Quantitative Peptidomics: General Considerations

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Peptidomics is the detection and identification of the peptides present in a sample, and quantitative peptidomics provides additional information about the amounts of these peptides. It is possible to perform absolute quantitation of peptide levels in which the biological sample is compared to synthetic standards of each peptide. More commonly, relative quantitation is performed to compare peptide levels between two or more samples. Relative quantitation can measure differences between all peptides that are detectable, which can exceed 1000 peptides in a complex sample. In this chapter, various techniques used for quantitative peptidomics are described along with discussion of the advantages and disadvantages of each approach. A guide to selecting the optimal quantitative approach is provided, based on the goals of the experiment and the resources that are available.

Original languageEnglish (US)
Title of host publicationMethods in Molecular Biology
PublisherHumana Press Inc.
Pages89-108
Number of pages20
DOIs
StatePublished - 2024

Publication series

NameMethods in Molecular Biology
Volume2758
ISSN (Print)1064-3745
ISSN (Electronic)1940-6029

Keywords

  • DiLeu
  • Formaldehyde
  • Isobaric tags
  • Isotopic label
  • Label-free quantitation
  • iTRAQ

ASJC Scopus subject areas

  • Molecular Biology
  • Genetics

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