2011 Fiscal Year Final Research Report
Screening for compounds targeted to novel rapamycin-independent autophagic mechanism
| Project/Area Number |
23659036
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Biological pharmacy
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| Research Institution | Kyoto University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
SANDO Yukari 京都大学, 大学院・生命科学研究科, 教務職員 (70359785)
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| Project Period (FY) |
2011
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| Keywords | オートファジー / ラパマイシン / 酵母 / Ypk1 / スクリーニング / セリン・スレオニンキナーゼ |
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| Research Abstract |
In this grant, we established monitoring system of rapamycin-independent autophagic protein degradation utilizing GFP-tagged Ypk1 localization change under fluorescent microscope. In this assay, inhibitory activity of compounds could be monitored by the loss of vacuolar localization of Ypk1 when vacuolar peptidase deficient strain(pep4Δ) is used.This assay should be utilized along with primary screening system of normal protein degradation, namely Western blotting analysis after SDS-PAGE to monitor the degree of Ypk1 proteolysis. We also screened a set of yeast protein kinase mutant strains to understand the autophagic degradation of Ypk1. This screening was based on the hypothesis that intracellular signaling event is involved in the Ypk1 degradation. We have identified a pair of protein kinase that is responsible of Ypk1 phosphorylation both in vivo and in vitro. Data obtained here will be fundamentally required for future screening to target novel autophagic pathway.
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[Journal Article] CD22-Antagonists with nanomolar potency : The synergistic effect of hydrophobic groups at C-2 and C-9 of sialic acid scaffold2011
Author(s)
Abdu-Allah HHM, Watanabe K, Completo GC, Sadagopan M, Hayashizaki K, Takaku C, Tamanaka T, Takematsu H, Kozutsumi Y, Paulson JC, Tsubata T, Ando H, Ishida H, Kiso M
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Journal Title
Bioorg and Med Chem
Volume: 19(6)
Pages: 1966-71
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