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Wifling D, Pfleger C, Kaindl J, Ibrahim P, Kling RC, Buschauer A, Gohlke H, Clark T. Basal Histamine H 4 Receptor Activation: Agonist Mimicry by the Diphenylalanine Motif. Chemistry 2019; 25:14613-14624. [PMID: 31498478 PMCID: PMC7687114 DOI: 10.1002/chem.201902801] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 09/08/2019] [Indexed: 12/20/2022]
Abstract
Histamine H4 receptor (H4 R) orthologues are G-protein-coupled receptors (GPCRs) that exhibit species-dependent basal activity. In contrast to the basally inactive mouse H4 R (mH4 R), human H4 R (hH4 R) shows a high degree of basal activity. We have performed long-timescale molecular dynamics simulations and rigidity analyses on wild-type hH4 R, the experimentally characterized hH4 R variants S179M, F169V, F169V+S179M, F168A, and on mH4 R to investigate the molecular nature of the differential basal activity. H4 R variant-dependent differences between essential motifs of GPCR activation and structural stabilities correlate with experimentally determined basal activities and provide a molecular explanation for the differences in basal activation. Strikingly, during the MD simulations, F16945.55 dips into the orthosteric binding pocket only in the case of hH4 R, thus adopting the role of an agonist and contributing to the stabilization of the active state. The results shed new light on the molecular mechanism of basal H4 R activation that are of importance for other GPCRs.
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Affiliation(s)
- David Wifling
- Department of Pharmaceutical/Medicinal Chemistry IIInstitute of PharmacyUniversity of RegensburgUniversitätsstr. 3193053RegensburgGermany
| | - Christopher Pfleger
- Institute for Pharmaceutical and Medicinal ChemistryHeinrich Heine University DüsseldorfUniversitätsstr. 140225DüsseldorfGermany
| | - Jonas Kaindl
- Computer Chemistry CenterDepartment of Chemistry and PharmacyUniversity of Erlangen-NürnbergNägelsbachstr. 2591052ErlangenGermany
| | - Passainte Ibrahim
- Computer Chemistry CenterDepartment of Chemistry and PharmacyUniversity of Erlangen-NürnbergNägelsbachstr. 2591052ErlangenGermany
| | - Ralf C. Kling
- Computer Chemistry CenterDepartment of Chemistry and PharmacyUniversity of Erlangen-NürnbergNägelsbachstr. 2591052ErlangenGermany
| | - Armin Buschauer
- Department of Pharmaceutical/Medicinal Chemistry IIInstitute of PharmacyUniversity of RegensburgUniversitätsstr. 3193053RegensburgGermany
| | - Holger Gohlke
- Institute for Pharmaceutical and Medicinal ChemistryHeinrich Heine University DüsseldorfUniversitätsstr. 140225DüsseldorfGermany
- John von Neumann Institute for Computing (NIC)Jülich Supercomputing Centre (JSC) &Institute for Complex Systems—Structural Biochemistry (ICS 6)Forschungszentrum Jülich GmbHWilhelm-Johnen-Str.52425JülichGermany
| | - Timothy Clark
- Computer Chemistry CenterDepartment of Chemistry and PharmacyUniversity of Erlangen-NürnbergNägelsbachstr. 2591052ErlangenGermany
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2
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Simeth NA, Bause M, Dobmeier M, Kling RC, Lachmann D, Hübner H, Einsiedel J, Gmeiner P, König B. NTS2-selective neurotensin mimetics with tetrahydrofuran amino acids. Bioorg Med Chem 2017; 25:350-359. [DOI: 10.1016/j.bmc.2016.10.039] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Revised: 10/20/2016] [Accepted: 10/31/2016] [Indexed: 01/10/2023]
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3
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Milanos L, Saleh N, Kling RC, Kaindl J, Tschammer N, Clark T. Identification of Two Distinct Sites for Antagonist and Biased Agonist Binding to the Human Chemokine Receptor CXCR3. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201607831] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Lampros Milanos
- Computer-Chemie-Centrum; Friedrich-Alexander-Universität Erlangen-Nürnberg; Nägelsbachstr. 25 91052 Erlangen Germany
- Department of Chemistry and Pharmacy; Medicinal Chemistry; Emil Fischer Center; Friedrich-Alexander-Universität Erlangen-Nürnberg; Schuhstraße 19 91052 Erlangen Germany
| | - Noureldin Saleh
