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Methods and apparatus for gel-free qualitative and quantitative proteome analysis, and uses therefore

  • US 6,908,740 B2
  • Filed: 03/21/2003
  • Issued: 06/21/2005
  • Est. Priority Date: 03/22/2001
  • Status: Expired due to Term
First Claim
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1. A method for the isolation of a subset of peptides out of a protein peptide mixture, comprising the steps of:

  • (a) separating the protein peptide mixture into fractions of peptides via chromatography;

    (b) chemically, or enzymatically, or chemically and enzymatically, altering at least one amino acid of at least one of the peptides in each fraction, thereby generating a subset of altered peptides; and

    (c) isolating said altered or flagged peptides out of each fraction via chromatography, wherein the chromatography of steps (a) and (c) is performed with the same type of chromatography.

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