Decoding in the absence of a codon by tmRNA and SmpB in the ribosome.

Decoding in the absence of a codon by tmRNA and SmpB in the ribosome.
复制标题

DOI:
10.1126/science.1217039
复制
发表时间:
2012-03-16
期刊:
Science (New York, N.Y.)
影响因子:
--
通讯作者:
Ramakrishnan V
Ramakrishnan V
中科院分区:
其他
文献类型:
--
作者:
Neubauer C;Gillet R;Kelley AC;Ramakrishnan V

文献摘要

参考文献

被引文献

相似文献

在细菌中,被截断的信息末端停滞不前的核糖体被tmRNA和SmpB拯救,tmRNA是一种同时充当tRNA和mRNA的双功能分子,SmpB是一种与tmRNA协同工作的小蛋白。在这里,我们给出了结合在核糖体上的tmRNA片段SmpB和延伸因子Tu在3.2?分辨率下的晶体结构。该结构显示了SmpB如何在核糖体A位缺少mRNA密码子的情况下发挥tRNA反密码子环和部分mRNA的作用,并解释了为什么tmRNA-SmpB系统不干扰正常翻译。
In bacteria, ribosomes stalled at the end of truncated messages are rescued by tmRNA, a bifunctional molecule that acts as both a tRNA and mRNA, and SmpB, a small protein that works in concert with tmRNA. Here we present the crystal structure at 3.2 Å resolution of a tmRNA fragment, SmpB and elongation factor Tu bound to the ribosome. The structure shows how SmpB plays the role of both the anticodon loop of tRNA and portions of mRNA to facilitate decoding in the absence of an mRNA codon in the A site of the ribosome, and explains why the tmRNA-SmpB system does not interfere with normal translation.
DOI: 10.1016/j.jsb.2009.10.015
发表时间: 2010-03-01
影响因子: 3
作者:
Cheng, Kimberley;Ivanova, Natalia;Lindahl, Martin
通讯作者: Lindahl, Martin
DOI: 10.1126/science.1060612
发表时间: 2001-05-04
期刊: SCIENCE
影响因子: 56.9
作者:
Ogle, JM;Brodersen, DE;Ramakrishnan, V
通讯作者: Ramakrishnan, V
DOI: 10.1073/pnas.91.20.9223
发表时间: 1994-09-27
影响因子: 11.1
作者:
KOMINE, Y;KITABATAKE, M;INOKUCHI, H
通讯作者: INOKUCHI, H
DOI: 10.1016/j.molcel.2008.02.002
发表时间: 2008-02-29
期刊: MOLECULAR CELL
影响因子: 16
作者:
Martin, Andreas;Baker, Tania A.;Sauer, Robert T.
通讯作者: Sauer, Robert T.
DOI: 10.1038/embor.2008.243
发表时间: 2009-02-01
期刊: EMBO REPORTS
影响因子: 7.7
作者:
Nonin-Lecomte, Sylvie;Germain-Amiot, Noella;Felden, Brice
通讯作者: Felden, Brice