- Computer-Chemie-Centrum; Friedrich-Alexander-Universität Erlangen-Nürnberg; Nägelsbachstr. 25 91052 Erlangen Germany
| | - Ralf C. Kling
- Computer-Chemie-Centrum; Friedrich-Alexander-Universität Erlangen-Nürnberg; Nägelsbachstr. 25 91052 Erlangen Germany
- Institute of Physiology; Paracelsus Medical University Nürnberg; Prof.-Ernst-Nathan-Str. 1 90419 Nürnberg Germany
| | - Jonas Kaindl
- Computer-Chemie-Centrum; Friedrich-Alexander-Universität Erlangen-Nürnberg; Nägelsbachstr. 25 91052 Erlangen Germany
| | - Nuska Tschammer
- Department of Chemistry and Pharmacy; Medicinal Chemistry; Emil Fischer Center; Friedrich-Alexander-Universität Erlangen-Nürnberg; Schuhstraße 19 91052 Erlangen Germany
- Research and Development; NanoTemper Technologies GmbH; Floessergasse 4 81369 München Germany
| | - Timothy Clark
- Computer-Chemie-Centrum; Friedrich-Alexander-Universität Erlangen-Nürnberg; Nägelsbachstr. 25 91052 Erlangen Germany
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4
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Milanos L, Saleh N, Kling RC, Kaindl J, Tschammer N, Clark T. Identification of Two Distinct Sites for Antagonist and Biased Agonist Binding to the Human Chemokine Receptor CXCR3. Angew Chem Int Ed Engl 2016; 55:15277-15281. [DOI: 10.1002/anie.201607831] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Revised: 10/05/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Lampros Milanos
- Computer-Chemie-Centrum; Friedrich-Alexander-Universität Erlangen-Nürnberg; Nägelsbachstr. 25 91052 Erlangen Germany
- Department of Chemistry and Pharmacy; Medicinal Chemistry; Emil Fischer Center; Friedrich-Alexander-Universität Erlangen-Nürnberg; Schuhstraße 19 91052 Erlangen Germany
| | - Noureldin Saleh
- Computer-Chemie-Centrum; Friedrich-Alexander-Universität Erlangen-Nürnberg; Nägelsbachstr. 25 91052 Erlangen Germany
| | - Ralf C. Kling
- Computer-Chemie-Centrum; Friedrich-Alexander-Universität Erlangen-Nürnberg; Nägelsbachstr. 25 91052 Erlangen Germany
- Institute of Physiology; Paracelsus Medical University Nürnberg; Prof.-Ernst-Nathan-Str. 1 90419 Nürnberg Germany
| | - Jonas Kaindl
- Computer-Chemie-Centrum; Friedrich-Alexander-Universität Erlangen-Nürnberg; Nägelsbachstr. 25 91052 Erlangen Germany
| | - Nuska Tschammer
- Department of Chemistry and Pharmacy; Medicinal Chemistry; Emil Fischer Center; Friedrich-Alexander-Universität Erlangen-Nürnberg; Schuhstraße 19 91052 Erlangen Germany
- Research and Development; NanoTemper Technologies GmbH; Floessergasse 4 81369 München Germany
| | - Timothy Clark
- Computer-Chemie-Centrum; Friedrich-Alexander-Universität Erlangen-Nürnberg; Nägelsbachstr. 25 91052 Erlangen Germany
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5
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Manglik A, Lin H, Aryal DK, McCorvy JD, Dengler D, Corder G, Levit A, Kling RC, Bernat V, Hübner H, Huang XP, Sassano MF, Giguère PM, Löber S, Da Duan, Scherrer G, Kobilka BK, Gmeiner P, Roth BL, Shoichet BK. Structure-based discovery of opioid analgesics with reduced side effects. Nature 2016; 537:185-190. [PMID: 27533032 DOI: 10.1038/nature19112] [Citation(s) in RCA: 651] [Impact Index Per Article: 81.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Accepted: 07/14/2016] [Indexed: 12/12/2022]
Abstract
Morphine is an alkaloid from the opium poppy used to treat pain. The potentially lethal side effects of morphine and related opioids-which include fatal respiratory depression-are thought to be mediated by μ-opioid-receptor (μOR) signalling through the β-arrestin pathway or by actions at other receptors. Conversely, G-protein μOR signalling is thought to confer analgesia. Here we computationally dock over 3 million molecules against the μOR structure and identify new scaffolds unrelated to known opioids. Structure-based optimization yields PZM21-a potent Gi activator with exceptional selectivity for μOR and minimal β-arrestin-2 recruitment. Unlike morphine, PZM21 is more efficacious for the affective component of analgesia versus the reflexive component and is devoid of both respiratory depression and morphine-like reinforcing activity in mice at equi-analgesic doses. PZM21 thus serves as both a probe to disentangle μOR signalling and a therapeutic lead that is devoid of many of the side effects of current opioids.
