Affinity tags in protein purification and peptide enrichment: An overview

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

10 Citations (Scopus)


The reversible interaction between an affinity ligand and a complementary receptor has been widely explored in purification systems for several biomolecules. The development of tailored affinity ligands highly specific towards particular target biomolecules is one of the options in affinity purification systems. However, both genetic and chemical modifications on proteins and peptides widen the application of affinity ligand-tag receptor pairs towards universal capture and purification strategies. In particular, this chapter will focus on two case studies highly relevant for biotechnology and biomedical areas, namely, the affinity tags and receptors employed on the production of recombinant fusion proteins and the chemical modification of phosphate groups on proteins and peptides and the subsequent specific capture and enrichment, a mandatory step before further proteomic analysis.

Original languageEnglish
Title of host publicationProtein Downstream Processing
Subtitle of host publicationDesign, Development and Application of High and Low-Resolution Methods
EditorsNikolaos E. Labrou
PublisherHumana Press
Number of pages22
ISBN (Electronic)978-1-62703-977-2
ISBN (Print)978-1-62703-976-5
Publication statusPublished - 17 Feb 2014

Publication series

NameMethods in Molecular Biology
PublisherHumana Press
ISSN (Print)1064-3745


  • Affinity Labels
  • Amino Acid Sequence
  • Molecular Sequence Data
  • Peptides
  • Proteins
  • Journal Article
  • Research Support, Non-U.S. Gov't
  • Review


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