Budget Amount *help |
¥18,590,000 (Direct Cost: ¥14,300,000、Indirect Cost: ¥4,290,000)
Fiscal Year 2011: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2010: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2009: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000)
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Research Abstract |
We identified Jab1 as a C-tail binding protein of endothelin receptors (ETRs), including ET_AR and ET_BR and showed that Jab1 regulates receptor levels via ubiquitination of ETRs. We also found that ubiquitination level of ET_BR was increased upon endothelin-1 (ET-1) stimulation. Moreover, we indicated that the ubiquitination was required for ET-1-induced ET_BR internalization. Thus, we have demonstrated that ubiquitination has an important role in the regulation of trafficking of ETRs.
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