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Affiliation(s)
- Aashish Manglik
- Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, California 94305, USA
| | - Henry Lin
- Department of Pharmaceutical Chemistry, University of California, San Francisco, California 94158, USA
| | - Dipendra K Aryal
- Department of Pharmacology, UNC Chapel Hill Medical School, Chapel Hill, North Carolina 27514, USA
| | - John D McCorvy
- Department of Pharmacology, UNC Chapel Hill Medical School, Chapel Hill, North Carolina 27514, USA
| | - Daniela Dengler
- Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Schuhstraße 19, 91052 Erlangen, Germany
| | - Gregory Corder
- Department of Anesthesiology, Perioperative and Pain Medicine, Neurosurgery, Stanford Neurosciences Institute, Stanford University School of Medicine, Stanford, California 94305, USA
| | - Anat Levit
- Department of Pharmaceutical Chemistry, University of California, San Francisco, California 94158, USA
| | - Ralf C Kling
- Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Schuhstraße 19, 91052 Erlangen, Germany.,Institut für Physiologie und Pathophysiologie, Paracelsus Medical University, 90419 Nuremberg, Germany
| | - Viachaslau Bernat
- Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Schuhstraße 19, 91052 Erlangen, Germany
| | - Harald Hübner
- Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Schuhstraße 19, 91052 Erlangen, Germany
| | - Xi-Ping Huang
- Department of Pharmacology, UNC Chapel Hill Medical School, Chapel Hill, North Carolina 27514, USA
| | - Maria F Sassano
- Department of Pharmacology, UNC Chapel Hill Medical School, Chapel Hill, North Carolina 27514, USA
| | - Patrick M Giguère
- Department of Pharmacology, UNC Chapel Hill Medical School, Chapel Hill, North Carolina 27514, USA
| | - Stefan Löber
- Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Schuhstraße 19, 91052 Erlangen, Germany
| | - Da Duan
- Department of Pharmaceutical Chemistry, University of California, San Francisco, California 94158, USA
| | - Grégory Scherrer
- Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, California 94305, USA.,Department of Anesthesiology, Perioperative and Pain Medicine, Neurosurgery, Stanford Neurosciences Institute, Stanford University School of Medicine, Stanford, California 94305, USA
| | - Brian K Kobilka
- Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, California 94305, USA
| | - Peter Gmeiner
- Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Schuhstraße 19, 91052 Erlangen, Germany
| | - Bryan L Roth
- Department of Pharmacology, UNC Chapel Hill Medical School, Chapel Hill, North Carolina 27514, USA
| | - Brian K Shoichet
- Department of Pharmaceutical Chemistry, University of California, San Francisco, California 94158, USA
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6
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Kling RC, Plomer M, Lang C, Banerjee A, Hübner H, Gmeiner P. Development of Covalent Ligand-Receptor Pairs to Study the Binding Properties of Nonpeptidic Neurotensin Receptor 1 Antagonists. ACS Chem Biol 2016; 11:869-75. [PMID: 26808719 DOI: 10.1021/acschembio.5b00965] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The neurotensin receptor NTS1 has been suggested to be of pharmaceutical relevance, as it was found to exert modulatory effects on dopaminergic signal transduction and to be involved in tumor progression. Rational drug design of NTS1 receptor ligands requires molecular insights into the binding behavior of a particular lead compound. Although crystal structures of NTS1 have revealed the molecular determinants of peptide-agonist interactions, the binding mode of small-molecule antagonists remains largely unknown. Employing a disulfide-based tethering approach, we developed covalently binding molecular probes. The ligands 1 and 2 are based on the pharmacophore of the nonpeptidic NTS1 antagonist SR142948A, allowing the formation of a disulfide bond to an engineered cysteine residue of NTS1. The position of the covalent bond between Cys127(2.65) and the ligand was used to predict the binding mode of the covalent antagonist 1 and its parent compound SR142948A by molecular dynamics simulations.
