2012 Fiscal Year Final Research Report
Exploration of pure antagonist analgesics to block the algesic nociceptinreceptor
Project/Area Number |
22600006
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
疼痛学
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Research Institution | Kyushu University |
Principal Investigator |
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Co-Investigator(Renkei-kenkyūsha) |
SHIMOHIGASHI Yasuyuki 九州大学, 大学院・理学研究院, 教授 (00211293)
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Project Period (FY) |
2010 – 2012
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Keywords | ケミカルバイオロジー / シグナル伝達 / 生理活性 / 生体分子 / 鎮痛 / 脳・神経 / 構造活性相関 / 分子認識 |
Research Abstract |
The goal of this study is to develop the analgesics based on novel antagonistmolecular mechanisms of the algesic nociceptin receptor, but not on ordinary agonist mechanisms of the analgesic opioid receptors. To set and achieve this goal, we performed (1) alanine scanning of allamino acids of the receptor (2) affinity labeling, and (3) molecular modeling. We have succeeded in preparations of all of possible point-mutated receptors one-by-one, and also in preparations of the affinity ligands for them. These enabled to identify three essential Cys residues present in the ligand-binding cavity. Their mapping on the modeling 3D-structure suggested that neighboring Tyr is a key residue for the antagonist binding.
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Research Products
(40 results)
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[Journal Article] Halogenated Phe-containing endomorphin-2 analogs with mixed agonist and antagonist activities.2013
Author(s)
Nishio, K., Nishimura, H., Suyama, K., Matsushima, A., Nose, T., and Shimohigashi, Y.
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Journal Title
Peptide Science 2012
Pages: 25-26
Peer Reviewed
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[Journal Article] High-precision binding assay procedure of tachykinin receptor NK-1 for highly potent Substance P analogs2013
Author(s)
Kuramitsu, Y., Nishimura, H., Nakamura, R., Suyama, K., Matsushima, A., Nose, T., and Shimohigashi, Y
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Journal Title
Peptide Science 2012
Pages: 213-214
Peer Reviewed
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[Journal Article] Two different binding modes of peptide library-based antagonist acyl-RYYRIK amide in the orl1 nociceptin receptor.2013
Author(s)
Inamine, S., Nishimura, H., Li, J., Matsushima, A. Costa, T., and Shimohigashi, Y
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Journal Title
Peptide Science 2012
Pages: 229-230
Peer Reviewed
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[Journal Article] Receptor Binding Characteristics of Tritium-labeled Pure antagonist Peptide for Hyperalgesic nociceptin ORL1 receptor.2012
Author(s)
Inamine, S., Nishimura, H., Li, J., Matsushima, A., Nose, T., Costa, T., and Shimohigashi, Y.
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Journal Title
Peptide Science 2011
Pages: 183-184
Peer Reviewed
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[Journal Article] Effects ofthe halogenation of Phe-phenyl group of two consecutive residues in endomorphin-2 on the interaction with the μ-opioid receptors2012
Author(s)
Nishio, K., Hishimura, H., Suyama, K., Abe, Y., Matsushima, A., Nose, T., and Shimohigashi, Y
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Journal Title
Peptide Science 2011
Pages: 171-172
Peer Reviewed
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[Journal Article] Structural essentials of hyperalgesic nococeptin ORL1 receptor for ligand binding and receptor activation.2012
Author(s)
Nishimura, H., Li, J., Isozaki, K., Abe, Y., Inamine, S., Matsushima, A., Nose, T., Costa, T., and Shimohigashi, Y.
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Journal Title
Peptide Science 2011
Pages: 33-34
Peer Reviewed
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[Journal Article] Exploration of the binding site of ORL1 nociceptin receptor antagonist.2011
Author(s)
Inamine, S., Li, J., Nishimura, H., Matsushima, A., Nose, T., Costa, T. and Shimohigashi, Y
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Journal Title
Peptide Science 2010
Volume: 167
Peer Reviewed
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[Journal Article] The Trp residue of opioid receptor TM5 present at the cell membrane interface is a molecular anchor for full activation.2010
Author(s)
Nishimura, H., Li, J., Inokuchi, N., Koikawa, S., Matsushima, A., Nose, T., Costa, T. and Shimohigashi, Y.
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Journal Title
Peptide Science 2010
Volume: 175
Peer Reviewed
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[Presentation] Halogenation of Phe-phenyl in Opioid Peptide Engdomorphin-2 for Invention of Antagonist2012
Author(s)
Nishio, K., Nishimura, H., Suyama, K., Matsushima, A., Nose, T., and Shimohigashi, Y.
Organizer
第16回韓国ペプチド・タンパク質シンポジウム
Place of Presentation
サムソン記念講堂、成均館大学校、韓国 (水原)
Year and Date
2012-11-30
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[Presentation] Exploration of the binding site of ORL1 nociceptin receptor antagonist2010
Author(s)
Inamine, S., Li, J., Matsushima, A., Nose, T., Costa, T., Shimohigashi, Y
Organizer
5th International Peptide Symposium
Place of Presentation
Kyoto international conference center, Kyoto, Japan
Year and Date
20101204-09
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[Presentation] A Trp residue of opioid recetor TM5 is present at the cell membrane interface as a molecular anchor for full activation2010
Author(s)
Nishimura, H., Li, J., Inokuchi, N., Koikawa, S., Nose, T., Matsushima, A., Costa, T., Shimohigashi, Y.
Organizer
5th International Peptide Symposium
Place of Presentation
Kyoto international conference center, Kyoto, Japan
Year and Date
20101204-09
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[Presentation] Structure-activity studies on nociceptin and its receptor ORL12010
Author(s)
Shimohigashi, Y., Nishimura, H., Li, J., Inokuchi, N., Koikawa, S., Nose, T., Matsushima, A., osta, T
Organizer
5th International Peptide Symposium
Place of Presentation
Kyoto international conference center, Kyoto, Japan
Year and Date
20101204-09
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