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  • 1
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    Structural basis for molecular recognition at serotonin receptors (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-03-23
    Description: Serotonin or 5-hydroxytryptamine (5-HT) regulates a wide spectrum of human physiology through the 5-HT receptor family. We report the crystal structures of the human 5-HT1B G protein-coupled receptor bound to the agonist antimigraine medications ergotamine and dihydroergotamine. The structures reveal similar binding modes for these ligands, which occupy the orthosteric pocket and an extended binding pocket close to the extracellular loops. The orthosteric pocket is formed by residues conserved in the 5-HT receptor family, clarifying the family-wide agonist activity of 5-HT. Compared with the structure of the 5-HT2B receptor, the 5-HT1B receptor displays a 3 angstrom outward shift at the extracellular end of helix V, resulting in a more open extended pocket that explains subtype selectivity. Together with docking and mutagenesis studies, these structures provide a comprehensive structural basis for understanding receptor-ligand interactions and designing subtype-selective serotonergic drugs.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3644373/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3644373/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wang, Chong -- Jiang, Yi -- Ma, Jinming -- Wu, Huixian -- Wacker, Daniel -- Katritch, Vsevolod -- Han, Gye Won -- Liu, Wei -- Huang, Xi-Ping -- Vardy, Eyal -- McCorvy, John D -- Gao, Xiang -- Zhou, X Edward -- Melcher, Karsten -- Zhang, Chenghai -- Bai, Fang -- Yang, Huaiyu -- Yang, Linlin -- Jiang, Hualiang -- Roth, Bryan L -- Cherezov, Vadim -- Stevens, Raymond C -- Xu, H Eric -- P50 GM073197/GM/NIGMS NIH HHS/ -- R01 DA027170/DA/NIDA NIH HHS/ -- R01 DA27170/DA/NIDA NIH HHS/ -- R01 DK071662/DK/NIDDK NIH HHS/ -- R01 MH061887/MH/NIMH NIH HHS/ -- R01 MH61887/MH/NIMH NIH HHS/ -- U19 MH082441/MH/NIMH NIH HHS/ -- U19 MH82441/MH/NIMH NIH HHS/ -- U54 GM094618/GM/NIGMS NIH HHS/ -- Y1-CO-1020/CO/NCI NIH HHS/ -- Y1-GM-1104/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2013 May 3;340(6132):610-4. doi: 10.1126/science.1232807. Epub 2013 Mar 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Integrative Structural and Computational Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23519210" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Binding Sites ; Crystallography, X-Ray ; Dihydroergotamine/chemistry/*metabolism ; Ergotamine/chemistry/*metabolism ; Humans ; Hydrogen Bonding ; Hydrophobic and Hydrophilic Interactions ; Ligands ; Lysergic Acid Diethylamide/chemistry/metabolism ; Models, Molecular ; Molecular Docking Simulation ; Molecular Sequence Data ; Mutagenesis ; Norfenfluramine/chemistry/metabolism ; Pindolol/analogs & derivatives/chemistry/metabolism ; Propranolol/chemistry/metabolism ; Protein Conformation ; Protein Folding ; Protein Structure, Secondary ; Receptor, Serotonin, 5-HT1B/*chemistry/genetics/*metabolism ; Serotonin 5-HT1 Receptor Agonists/*chemistry/*metabolism ; Tryptamines/chemistry/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Structure of the human kappa-opioid receptor in complex with JDTic (2012)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2012-03-23
    Description: Opioid receptors mediate the actions of endogenous and exogenous opioids on many physiological processes, including the regulation of pain, respiratory drive, mood, and--in the case of kappa-opioid receptor (kappa-OR)--dysphoria and psychotomimesis. Here we report the crystal structure of the human kappa-OR in complex with the selective antagonist JDTic, arranged in parallel dimers, at 2.9 A resolution. The structure reveals important features of the ligand-binding pocket that contribute to the high affinity and subtype selectivity of JDTic for the human kappa-OR. Modelling of other important kappa-OR-selective ligands, including the morphinan-derived antagonists norbinaltorphimine and 5'-guanidinonaltrindole, and the diterpene agonist salvinorin A analogue RB-64, reveals both common and distinct features for binding these diverse chemotypes. Analysis of site-directed mutagenesis and ligand structure-activity relationships confirms the interactions observed in the crystal structure, thereby providing a molecular explanation for kappa-OR subtype selectivity, and essential insights for the design of compounds with new pharmacological properties targeting the human kappa-OR.