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Affiliation(s)
- Ralf C. Kling
- Department
of Chemistry and Pharmacy, Emil Fischer Center, Friedrich Alexander University, Schuhstr. 19, 91052 Erlangen, Germany
| | - Manuel Plomer
- Department
of Chemistry and Pharmacy, Emil Fischer Center, Friedrich Alexander University, Schuhstr. 19, 91052 Erlangen, Germany
| | - Christopher Lang
- Department
of Chemistry and Pharmacy, Emil Fischer Center, Friedrich Alexander University, Schuhstr. 19, 91052 Erlangen, Germany
| | - Ashutosh Banerjee
- Department
of Chemistry and Pharmacy, Emil Fischer Center, Friedrich Alexander University, Schuhstr. 19, 91052 Erlangen, Germany
| | - Harald Hübner
- Department
of Chemistry and Pharmacy, Emil Fischer Center, Friedrich Alexander University, Schuhstr. 19, 91052 Erlangen, Germany
| | - Peter Gmeiner
- Department
of Chemistry and Pharmacy, Emil Fischer Center, Friedrich Alexander University, Schuhstr. 19, 91052 Erlangen, Germany
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7
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Kling RC, Clark T, Gmeiner P. Comparative MD Simulations Indicate a Dual Role for Arg1323.50 in Dopamine-Dependent D2R Activation. PLoS One 2016; 11:e0146612. [PMID: 26741139 PMCID: PMC4704829 DOI: 10.1371/journal.pone.0146612] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Accepted: 12/18/2015] [Indexed: 12/02/2022] Open
Abstract
Residue Arg3.50 belongs to the highly conserved DRY-motif of class A GPCRs, which is located at the bottom of TM3. On the one hand, Arg3.50 has been reported to help stabilize the inactive state of GPCRs, but on the other hand has also been shown to be crucial for stabilizing active receptor conformations and mediating receptor-G protein coupling. The combined results of these studies suggest that the exact function of Arg3.50 is likely to be receptor-dependent and must be characterized independently for every GPCR. Consequently, we now present comparative molecular-dynamics simulations that use our recently described inactive-state and Gα-bound active-state homology models of the dopamine D2 receptor (D2R), which are either bound to dopamine or ligand-free, performed to identify the function of Arg1323.50 in D2R. Our results are consistent with a dynamic model of D2R activation in which Arg1323.50 adopts a dual role, both by stabilizing the inactive-state receptor conformation and enhancing dopamine-dependent D2R-G protein coupling.
