title: Docking-based virtual screening of potential human P2Y12 receptor antagonists.
abstract: Platelet plays essential roles in hemostasis and its dysregulation can lead to arterial thrombosis. P2Y12 is an important platelet membrane adenosine diphosphate receptor, and its antagonists have been widely developed as anti-coagulation agents. The current P2Y12 inhibitors available in clinical practice have not fully achieved satisfactory anti-thrombotic effects, leaving room for further improvement. To identify new chemical compounds as potential anti-coagulation inhibitors, we constructed a three-dimensional structure model of human P2Y12 by homology modeling based on the recently reported G-protein coupled receptor Meleagris gallopavo β1 adrenergic receptor. Virtual screening of the modeled P2Y12 against three subsets of small molecules from the ZINC database, namely lead-like, fragment-like, and drug-like, identified a number of compounds that might have high binding affinity to P2Y12. Detailed analyses of the top three compounds from each subset with the highest scores indicated that all of these compounds beard a hydrophobic bulk supplemented with a few polar atoms which bound at the ligand binding site via largely hydrophobic interactions with the receptor. This study not only provides a structure model of P2Y12 for rational design of anti-platelet inhibitors, but also identifies some potential chemicals for further development.
authors.affiliation: Department of Cardiology, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai 200040, China.
authors.forename: Hua
authors.initials: H
authors.lastname: Chen
authors.forename: Xianchi
authors.initials: X
authors.lastname: Dong
authors.forename: Minyun
authors.initials: M
authors.lastname: Zhou
authors.forename: Haiming
authors.initials: H
authors.lastname: Shi
authors.forename: Xinping
authors.initials: X
authors.lastname: Luo
mesh_terms: D000595:Amino Acid Sequence; D004353:Drug Evaluation, Preclinical; D006801:Humans; D008024:Ligands; D008969:Molecular Sequence Data; D011487:Protein Conformation; D058921:Purinergic P2Y Receptor Antagonists / Q000494:pharmacology*; D058925:Receptors, Purinergic P2Y12 / Q000737:chemistry / Q000187:drug effects* / Q000378:metabolism; D017386:Sequence Homology, Amino Acid
chemical_list: D008024:Ligands; C548576:P2RY12 protein, human; D058921:Purinergic P2Y Receptor Antagonists; D058925:Receptors, Purinergic P2Y12