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3356457/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3356457/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wu, Huixian -- Wacker, Daniel -- Mileni, Mauro -- Katritch, Vsevolod -- Han, Gye Won -- Vardy, Eyal -- Liu, Wei -- Thompson, Aaron A -- Huang, Xi-Ping -- Carroll, F Ivy -- Mascarella, S Wayne -- Westkaemper, Richard B -- Mosier, Philip D -- Roth, Bryan L -- Cherezov, Vadim -- Stevens, Raymond C -- P50 GM073197/GM/NIGMS NIH HHS/ -- P50 GM073197-08/GM/NIGMS NIH HHS/ -- R01 DA009045/DA/NIDA NIH HHS/ -- R01 DA009045-17/DA/NIDA NIH HHS/ -- R01 DA017204/DA/NIDA NIH HHS/ -- R01 DA017624/DA/NIDA NIH HHS/ -- R01 DA027170/DA/NIDA NIH HHS/ -- U54 GM094618/GM/NIGMS NIH HHS/ -- U54 GM094618-02/GM/NIGMS NIH HHS/ -- Y1-CO-1020/CO/NCI NIH HHS/ -- Y1-GM-1104/GM/NIGMS NIH HHS/ -- England -- Nature. 2012 Mar 21;485(7398):327-32. doi: 10.1038/nature10939.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22437504" target="_blank"〉PubMed〈/a〉
    Keywords: Binding Sites ; Crystallography, X-Ray ; Diterpenes, Clerodane/chemistry/metabolism/pharmacology ; Guanidines/chemistry ; Humans ; Models, Molecular ; Morphinans/chemistry ; Mutagenesis, Site-Directed ; Naltrexone/analogs & derivatives/chemistry/metabolism ; Piperidines/*chemistry/pharmacology ; Protein Conformation ; Receptors, Adrenergic, beta-2/chemistry ; Receptors, CXCR4/chemistry/metabolism ; Receptors, Opioid, kappa/*antagonists & inhibitors/*chemistry/genetics/metabolism ; Structure-Activity Relationship ; Tetrahydroisoquinolines/*chemistry/pharmacology
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 3
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    Structure of the human glucagon class B G-protein-coupled receptor (2013)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2013-07-19
    Description: Binding of the glucagon peptide to the glucagon receptor (GCGR) triggers the release of glucose from the liver during fasting; thus GCGR plays an important role in glucose homeostasis. Here we report the crystal structure of the seven transmembrane helical domain of human GCGR at 3.4 A resolution, complemented by extensive site-specific mutagenesis, and a hybrid model of glucagon bound to GCGR to understand the molecular recognition of the receptor for its native ligand. Beyond the shared seven transmembrane fold, the GCGR transmembrane domain deviates from class A G-protein-coupled receptors with a large ligand-binding pocket and the first transmembrane helix having a 'stalk' region that extends three alpha-helical turns above the plane of the membrane. The stalk positions the extracellular domain (~12 kilodaltons) relative to the membrane to form the glucagon-binding site that captures the peptide and facilitates the insertion of glucagon's amino terminus into the seven transmembrane domain.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3820480/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3820480/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Siu, Fai Yiu -- He, Min -- de Graaf, Chris -- Han, Gye Won -- Yang, Dehua -- Zhang, Zhiyun -- Zhou, Caihong -- Xu, Qingping -- Wacker, Daniel -- Joseph, Jeremiah S -- Liu, Wei -- Lau, Jesper -- Cherezov, Vadim -- Katritch, Vsevolod -- Wang, Ming-Wei -- Stevens, Raymond C -- F32 DK088392/DK/NIDDK NIH HHS/ -- P50 GM073197/GM/NIGMS NIH HHS/ -- P50GM073197/GM/NIGMS NIH HHS/ -- U54 GM094586/GM/NIGMS NIH HHS/ -- U54 GM094618/GM/NIGMS NIH HHS/ -- Y1-CO-1020/CO/NCI NIH HHS/ -- Y1-GM-1104/GM/NIGMS NIH HHS/ -- England -- Nature. 2013 Jul 25;499(7459):444-9. doi: 10.1038/nature12393. Epub 2013 Jul 17.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Integrative Structural and Computational Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23863937" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Binding Sites ; Cell Membrane/metabolism ; Crystallography, X-Ray ; Glucagon/chemistry/metabolism ; Humans ; Ligands ; Models, Molecular ; Molecular Sequence Data ; Mutagenesis, Site-Directed ; Protein Binding ; Protein Structure, Tertiary ; Receptors, CXCR4/chemistry/classification ; Receptors, Glucagon/*chemistry/*classification/genetics/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 4