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Affiliation(s)
- Ralf C. Kling
- Department of Chemistry and Pharmacy, Emil Fischer Center, Friedrich Alexander University, Erlangen, Germany
- Department of Chemistry and Pharmacy, Computer Chemistry Center, Friedrich Alexander University, Erlangen, Germany
| | - Timothy Clark
- Department of Chemistry and Pharmacy, Computer Chemistry Center, Friedrich Alexander University, Erlangen, Germany
- Centre for Molecular Design, University of Portsmouth, King Henry Building, Portsmouth, United Kingdom
| | - Peter Gmeiner
- Department of Chemistry and Pharmacy, Emil Fischer Center, Friedrich Alexander University, Erlangen, Germany
- * E-mail:
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Huang W, Manglik A, Venkatakrishnan AJ, Laeremans T, Feinberg EN, Sanborn AL, Kato HE, Livingston KE, Thorsen TS, Kling RC, Granier S, Gmeiner P, Husbands SM, Traynor JR, Weis WI, Steyaert J, Dror RO, Kobilka BK. Structural insights into µ-opioid receptor activation. Nature 2015; 524:315-21. [PMID: 26245379 PMCID: PMC4639397 DOI: 10.1038/nature14886] [Citation(s) in RCA: 645] [Impact Index Per Article: 71.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2015] [Accepted: 06/30/2015] [Indexed: 12/18/2022]
Abstract
Activation of the μ-opioid receptor (μOR) is responsible for the efficacy of the most effective analgesics. To understand the structural basis for μOR activation, we obtained a 2.1 Å X-ray crystal structure of the μOR bound to the morphinan agonist BU72 and stabilized by a G protein-mimetic camelid-antibody fragment. The BU72-stabilized changes in the μOR binding pocket are subtle and differ from those observed for agonist-bound structures of the β2 adrenergic receptor (β2AR) and the M2 muscarinic receptor (M2R). Comparison with active β2AR reveals a common rearrangement in the packing of three conserved amino acids in the core of the μOR, and molecular dynamics simulations illustrate how the ligand-binding pocket is conformationally linked to this conserved triad. Additionally, an extensive polar network between the ligand-binding pocket and the cytoplasmic domains appears to play a similar role in signal propagation for all three GPCRs.
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Affiliation(s)
- Weijiao Huang
- Department of Molecular and Cellular Physiology, Stanford University School of Medicine, 279 Campus Drive, Stanford, California 94305, USA
| | - Aashish Manglik
- Department of Molecular and Cellular Physiology, Stanford University School of Medicine, 279 Campus Drive, Stanford, California 94305, USA
| | - A J Venkatakrishnan
- Department of Molecular and Cellular Physiology, Stanford University School of Medicine, 279 Campus Drive, Stanford, California 94305, USA.,Department of Computer Science, Stanford University, 318 Campus Drive, Stanford, California 94305, USA.,Institute for Computational and Mathematical Engineering, Stanford University, 475 Via Ortega, Stanford, California 94305, USA
| | - Toon Laeremans
- Structural Biology Brussels, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium.,Structural Biology Research Center, VIB, Pleinlaan 2, B-1050 Brussels, Belgium
| | - Evan N Feinberg
- Department of Molecular and Cellular Physiology, Stanford University School of Medicine, 279 Campus Drive, Stanford, California 94305, USA.,Department of Computer Science, Stanford University, 318 Campus Drive, Stanford, California 94305, USA.,Institute for Computational and Mathematical Engineering, Stanford University, 475 Via Ortega, Stanford, California 94305, USA
| | - Adrian L Sanborn
- Department of Molecular and Cellular Physiology, Stanford University School of Medicine, 279 Campus Drive, Stanford, California 94305, USA.,Department of Computer Science, Stanford University, 318 Campus Drive, Stanford, California 94305, USA.,Institute for Computational and Mathematical Engineering, Stanford University, 475 Via Ortega, Stanford, California 94305, USA
| | - Hideaki E Kato
- Department of Molecular and Cellular Physiology, Stanford University School of Medicine, 279 Campus Drive, Stanford, California 94305, USA
| | - Kathryn E Livingston
- Department of Pharmacology, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - Thor S Thorsen
- Department of Molecular and Cellular Physiology, Stanford University School of Medicine, 279 Campus Drive, Stanford, California 94305, USA
| | - Ralf C Kling
- Department of Chemistry and Pharmacy, Friedrich Alexander University, Schuhstrasse 19, 91052 Erlangen, Germany
| | - Sébastien Granier
