2013 Fiscal Year Final Research Report
Structural study for understanding the molecular mechanism of ectodomain shedding by ADAM family proteinases
Project/Area Number |
23570156
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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 |
Structural biochemistry
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Research Institution | National Cardiovascular Center Research Institute |
Principal Investigator |
TAKEDA Soichi 独立行政法人国立循環器病研究センター, 研究所, 室長 (80332279)
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Project Period (FY) |
2011 – 2013
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Keywords | プロテアーゼ / シグナリング / 構造生物学 / 基質認識機構 / マルチドメイン構造 / X線結晶構造解析 / タンパク質間相互作用 / ディスインテグリン |
Research Abstract |
ADAM proteinases are mostly type-1 membrane-bound glycoproteins and function as major sheddases for the processing of cell-surface-protein ectodomains, including the latent forms of growth factors and cytokines. ADAMs play key roles in normal development and morphogenesis and are associated with several diseases, including cancer and Alzheimer's disease. There are no consensus amino acid sequences around the sites cleaved by ADAMs and the molecular mechanism how ADAMs recognize the target molecules remains elusive. We focused on several ADAMs from snake venoms for crystallographic studies because snake ADAMs are soluble proteinases without membrane-spanning regions and usually display high specificity for distinct target molecules. Multactivase isolated from Echis multimantus has a prothrombin-activating activity. We have determined a crystal structure of the exosite domain of Multactivase and discussed the molecular mechanism of prothrombin recognition for cleavage by Multactivase.
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[Journal Article] Enzymatic Toxins from Snake Venom : Structural Characterization and Mechanism of Catalysis (Review article)2011
Author(s)
Kang TS, Georgieva D, Genov N, Murakami MT, Sinha M, Kumar RP, Kaur P, Kumar S, Dey S, Sharma S, Vrielink A, Betzel C, Takeda S, Arni RK, Singh TP, Kini RM.
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Journal Title
FEBS J.
Volume: 278
Pages: 4544-4576
Peer Reviewed
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[Presentation] Structural basis for ADAMTS13 function2011
Author(s)
Masashi Akiyama, Daisuke Nakayama, Soichi Takeda, Koichi Kokame, Junichi Takagi, Toshiyuki Miyata.
Organizer
XXIII Congress of the International Society of Thrombosis and Haemostasis (ISTH2011)
Place of Presentation
Kyoto International Conference Center
Year and Date
20110700
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