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    Serial femtosecond crystallography of G protein-coupled receptors (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-12-21
    Description: X-ray crystallography of G protein-coupled receptors and other membrane proteins is hampered by difficulties associated with growing sufficiently large crystals that withstand radiation damage and yield high-resolution data at synchrotron sources. We used an x-ray free-electron laser (XFEL) with individual 50-femtosecond-duration x-ray pulses to minimize radiation damage and obtained a high-resolution room-temperature structure of a human serotonin receptor using sub-10-micrometer microcrystals grown in a membrane mimetic matrix known as lipidic cubic phase. Compared with the structure solved by using traditional microcrystallography from cryo-cooled crystals of about two orders of magnitude larger volume, the room-temperature XFEL structure displays a distinct distribution of thermal motions and conformations of residues that likely more accurately represent the receptor structure and dynamics in a cellular environment.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3902108/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3902108/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liu, Wei -- Wacker, Daniel -- Gati, Cornelius -- Han, Gye Won -- James, Daniel -- Wang, Dingjie -- Nelson, Garrett -- Weierstall, Uwe -- Katritch, Vsevolod -- Barty, Anton -- Zatsepin, Nadia A -- Li, Dianfan -- Messerschmidt, Marc -- Boutet, Sebastien -- Williams, Garth J -- Koglin, Jason E -- Seibert, M Marvin -- Wang, Chong -- Shah, Syed T A -- Basu, Shibom -- Fromme, Raimund -- Kupitz, Christopher -- Rendek, Kimberley N -- Grotjohann, Ingo -- Fromme, Petra -- Kirian, Richard A -- Beyerlein, Kenneth R -- White, Thomas A -- Chapman, Henry N -- Caffrey, Martin -- Spence, John C H -- Stevens, Raymond C -- Cherezov, Vadim -- P50 GM073197/GM/NIGMS NIH HHS/ -- P50 GM073210/GM/NIGMS NIH HHS/ -- R01 GM095583/GM/NIGMS NIH HHS/ -- U54 GM094599/GM/NIGMS NIH HHS/ -- U54 GM094618/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2013 Dec 20;342(6165):1521-4. doi: 10.1126/science.1244142.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24357322" target="_blank"〉PubMed〈/a〉
    Keywords: Crystallography, X-Ray/*instrumentation/*methods ; Humans ; Lasers ; Protein Conformation ; Receptor, Serotonin, 5-HT2B/chemistry/radiation effects ; Receptors, G-Protein-Coupled/*chemistry/radiation effects ; Time Factors
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 5
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    Structural features for functional selectivity at serotonin receptors (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-03-23
    Description: Drugs active at G protein-coupled receptors (GPCRs) can differentially modulate either canonical or noncanonical signaling pathways via a phenomenon known as functional selectivity or biased signaling. We report biochemical studies showing that the hallucinogen lysergic acid diethylamide, its precursor ergotamine (ERG), and related ergolines display strong functional selectivity for beta-arrestin signaling at the 5-HT2B 5-hydroxytryptamine (5-HT) receptor, whereas they are relatively unbiased at the 5-HT1B receptor. To investigate the structural basis for biased signaling, we determined the crystal structure of the human 5-HT2B receptor bound to ERG and compared it with the 5-HT1B/ERG structure. Given the relatively poor understanding of GPCR structure and function to date, insight into different GPCR signaling pathways is important to better understand both adverse and favorable therapeutic activities.