- Institut de Génomique Fonctionnelle, CNRS UMR-5203 INSERM U1191, University of Montpellier, F-34000 Montpellier, France
| | - Peter Gmeiner
- Department of Chemistry and Pharmacy, Friedrich Alexander University, Schuhstrasse 19, 91052 Erlangen, Germany
| | - Stephen M Husbands
- Department of Pharmacy and Pharmacology, University of Bath, Bath BA2 7AY, UK
| | - John R Traynor
- Department of Pharmacology, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - William I Weis
- Department of Molecular and Cellular Physiology, Stanford University School of Medicine, 279 Campus Drive, Stanford, California 94305, USA.,Department of Structural Biology, Stanford University School of Medicine, 299 Campus Drive, Stanford, California 94305, USA
| | - Jan Steyaert
- Structural Biology Brussels, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium.,Structural Biology Research Center, VIB, Pleinlaan 2, B-1050 Brussels, Belgium
| | - Ron O Dror
- Department of Molecular and Cellular Physiology, Stanford University School of Medicine, 279 Campus Drive, Stanford, California 94305, USA.,Department of Computer Science, Stanford University, 318 Campus Drive, Stanford, California 94305, USA.,Institute for Computational and Mathematical Engineering, Stanford University, 475 Via Ortega, Stanford, California 94305, USA
| | - Brian K Kobilka
- Department of Molecular and Cellular Physiology, Stanford University School of Medicine, 279 Campus Drive, Stanford, California 94305, USA
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Weichert D, Banerjee A, Hiller C, Kling RC, Hübner H, Gmeiner P. Molecular Determinants of Biased Agonism at the Dopamine D2 Receptor. J Med Chem 2015; 58:2703-17. [DOI: 10.1021/jm501889t] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Dietmar Weichert
- Department of Chemistry and
Pharmacy, Medicinal Chemistry, Emil Fischer Center, Friedrich Alexander University, Schuhstraße 19, 91052 Erlangen, Germany
| | - Ashutosh Banerjee
- Department of Chemistry and
Pharmacy, Medicinal Chemistry, Emil Fischer Center, Friedrich Alexander University, Schuhstraße 19, 91052 Erlangen, Germany
| | - Christine Hiller
- Department of Chemistry and
Pharmacy, Medicinal Chemistry, Emil Fischer Center, Friedrich Alexander University, Schuhstraße 19, 91052 Erlangen, Germany
| | - Ralf C. Kling
- Department of Chemistry and
Pharmacy, Medicinal Chemistry, Emil Fischer Center, Friedrich Alexander University, Schuhstraße 19, 91052 Erlangen, Germany
| | - Harald Hübner
- Department of Chemistry and
Pharmacy, Medicinal Chemistry, Emil Fischer Center, Friedrich Alexander University, Schuhstraße 19, 91052 Erlangen, Germany
| | - Peter Gmeiner
- Department of Chemistry and
Pharmacy, Medicinal Chemistry, Emil Fischer Center, Friedrich Alexander University, Schuhstraße 19, 91052 Erlangen, Germany
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Kling RC, Tschammer N, Lanig H, Clark T, Gmeiner P. Active-state model of a dopamine D2 receptor-Gαi complex stabilized by aripiprazole-type partial agonists. PLoS One 2014; 9:e100069. [PMID: 24932547 PMCID: PMC4059746 DOI: 10.1371/journal.pone.0100069] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Accepted: 05/20/2014] [Indexed: 11/18/2022] Open
Abstract
Partial agonists exhibit a submaximal capacity to enhance the coupling of one receptor to an intracellular binding partner. Although a multitude of studies have reported different ligand-specific conformations for a given receptor, little is known about the mechanism by which different receptor conformations are connected to the capacity to activate the coupling to G-proteins. We have now performed molecular-dynamics simulations employing our recently described active-state homology model of the dopamine D2 receptor-Gαi protein-complex coupled to the partial agonists aripiprazole and FAUC350, in order to understand the structural determinants of partial agonism better. We have compared our findings with our model of the D2R-Gαi-complex in the presence of the full agonist dopamine. The two partial agonists are capable of inducing different conformations of important structural motifs, including the extracellular loop regions, the binding pocket and, in particular, intracellular G-protein-binding domains. As G-protein-coupling to certain intracellular epitopes of the receptor is considered the key step of allosterically triggered nucleotide-exchange, it is tempting to assume that impaired coupling between the receptor and the G-protein caused by distinct ligand-specific conformations is a major determinant of partial agonist efficacy.
