Structural basis of ligand selectivity and disease mutations in cysteinyl leukotriene receptors

Nat Commun. 2019 Dec 6;10(1):5573. doi: 10.1038/s41467-019-13348-2.


Cysteinyl leukotriene G protein-coupled receptors CysLT1 and CysLT2 regulate pro-inflammatory responses associated with allergic disorders. While selective inhibition of CysLT1R has been used for treating asthma and associated diseases for over two decades, CysLT2R has recently started to emerge as a potential drug target against atopic asthma, brain injury and central nervous system disorders, as well as several types of cancer. Here, we describe four crystal structures of CysLT2R in complex with three dual CysLT1R/CysLT2R antagonists. The reported structures together with the results of comprehensive mutagenesis and computer modeling studies shed light on molecular determinants of CysLTR ligand selectivity and specific effects of disease-related single nucleotide variants.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Asthma / genetics
  • Asthma / metabolism
  • Computer Simulation
  • Crystallography, X-Ray
  • HEK293 Cells
  • Humans
  • Leukotriene D4 / metabolism
  • Ligands
  • Models, Molecular
  • Molecular Docking Simulation
  • Mutagenesis
  • Mutation*
  • Protein Conformation
  • Protein Engineering
  • Receptors, Leukotriene / chemistry*
  • Receptors, Leukotriene / drug effects
  • Receptors, Leukotriene / genetics*
  • Sf9 Cells


  • Ligands
  • Receptors, Leukotriene
  • Leukotriene D4
  • cysteinyl leukotriene receptor 2
  • leukotriene D4 receptor