Elucidation of production mechanism of peptidyl-tRNAs dropped from ribosomes in bacterial translation system
Elucidation of production mechanism of peptidyl-tRNAs dropped from ribosomes in bacterial translation system
批准号:
23780102
负责人:
NAGAO Asuteka
金额:
$2.91万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Young Scientists (B)
财政年份:
2011
资助国家:
日本
项目状态:
已结题
起止时间:
2011 至 2012
中文摘要
利用LC/MS分析和RNA分离技术,我们直接分析和表征了在延伸过程中从核糖体上解离的肽基-tRNA。当每个单独的pep-tRNA被分离并详细分析时,我们发现其新生链与任何大肠杆菌基因都不匹配的非同源肽基-tRNA也从核糖体中脱落。这提示了肽基转移反应后一种新的质量控制机制,即非同源肽基-tRNA可被核糖体排斥。
英文摘要
We directly analyzed and characterized peptidyl-tRNAs which were dissociated from the ribosome during elongation by using LC/MS analyses and RNA isolation technique. When each individual pep-tRNA was isolated and analyzed in detail, we found that noncognate peptidyl-tRNAs whose nascent chains didn’t match any of E.coli genes were also dropped from the ribosome. This suggested a novel quality control mechanism after peptidyltransfer reaction, namely noncognate peptidyl-tRNAs can berejected from the ribosome.
期刊论文(0)
专著(0)
科研奖励(0)
会议论文
翻訳初期段階におけるペプチジルtRNAの脱落と校正機構
翻译早期阶段的肽基-tRNA脱落和校对机制
DOI:
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发表时间:
2016
期刊:
影响因子:
--
作者:
[Hiroki Takai, Tetsu Akiyama et al., Tsutomu Suzuki and Tomoyuki Numata, Tsutomu Suzuki, Tsutomu Suzuki, 鈴木 勉, Tsutomu Suzuki, 鈴木 勉, Tsutomu Suzuki, Tsutomu Suzuki, Tsutomu Suzuki, 鈴木 勉, Tsutomu Suzuki, 鈴木 勉, 鈴木 勉, Tsutomu Suzuki, Tsutomu Suzuki, Tsutomu Suzuki, 鈴木 勉]
通讯作者:
鈴木 勉
Quality control of protein synthesis by peptidyl-tRNA drop off in the early elongation stage
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批准号:25660053
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项目类别:Grant-in-Aid for Challenging Exploratory Research
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资助金额:$2.5万
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财政年份:2013
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负责人:NAGAO Asuteka
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依托单位:
海外基金