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3644390/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3644390/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wacker, Daniel -- Wang, Chong -- Katritch, Vsevolod -- Han, Gye Won -- Huang, Xi-Ping -- Vardy, Eyal -- McCorvy, John D -- Jiang, Yi -- Chu, Meihua -- Siu, Fai Yiu -- Liu, Wei -- Xu, H Eric -- Cherezov, Vadim -- Roth, Bryan L -- Stevens, Raymond C -- P50 GM073197/GM/NIGMS NIH HHS/ -- R01 DK071662/DK/NIDDK NIH HHS/ -- R01 MH061887/MH/NIMH NIH HHS/ -- R01 MH61887/MH/NIMH NIH HHS/ -- U19 MH082441/MH/NIMH NIH HHS/ -- U19 MH82441/MH/NIMH NIH HHS/ -- U54 GM094618/GM/NIGMS NIH HHS/ -- Y1-CO-1020/CO/NCI NIH HHS/ -- Y1-GM-1104/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2013 May 3;340(6132):615-9. doi: 10.1126/science.1232808. Epub 2013 Mar 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Integrative Structural and Computational Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23519215" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Motifs ; Amino Acid Sequence ; Arrestin/metabolism ; Arrestins/metabolism ; Binding Sites ; Crystallography, X-Ray ; Ergolines/chemistry/metabolism ; Ergotamine/chemistry/*metabolism ; HEK293 Cells ; Humans ; Ligands ; Lysergic Acid Diethylamide/chemistry/metabolism ; Models, Molecular ; Molecular Sequence Data ; Protein Conformation ; Protein Structure, Secondary ; Receptor, Serotonin, 5-HT1B/chemistry/*metabolism ; Receptor, Serotonin, 5-HT2B/*chemistry/*metabolism ; Receptors, Serotonin/chemistry/metabolism ; Signal Transduction
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 6
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    Seasonal changes in the accumulation of polyunsaturated fatty acids in zooplankton (2012)
    Oxford University Press
    Details
    Publication Date: 2012-12-28
    Description: In aquatic food webs, consumers, such as daphnids and copepods, differ regarding their accumulation of polyunsaturated fatty acids (PUFAs). We tested if the accumulation of PUFAs in a seston size fraction containing different consumers and in Daphnia as a separate consumer is subject to seasonal changes in a large deep lake due to changes in the dietary PUFA supply and specific demands of different consumers. We found that the accumulation of arachidonic acid (ARA) in Daphnia increased from early summer to late summer and autumn. However, ARA requirements of Daphnia appeared to be constant throughout the year, because the accumulation of ARA increased when the dietary ARA supply decreased. In the size fraction 〉140 µm, we found an increased accumulation of docosahexaenoic acid (DHA) during late summer and autumn. These seasonal changes in DHA accumulation were linked to changes in the proportion of copepods in this size fraction, which may have increasingly accumulated DHA for active overwintering. We show that consumer-specific PUFA demands can result in seasonal changes in PUFA accumulation, which may influence the trophic transfer of PUFAs within the food web.
    Print ISSN: 0142-7873
    Electronic ISSN: 1464-3774
    Topics: Biology
    Published by Oxford University Press
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  • 7
    Electronic Resource
    Electronic Resource
    Measurement of the left-right asymmetry in the electrodisintegration of the deuteron
    Amsterdam : Elsevier
    Physics Letters B 339 (1994), S. 17-21 
    Details
    ISSN: 0370-2693
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0370-2693(94)91126-6
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    Paper (German National Licenses)
    Fulltext
  • 8
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    Measurement of the Neutron Magnetic Form Factor (1995)
    American Physical Society
    Details
    Publication Date: 1995-07-03
    Print ISSN: 0031-9007
    Electronic ISSN: 1079-7114
    Topics: Physics
    Published by American Physical Society
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  • 9
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    Realization of a Phenyl-Terminated Organic Surface and Its Interaction with Chromium Atoms (1997)
    American Chemical Society
    Details
    Publication Date: 1997-12-01
    Print ISSN: 0743-7463
    Electronic ISSN: 1520-5827
    Topics: Chemistry and Pharmacology
    Published by American Chemical Society
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  • 10
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    Structural and functional analysis of Nup120 suggests ring formation of the Nup84 complex (2009)
    National Academy of Sciences
    Details
    Publication Date: 2009-08-11
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
    Published by National Academy of Sciences
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