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Affiliation(s)
- Ralf C. Kling
- Department of Chemistry and Pharmacy, Emil Fischer Center, Friedrich Alexander University, Erlangen, Germany
- Department of Chemistry and Pharmacy, Computer Chemistry Center, Friedrich Alexander University, Erlangen, Germany
| | - Nuska Tschammer
- Department of Chemistry and Pharmacy, Emil Fischer Center, Friedrich Alexander University, Erlangen, Germany
| | - Harald Lanig
- Department of Chemistry and Pharmacy, Computer Chemistry Center, Friedrich Alexander University, Erlangen, Germany
- Central Institute for Scientific Computing, Friedrich Alexander University, Erlangen, Germany
| | - Timothy Clark
- Department of Chemistry and Pharmacy, Computer Chemistry Center, Friedrich Alexander University, Erlangen, Germany
- Centre for Molecular Design, University of Portsmouth, King Henry Building, Portsmouth, United Kingdom
| | - Peter Gmeiner
- Department of Chemistry and Pharmacy, Emil Fischer Center, Friedrich Alexander University, Erlangen, Germany
- * E-mail:
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11
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Abstract
Dopamine D2 receptor-promoted activation of Gα(o) over Gα(i) may increase synaptic plasticity and thereby might improve negative symptoms of schizophrenia. Heterocyclic dopamine surrogates comprising a pyrazolo[1,5-a]pyridine moiety were synthesized and investigated for their binding properties when low- to subnanomolar K(i) values were determined for D(2L), D(2S), and D3 receptors. Measurement of [(35)S]GTPγS incorporation at D(2S) coexpressed with G-protein subunits indicated significant bias for promotion of Gα(o1) over Gα(i2) coupling for several test compounds. Functionally selective D(2S) activation was most striking for the carbaldoxime 8b (Gα(o1), pEC50 = 8.87, E(max) = 65%; Gα(i2), pEC50 = 6.63, E(max) = 27%). In contrast, the investigated 1,4-disubstituted aromatic piperazines (1,4-DAPs) behaved as antagonists for β-arrestin-2 recruitment, implying significant ligand bias for G-protein activation over β-arrestin-2 recruitment at D(2S) receptors. Ligand efficacy and selectivity between D(2S) and D3 activation were strongly influenced by regiochemistry and the nature of functional groups attached to the pyrazolo[1,5-a]pyridine moiety.
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Affiliation(s)
- Dorothee Möller
- Department of Chemistry and Pharmacy, Medicinal Chemistry, and ‡Department of Chemistry and Pharmacy, Molecular and Clinical Pharmacy, Emil Fischer Center, Friedrich Alexander University , Schuhstrasse 19, 91052 Erlangen, Germany
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12
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Kling RC, Lanig H, Clark T, Gmeiner P. Active-state models of ternary GPCR complexes: determinants of selective receptor-G-protein coupling. PLoS One 2013; 8:e67244. [PMID: 23826246 PMCID: PMC3691126 DOI: 10.1371/journal.pone.0067244] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2013] [Accepted: 05/16/2013] [Indexed: 11/29/2022] Open
Abstract
Based on the recently described crystal structure of the β2 adrenergic receptor - Gs-protein complex, we report the first molecular-dynamics simulations of ternary GPCR complexes designed to identify the selectivity determinants for receptor-G-protein binding. Long-term molecular dynamics simulations of agonist-bound β2AR-Gαs and D2R-Gαi complexes embedded in a hydrated bilayer environment and computational alanine-scanning mutagenesis identified distinct residues of the N-terminal region of intracellular loop 3 to be crucial for coupling selectivity. Within the G-protein, specific amino acids of the α5-helix, the C-terminus of the Gα-subunit and the regions around αN-β1 and α4-β6 were found to determine receptor recognition. Knowledge of these determinants of receptor-G-protein binding selectivity is essential for designing drugs that target specific receptor/G-protein combinations.
