ASIA unversity:Item 310904400/2655
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    題名: In silico study of oncoproteins and tumor suppressor protein Domain-Domain interactions
    作者: Yu-Liang Lee
    貢獻者: Department of Bioinformatics
    關鍵詞: protein-protein interactions;domain-domain interactions;cancerous proteins
    日期: 2009
    上傳時間: 2009-11-06 14:33:31 (UTC+0)
    出版者: Asia University
    摘要: Cancer diseases could possibly induced by abnormal protein-protein interactions (PPIs). Given the PPIs (Biogrid), cancer genes (Tumor Associate Gene, TAG) and domain annotation (InterPro) information, we derived the onco-proteins (OCP) and tumor suppressor proteins (TSP) domain-domain interactions (DDIs).
    Two interaction models are introduced to describe cancerous proteins domain-domain interactions (DDI), that is the single domain interaction model and the multi-domain interaction model. The cancer-specific DDIs scoring information are employed to valid the single domain interaction model for the OCP-OCP, TSP-TSP and OCP-TSP dataset. It is found that the OCP-OCP DDIs score achieved the best sensitivity test result, which is 79.9%. The TSP-TSP DDIs score obtained the lowest sensitivity result, which is 54.8%. Furthermore, the lowest false positive is obtained by training the TSP-TSP DDIs score against the OCP-OCP test set, which has a 11.6% false positive rate.
    On the other hand, we also compared the top 20 OCP-OCP DDIs for both the single domain interaction model and multi-domain interaction model, it is found that 60% of the DDIs overlapped, hence, the multi-domain interaction model could provide much more DDIs pairs information, but it does not incur much effects on their ranking.
    A web-based interface has been set up to report our results, which is available at http://210.70.83.81/tsgocg-ppi/.
    顯示於類別:[生物資訊與醫學工程學系 ] 博碩士論文

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