Purification, crystallization and drug screening of the IRAK pseudokinases

Sven M. Lange (Lead / Corresponding author), Yogesh Kulathu

Research output: Chapter in Book/Report/Conference proceedingChapter (peer-reviewed)peer-review

Abstract

Pseudokinases are emerging as critical components of cell signaling pathways. Consequently, the ability to obtain large quantities of pure protein for structural characterization and drug discovery efforts has become essential for the study of these proteins. Small molecules binding to pseudokinases may induce allosteric changes and serve as valuable tools to study the physiological roles of these "dead" enzymes. The IRAK family of kinases are key components of the innate immune response and the active IRAK family members, IRAK-1 and -4, have been extensively studied. However, the other two IRAKs, IRAK-2 and IRAK-3, are classified as pseudokinases and their detailed functions and roles remain to be described. In this chapter, we present comprehensive protocols for the purification of IRAKs, the crystallization of the pseudokinase domain of IRAK3, and a high-throughput drug screening pipeline using thermal shift and biolayer-interferometry assays to identify small molecule binders.

Original languageEnglish
Title of host publicationPseudokinases
EditorsNatalia Jura, James M. Murphy
PublisherAcademic Press
Chapter5
Pages101-121
Number of pages21
Volume667
ISBN (Print)9780323915410
DOIs
Publication statusPublished - 4 May 2022

Publication series

NameMethods in Enzymology
ISSN (Print)0076-6879

Keywords

  • Crystallization
  • Drug Evaluation, Preclinical
  • Immunity, Innate
  • Signal Transduction
  • Protein crystallization
  • Protein purification
  • High-throughput screening
  • Innate immunity
  • IRAK3
  • Cell signaling
  • Biolayer-interferometry (BLI)
  • Interleukin-1 receptor (IL1R)
  • IRAK2
  • Toll-like receptor (TLR)
  • Pseudokinases
  • Drug discovery
  • Thermal shift assay

ASJC Scopus subject areas

  • Molecular Biology
  • Biochemistry

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