| Budget Amount *help |
¥18,330,000 (Direct Cost: ¥14,100,000、Indirect Cost: ¥4,230,000)
Fiscal Year 2011: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2010: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
Fiscal Year 2009: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
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| Research Abstract |
We analyzed proteome in cultured cells after bile acid stimulation, and found quantitative variation for posttranslational modifications of α-enolase and peroxiredoxin-1. By cleavable affinity gel extraction, we found intracellular carrier proteins and some enzymes for bile acid metabolism besides peroxiredoxin-1 as bile acid binding proteins in hepatocytes. We developed a method for one 18O-atom labeling at C-terminal of tryptic digested peptides, which allowed application to quantitative proteomics. The method for comprehensive analysis of bile acid conjugates developed in this study was useful for finding specific metabolites in some diseases.
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