PMID- 30463177 OWN - NLM STAT- MEDLINE DCOM- 20190723 LR - 20190723 IS - 1420-3049 (Electronic) IS - 1420-3049 (Linking) VI - 23 IP - 11 DP - 2018 Nov 19 TI - Prediction of GluN2B-CT(1290-1310)/DAPK1 Interaction by Protein(-)Peptide Docking and Molecular Dynamics Simulation. LID - 10.3390/molecules23113018 [doi] LID - 3018 AB - The interaction of death-associated protein kinase 1 (DAPK1) with the 2B subunit (GluN2B) C-terminus of N-methyl-D-aspartate receptor (NMDAR) plays a critical role in the pathophysiology of depression and is considered a potential target for the structure-based discovery of new antidepressants. However, the 3D structures of C-terminus residues 1290(-)1310 of GluN2B (GluN2B-CT(1290-1310)) remain elusive and the interaction between GluN2B-CT(1290-1310) and DAPK1 is unknown. In this study, the mechanism of interaction between DAPK1 and GluN2B-CT(1290-1310) was predicted by computational simulation methods including protein(-)peptide docking and molecular dynamics (MD) simulation. Based on the equilibrated MD trajectory, the total binding free energy between GluN2B-CT(1290-1310) and DAPK1 was computed by the mechanics generalized born surface area (MM/GBSA) approach. The simulation results showed that hydrophobic, van der Waals, and electrostatic interactions are responsible for the binding of GluN2B-CT(1290(-)1310)/DAPK1. Moreover, through per-residue free energy decomposition and in silico alanine scanning analysis, hotspot residues between GluN2B-CT(1290-1310) and DAPK1 interface were identified. In conclusion, this work predicted the binding mode and quantitatively characterized the protein(-)peptide interface, which will aid in the discovery of novel drugs targeting the GluN2B-CT(1290-1310) and DAPK1 interface. FAU - Tu, Gao AU - Tu G AD - Innovative Drug Research and Bioinformatics Group, School of Pharmaceutical Sciences and Collaborative Innovation Center for Brain Science, Chongqing University, Chongqing 401331, China. tugao@cqu.edu.cn. AD - Innovative Drug Research and Bioinformatics Group, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China. tugao@cqu.edu.cn. FAU - Fu, Tingting AU - Fu T AD - Innovative Drug Research and Bioinformatics Group, School of Pharmaceutical Sciences and Collaborative Innovation Center for Brain Science, Chongqing University, Chongqing 401331, China. 20162902031@cqu.edu.cn. AD - Innovative Drug Research and Bioinformatics Group, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China. 20162902031@cqu.edu.cn. FAU - Yang, Fengyuan AU - Yang F AD - Innovative Drug Research and Bioinformatics Group, School of Pharmaceutical Sciences and Collaborative Innovation Center for Brain Science, Chongqing University, Chongqing 401331, China. kristen@cqu.edu.cn. AD - Innovative Drug Research and Bioinformatics Group, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China. kristen@cqu.edu.cn. FAU - Yao, Lixia AU - Yao L AD - Department of Health Sciences Research, Mayo Clinic, Rochester, MN 55905, USA. ballad2006@163.com. FAU - Xue, Weiwei AU - Xue W AUID- ORCID: 0000-0002-3285-0574 AD - Innovative Drug Research and Bioinformatics Group, School of Pharmaceutical Sciences and Collaborative Innovation Center for Brain Science, Chongqing University, Chongqing 401331, China. xueww@cqu.edu.cn. FAU - Zhu, Feng AU - Zhu F AUID- ORCID: 0000-0001-8069-0053 AD - Innovative Drug Research and Bioinformatics Group, School of Pharmaceutical Sciences and Collaborative Innovation Center for Brain Science, Chongqing University, Chongqing 401331, China. zhufeng@cqu.edu.cn. AD - Innovative Drug Research and Bioinformatics Group, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China. zhufeng@cqu.edu.cn. LA - eng GR - 81872798, 21505009/National Natural Science Foundation of China/ GR - cstc2015zdcy-ztzx120003/Innovation Project on Industrial Generic Key Technologies of Chongqing/ GR - 10611CDJXZ238826, 2018CDQYSG0007/Fundamental Research Funds for Central Universities/ PT - Journal Article DEP - 20181119 PL - Switzerland TA - Molecules JT - Molecules (Basel, Switzerland) JID - 100964009 RN - 0 (NR2B NMDA receptor) RN - 0 (Receptors, N-Methyl-D-Aspartate) RN - EC 2.7.11.1 (Death-Associated Protein Kinases) MH - *Death-Associated Protein Kinases MH - Humans MH - Hydrogen Bonding MH - Hydrophobic and Hydrophilic Interactions MH - *Molecular Docking Simulation MH - *Molecular Dynamics Simulation MH - Protein Binding MH - *Receptors, N-Methyl-D-Aspartate MH - Thermodynamics PMC - PMC6278559 OTO - NOTNLM OT - DAPK1-GluN2B peptide OT - MD simulation OT - binding free energy OT - hotspot OT - protein-peptide docking COIS- The authors declare that they have no conflicts of interest to disclose. EDAT- 2018/11/23 06:00 MHDA- 2019/07/25 06:00 PMCR- 2018/11/19 CRDT- 2018/11/23 06:00 PHST- 2018/08/20 00:00 [received] PHST- 2018/11/04 00:00 [revised] PHST- 2018/11/06 00:00 [accepted] PHST- 2018/11/23 06:00 [entrez] PHST- 2018/11/23 06:00 [pubmed] PHST- 2019/07/25 06:00 [medline] PHST- 2018/11/19 00:00 [pmc-release] AID - molecules23113018 [pii] AID - molecules-23-03018 [pii] AID - 10.3390/molecules23113018 [doi] PST - epublish SO - Molecules. 2018 Nov 19;23(11):3018. doi: 10.3390/molecules23113018.