2007 Fiscal Year Final Research Report Summary
Innovation of artificial Luminescence System by Modeling Firefly Bioluminescence
| Project/Area Number |
18510181
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Living organism molecular science
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| Research Institution | The University of Electro-Communications |
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Principal Investigator |
MAKI Shojiro The University of Electro-Communications, Faculty of Electro-Communications, Assistant Professor (20266349)
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| Co-Investigator(Kenkyū-buntansha) |
NIWA Haruki The University of Electro-Communications, Faculty of Electro-Communications, Professor (20135297)
HIRANO Takashi The University of Electro-Communications, Faculty of Electro-Communications, Associate Professor (20238380)
KOJIMA Satoshi The University of Electro-Communications, Faculty of Electro-Communications, Assistant Professor (80401628)
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| Project Period (FY) |
2006 – 2007
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| Keywords | probe / bioluminescence / molecular imaging / firefly / wavelength / fluorescence / biomimetics / バイオミメティクス |
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| Research Abstract |
1. Confirmation of "rate-determining step" of luciferase.
Luciferase has 2 functions are adenylylation site and oxygenation site. It is confirmed the adenylylation reaction is rate-determining step by analyzing adenylyl luciferin reaction.
2. Reaction analysis of adenylylation site.
The adenylylation function is divided recognition step and reaction step. The adenylyl luciferin makes flash emission, though the emission intensity is enhanced, remarkably. This problem has been solved.
I. On adenylylation function, structural recognition is dominant over chiral recognition.
II. To be modified thiazoline site bulky, emission activity remarkably deterioration.
III. An adenylylation of luciferin analogues makes emission activity enhance.
IV. An addition of Pyrophosphate makes emission intensity flat.
3. Development of RGB emission (450, 560, 680nm) luciferin analogues.
Firefly luciferin analogues have been designed and synthesized for making RGB emission color, based on the data of structure activity analysis. It is achieved by similarity three analogues in the first time of the world.
4. Discovery of lead for emission color changing method.
It is longed for a signpost for emission color changing. From the data of structure activity analysis, the lead of emission color changing method is discovered. We are accomplishing to establish a hypothesis.
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[Journal Article] Construction of a New Firefly Bioluminescence System Using L-Luciferin as Substrate2006
Author(s)
Mitsuhiro, Nakamura, Kazuki, Niwa, Shoiiro, Maki, Takashi, Hirano, Yoshihiro, Ohmiya, Haruki, Niwa
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Journal Title
Tetrahedron Letters 47
Pages: 1197-1200
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Chemiluminescence of 6-aryl-2-methylimidazo [1,2-alpyrazin-3(7H)-ones in DMSO/TMG and in diglyme/acetate buffer : support for the chemiexcitation process to generate the singlet-excited state of neutral oxyluciferin in high quantum yield in the Cypridina (Vargula) bioluminescence mechanism2006
Author(s)
Yuto, Takahashi, Hiroyuki, Kondo, Shoiiro, Maki, Haruki, Niwa, Hiroshi, Ikeda, Takashi, Hirano
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Journal Title
Tetrahedron Letters 47
Pages: 6057-6061
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Real light emitter in the bioluminescence of the calcium-activated photoproteins aequorin and obelin : fluorescence from the singlet-excited state of coelenteramide phenolate anion in a contact ion pair2006
Author(s)
Kotaro, Mori, Shoiiro, Maki, Haruki, Niwa, Toshiteru, Emonoto, Yoshihiro, Ohmiya, Hiroshi, Ikeda, Takashi, Hirano
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Journal Title
Tetrahedron 62
Pages: 6272-6288
Description
「研究成果報告書概要(欧文)」より
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[Presentation] Chemical approaches for enhanced firefly bioluminescence2006
Author(s)
Satoshi, Kojima, Shoiiro, Maki, Takashi, Hirano, Haruki, Niwa
Organizer
The 15th International Symposium on Bioluminescence & Chemibrminescence, (ISBC2006), Abstract : Luminescence, 21, p.279
Place of Presentation
San Diego, USA
Year and Date
20061015-19
Description
「研究成果報告書概要(欧文)」より
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