Conformational switch in the decoding region of 16S rRNA during aminoacyl-tRNA selection on the ribosome

Conformational switch in the decoding region of 16S rRNA during aminoacyl-tRNA selection on the ribosome
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核糖体氨酰-tRNA选择过程中16S rRNA解码区的构象转换

DOI:
10.1038/72364
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发表时间:
2000
期刊:
Nature Structural Biology
影响因子:
--
通讯作者:
M. Rodnina
M. Rodnina
中科院分区:
--
文献类型:
--
作者:
T. Pape;W. Wintermeyer;M. Rodnina

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氨基糖苷类抗生素与 16S 核糖体 RNA 的结合会诱导解码中心的特殊结构,并增加近同源氨基酸的错误掺入。通过动力学分析,我们表明这是由于近同源密码子识别复合物的稳定和限制氨基酸掺入速率的两次重排的加速。在同源编码情况下,相同的重排步骤会加速。我们认为,同源密码子识别或通过氨基糖苷结合增强的近同源密码子识别,促进 16S rRNA 从“结合”构象转变为“生产”构象,从而决定解码的保真度。
Binding of aminoglycoside antibiotics to 16S ribosomal RNA induces a particular structure of the decoding center and increases the misincorporation of near-cognate amino acids. By kinetic analysis we show that this is due to stabilization of the near-cognate codon recognition complex and the acceleration of two rearrangements that limit the rate of amino acid incorporation. The same rearrangement steps are accelerated in the cognate coding situation. We suggest that cognate codon recognition, or near-cognate codon recognition augmented by aminoglycoside binding, promote the transition of 16S rRNA from a ‘binding’ to a ‘productive’ conformation that determines the fidelity of decoding.
DOI: 10.1006/jmbi.1997.1551
发表时间: 1998-03-27
影响因子: 5.6
作者:
Fourmy, D;Yoshizawa, S;Puglisi, JD
通讯作者: Puglisi, JD
核糖体 RNA 识别密码子-反密码子螺旋。
DOI: 10.1126/science.285.5434.1722
发表时间: 1999
期刊: Science (New York, N.Y.)
影响因子: --
作者:
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通讯作者: Puglisi,JD
DOI: 10.1016/0022-2836(90)90016-f
发表时间: 1990-01-05
影响因子: 5.6
作者:
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通讯作者: NOLLER, HF
tRNA/mRNA 复合物与 16S 核糖体 RNA 解码位点的大沟结合。
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发表时间: 1999
期刊: Journal of molecular biology.
影响因子: --
作者:
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通讯作者: Harvey,SC