title: Exploring 3D structure of human gonadotropin hormone receptor at antagonist state using homology modeling, molecular dynamic simulation, and cross-docking studies.
abstract: Human gonadotropin hormone receptor, a G-protein coupled receptor, is the target of many medications used in fertility disorders. Obtaining more structural information about the receptor could be useful in many studies related to drug design. In this study, the structure of human gonadotropin receptor was subjected to homology modeling studies and molecular dynamic simulation within a DPPC lipid bilayer for 100 ns. Several frames were thereafter extracted from simulation trajectories representing the receptor at different states. In order to find a proper model of the receptor at the antagonist state, all frames were subjected to cross-docking studies of some antagonists with known experimental values (Ki). Frame 194 revealed a reasonable correlation between docking calculated energy scores and experimental activity values (|r| = 0.91). The obtained correlation was validated by means of SSLR and showed the presence of no chance correlation for the obtained model. Different structural features reported for the receptor, such as two disulfide bridges and ionic lock between GLU90 and LYS 121 were also investigated in the final model.
authors: Department of Medicinal Chemistry, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran. asakhteman@sums.ac.ir.|Medicinal Chemistry and Natural Products Research Center, Shiraz University of Medical Sciences, Shiraz, Iran. asakhteman@sums.ac.ir.
authors: Amirhossein
authors: A
authors: Sakhteman
authors: Shahrekord University of Medical Sciences, Shahrekord, Iran.
authors: Minasadat
authors: M
authors: Khoddami
authors: Department of Biotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran.|Pharmaceutical Sciences Research Center, Faculty of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran.
authors: Manica
authors: M
authors: Negahdaripour
authors: Department of Biotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran.|Pharmaceutical Sciences Research Center, Faculty of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran.
authors: Arash
authors: A
authors: Mehdizadeh
authors: Department of Biotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran.|Pharmaceutical Sciences Research Center, Faculty of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran.
authors: Mohsen
authors: M
authors: Tatar
authors: Department of Biotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran.|Pharmaceutical Sciences Research Center, Faculty of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran.
authors: Younes
authors: Y
authors: Ghasemi
mesh_terms: D006062:Gonadotropins; D006801:Humans; D008024:Ligands; D008958:Models, Molecular; D062105:Molecular Docking Simulation; D056004:Molecular Dynamics Simulation; D011967:Receptors, Gonadotropin / Q000737:chemistry*
chemical_list: D006062:Gonadotropins; D008024:Ligands; D011967:Receptors, Gonadotropin
keywords: Cross-docking simulation; G-protein coupled receptors; Human gonadotropin receptor; Molecular dynamic simulation