| Budget Amount *help |
¥18,590,000 (Direct Cost: ¥14,300,000、Indirect Cost: ¥4,290,000)
Fiscal Year 2011: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2010: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2009: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
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| Research Abstract |
Ribosomes in all organisms have a unique flexible structure composed of ribosomal protein complex, termed the stalk, which plays a crucial role in ribosome function. In this research subject, we have investigated the structure and function of the ribosomal stalk in a hyperthermophilic archaeon by biochemical and crystallographic analyses. The results showed that the archaeal stalk is composed of aP0 and aP1, which form the heptameric complex aP0(aP1)_2(aP1)_2(aP1)_2, and that the C-terminal sequence, which is shared by aP1 and aP0, directly binds to translation factors. We concluded that the 7 copies of C-terminal tails of aP1/aP0 in the complex participate in efficient recruitment of translation factors onto the ribosome.
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