-Im, Abstract, TOA 8:35 a.m. ASMS Conference, 2007.
 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Intact_protein_expression_spectrometry". A list of authors is available in Wikipedia.
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