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MESH Headings
- Alanine/genetics
- Amino Acid Sequence
- Binding Sites
- Dopamine/metabolism
- GTP-Binding Protein alpha Subunits, Gi-Go/chemistry
- GTP-Binding Protein alpha Subunits, Gi-Go/metabolism
- GTP-Binding Proteins/metabolism
- Histidine/metabolism
- Ligands
- Models, Biological
- Molecular Dynamics Simulation
- Molecular Sequence Data
- Multiprotein Complexes/metabolism
- Mutagenesis
- Protein Structure, Secondary
- Receptors, Adrenergic, beta-2/chemistry
- Receptors, Adrenergic, beta-2/metabolism
- Receptors, Dopamine/chemistry
- Receptors, Dopamine/metabolism
- Receptors, G-Protein-Coupled/chemistry
- Receptors, G-Protein-Coupled/metabolism
- Sequence Alignment
- Structural Homology, Protein
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Affiliation(s)
- Ralf C. Kling
- Department of Chemistry and Pharmacy, Emil Fischer Center, Friedrich Alexander University, Erlangen, Germany
- Department of Chemistry and Pharmacy, Computer Chemistry Center, Friedrich Alexander University, Erlangen, Germany
| | - Harald Lanig
- Department of Chemistry and Pharmacy, Computer Chemistry Center, Friedrich Alexander University, Erlangen, Germany
| | - Timothy Clark
- Department of Chemistry and Pharmacy, Computer Chemistry Center, Friedrich Alexander University, Erlangen, Germany
- Centre for Molecular Design, University of Portsmouth, King Henry Building, Portsmouth, United Kingdom
| | - Peter Gmeiner
- Department of Chemistry and Pharmacy, Emil Fischer Center, Friedrich Alexander University, Erlangen, Germany
- * E-mail:
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13
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Hiller C, Kling RC, Heinemann FW, Meyer K, Hübner H, Gmeiner P. Functionally Selective Dopamine D2/D3 Receptor Agonists Comprising an Enyne Moiety. J Med Chem 2013; 56:5130-41. [DOI: 10.1021/jm400520c] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Christine Hiller
- Department of Chemistry and
Pharmacy, Medicinal Chemistry, Emil Fischer Center, Friedrich Alexander University, Schuhstraße 19, 91052 Erlangen,
Germany
| | - Ralf C. Kling
- Department of Chemistry and
Pharmacy, Medicinal Chemistry, Emil Fischer Center, Friedrich Alexander University, Schuhstraße 19, 91052 Erlangen,
Germany
| | - Frank W. Heinemann
- Department of Chemistry
and
Pharmacy, Inorganic Chemistry, Friedrich Alexander University, Egerlandstraße 1, 91058 Erlangen, Germany
| | - Karsten Meyer
- Department of Chemistry
and
Pharmacy, Inorganic Chemistry, Friedrich Alexander University, Egerlandstraße 1, 91058 Erlangen, Germany
| | - Harald Hübner
- Department of Chemistry and
Pharmacy, Medicinal Chemistry, Emil Fischer Center, Friedrich Alexander University, Schuhstraße 19, 91052 Erlangen,
Germany
| | - Peter Gmeiner
- Department of Chemistry and
Pharmacy, Medicinal Chemistry, Emil Fischer Center, Friedrich Alexander University, Schuhstraße 19, 91052 Erlangen,
Germany
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14
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Duggan RE, Lipscomb GQ, Cox EL, Heatwole RE, Kling RC. Pesticide residue levels in foods in the United States from July 1, 1963 to June 30, 1969. Pestic Monit J 1971; 5:73-212. [PMID: 5164959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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