Function-specific virtual screening for GPCR ligands using a combined scoring method
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Function-specific virtual screening for GPCR ligands using a combined scoring method. / Kooistra, Albert J.; Vischer, Henry F.; McNaught-Flores, Daniel; Leurs, Rob; De Esch, Iwan J.P.; De Graaf, Chris.
In: Scientific Reports, Vol. 6, 28288, 24.06.2016.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Function-specific virtual screening for GPCR ligands using a combined scoring method
AU - Kooistra, Albert J.
AU - Vischer, Henry F.
AU - McNaught-Flores, Daniel
AU - Leurs, Rob
AU - De Esch, Iwan J.P.
AU - De Graaf, Chris
PY - 2016/6/24
Y1 - 2016/6/24
N2 - The ability of scoring functions to correctly select and rank docking poses of small molecules in protein binding sites is highly target dependent, which presents a challenge for structure-based drug discovery. Here we describe a virtual screening method that combines an energy-based docking scoring function with a molecular interaction fingerprint (IFP) to identify new ligands based on G protein-coupled receptor (GPCR) crystal structures. The consensus scoring method is prospectively evaluated by: 1) the discovery of chemically novel, fragment-like, high affinity histamine H1 receptor (H1R) antagonists/inverse agonists, 2) the selective structure-based identification of ß2-adrenoceptor (ß2R) agonists, and 3) the experimental validation and comparison of the combined and individual scoring approaches. Systematic retrospective virtual screening simulations allowed the definition of scoring cut-offs for the identification of H1R and ß2R ligands and the selection of an optimal ß-adrenoceptor crystal structure for the discrimination between ß2R agonists and antagonists. The consensus approach resulted in the experimental validation of 53% of the ß2R and 73% of the H1R virtual screening hits with up to nanomolar affinities and potencies. The selective identification of ß2R agonists shows the possibilities of structure-based prediction of GPCR ligand function by integrating protein-ligand binding mode information.
AB - The ability of scoring functions to correctly select and rank docking poses of small molecules in protein binding sites is highly target dependent, which presents a challenge for structure-based drug discovery. Here we describe a virtual screening method that combines an energy-based docking scoring function with a molecular interaction fingerprint (IFP) to identify new ligands based on G protein-coupled receptor (GPCR) crystal structures. The consensus scoring method is prospectively evaluated by: 1) the discovery of chemically novel, fragment-like, high affinity histamine H1 receptor (H1R) antagonists/inverse agonists, 2) the selective structure-based identification of ß2-adrenoceptor (ß2R) agonists, and 3) the experimental validation and comparison of the combined and individual scoring approaches. Systematic retrospective virtual screening simulations allowed the definition of scoring cut-offs for the identification of H1R and ß2R ligands and the selection of an optimal ß-adrenoceptor crystal structure for the discrimination between ß2R agonists and antagonists. The consensus approach resulted in the experimental validation of 53% of the ß2R and 73% of the H1R virtual screening hits with up to nanomolar affinities and potencies. The selective identification of ß2R agonists shows the possibilities of structure-based prediction of GPCR ligand function by integrating protein-ligand binding mode information.
UR - http://www.scopus.com/inward/record.url?scp=84975721733&partnerID=8YFLogxK
U2 - 10.1038/srep28288
DO - 10.1038/srep28288
M3 - Journal article
C2 - 27339552
AN - SCOPUS:84975721733
VL - 6
JO - Scientific Reports
JF - Scientific Reports
SN - 2045-2322
M1 - 28288
ER -
ID: 199352130