Crystal structure-based virtual screening for fragment-like ligands of the human histamine H 1 receptor
Research output: Contribution to journal › Journal article › Research › peer-review
Chris De Graaf, Albert J. Kooistra, Henry F. Vischer, Vsevolod Katritch, Martien Kuijer, Mitsunori Shiroishi, So Iwata, Tatsuro Shimamura, Raymond C. Stevens, Iwan J P De Esch, Rob Leurs
The recent crystal structure determinations of druggable class A G protein-coupled receptors (GPCRs) have opened up excellent opportunities in structure-based ligand discovery for this pharmaceutically important protein family. We have developed and validated a customized structure-based virtual fragment screening protocol against the recently determined human histamine H 1 receptor (H 1R) crystal structure. The method combines molecular docking simulations with a protein-ligand interaction fingerprint (IFP) scoring method. The optimized in silico screening approach was successfully applied to identify a chemically diverse set of novel fragment-like (≥22 heavy atoms) H 1R ligands with an exceptionally high hit rate of 73%. Of the 26 tested fragments, 19 compounds had affinities ranging from 10 μM to 6 nM. The current study shows the potential of in silico screening against GPCR crystal structures to explore novel, fragment-like GPCR ligand space.
|Journal||Journal of Medicinal Chemistry|
|Number of pages||12|
|Publication status||Published - 8 Dec 2011|