Estimation of structural and statistical sectors of HV-1 Env trimer by random matrix theory
Project/Area Number |
16K08824
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Virology
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Research Institution | National Institute of Infectious Diseases |
Principal Investigator |
Yokoyama Masaru 国立感染症研究所, 病原体ゲノム解析研究センター, 主任研究官 (70296028)
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Project Period (FY) |
2016-04-01 – 2019-03-31
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Project Status |
Completed (Fiscal Year 2018)
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Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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Keywords | HIV-1 / エンベロープ / 揺らぎ / 統計的カップリング行列 / ランダム行列理論 / セクター / スペクトラルクラスタリング / 分子・構造 |
Outline of Final Research Achievements |
To clarify the mechanism of the neutralizing antibody escape and the origin of functional constraints in the evolution of HIV-1 Env, we estimated the structural and statistical sectors by random matrix theory. One of the structural sectors contained the V3 tip and the adjacent protomer V1/V2. The result suggests that masking of the neutralizing epitope of the anti-V3 antibody is controlled by the correlation motion with the adjacent protomer V1/V2. We estimated the statistical sector located in the C-C loop in HIV-1 Env. This statistical sector would be intolerant of mutations in order to maintain structural stability.
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Academic Significance and Societal Importance of the Research Achievements |
本研究により、HIV-1 Env三量体のプロトマー間での相関運動による中和抗体逃避機構が明らかになった。この研究成果は、タンパク質構造に基づく抗原デザインや抗ウイルス薬による中和感受性の制御を可能にする。また、HIV-1 Envに変異を許容し難い進化セクターがあることを見出した。HIV-1は易変異性ウイルスであり、これまでEnvで変異を許容し難い部位の報告は無い。この進化セクターは新たな治療標的になると考えられる。
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Report
(4 results)
Research Products
(38 results)
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[Journal Article] Critical Contribution of Tyr15 in the HIV-1 Integrase (IN) in Facilitating IN Assembly and Nonenzymatic Function through the IN Precursor Form with Reverse Transcriptase.2017
Author(s)
Takahata T, Takeda E, Tobiume M, Tokunaga K, Yokoyama M, Huang YL, Hasegawa A, Shioda T, Sato H, Kannagi M, Masuda T.
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Journal Title
J Virol
Volume: 91
Issue: 1
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Enhanced antibody-mediated neutralization of HIV-1 variants that are resistant to fusion inhibitors2016
Author(s)
Alam, M., Kuwata, T., Shimura, K., Yokoyama, M., Ramirez Valdez, K. P., Tanaka, K., Maruta, Y., Oishi, S., Fujii, N., Sato, H., Matsuoka M. and Matsushita S.
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Journal Title
Retrovirology
Volume: 13
Issue: 1
Pages: 70-70
DOI
NAID
Related Report
Peer Reviewed / Open Access
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[Journal Article] Molecular Mechanism of HIV-1 Vpr for Binding to Importin-α.2016
Author(s)
Miyatake H., Sanjoh A., Murakami T., Murakami H., Matsuda G., Hagiwara K., Yokoyama M., Sato H., Miyamoto Y., Dohmae N., Aida Y.
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Journal Title
J. Mol. Biol.
Volume: 428
Issue: 13
Pages: 2744-2757
DOI
Related Report
Peer Reviewed
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[Journal Article] Novel mutant human immunodeficiency virus type 1 strains with high degree of resistance to cynomolgus macaque TRIMCyp generated by randam mutagenesis.2016
Author(s)
Sultana, T., Nakayama, E.E., Tobita, S., Yokoyama, M., Seki, Y., Saito, A., Nomaguchi, M., Adachi, A., Akari, H., Sato, H., and Shioda, T.
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Journal Title
Journal of General Virology
Volume: 97
Issue: 4
Pages: 963-976
DOI
Related Report
Peer Reviewed / Open Access
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