作者
Santhosh Kumar Nagarajan, Sathya Babu, Seema A Kulkarni, Aanand Vadivelu, Panneer Devaraju, Honglae Sohn, Thirumurthy Madhavan
发表日期
2021/4/7
期刊
Scientific Reports
卷号
11
期号
1
页码范围
7677
出版商
Nature Publishing Group UK
简介
Somatostatin receptor 2 (SSTR2) is a G-protein coupled receptor (GPCR) that controls numerous cellular processes including cell-to-cell signaling. In this study, we report how the lipid and ligand molecules influence the conformational dynamics of the membrane-bound SSTR2. Molecular simulations of different holo and apoenzyme complexes of SSTR2 in the presence and absence of a lipid bilayer were performed, observed, and correlated with previously reported studies. We identified the important SSTR2 residues that take part in the formation of the SSTR2-ligand complex. On analyzing the molecular simulation trajectories, we identified that the residue D3.32 is crucial in determining the bioactive conformation of SSTR2 ligands in the binding site. Based on the results, we suggest that designing a novel SSTR2 ligand with an H-bond donor group at the R1 position, and hydrophobic groups at R2 and R3 might …
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