MONOCLONAL ANTIBODY BASED ONLINE PHOSPHOPROTEIN PROTEOMICS ANALYSIS METHOD USING MICROBORE HOLLOW FIBER ENZYMATIC REACTOR-TANDEM MASS SPECTROMETRY

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United States of America Patent

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15504732

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Abstract

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A phosphoprotein extraction method and a mass spectrometric method using a microbore hollow fiber enzymatic reactor (mHFER) based antigen-antibody reaction and, specifically, to an extraction method and a mass spectrometric method, wherein phosphoproteins or phosphopeptides present in the body are extracted using phosphoserine-, phosphothreonine-, and phosphotyrosine-antibodies, and measured by a mass spectrometer, and thus biomarker phosphoproteins for diagnosis of diseases are found, contributing to early diagnosis of diseases. The mass spectrometric method using the antigen-antibody reaction based extraction method can: minimize temporal and economic burdens resulting from a low extraction rate and a complicated sample pre-treatment; increase the extraction efficiency by using a considerable number of phosphopeptides (or phosphoproteins) and antibodies with strong affinity; and allow the extraction of low-concentration phosphopeptides or phosphoproteins, and thus is expected to have high applicability in discovering disease diagnosis protein markers and identifying and studying mechanisms thereof.

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Patent Owner(s)

Patent OwnerAddress
KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE267 GAJEONG-RO YUSEONG-GU DAEJEON 34113 34113

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Inventor Name Address # of filed Patents Total Citations
KANG, Dukjin Daejeon, KR 2 1
KIM, Sook-Kyung Daejeon, KR 4 1
LEE, Sun Young Daejeon, KR 213 808

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