Divergent stalling sequences sense and control cellular physiology.

Divergent stalling sequences sense and control cellular physiology.
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DOI:
10.1016/j.bbrc.2010.01.073
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发表时间:
2010-02-26
影响因子:
3.1
通讯作者:
Pogliano, Kit
Pogliano, Kit
中科院分区:
生物学4区
文献类型:
--
作者:
Ito, Koreaki;Chiba, Shinobu;Pogliano, Kit

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最近的研究已经确定了几个与核糖体内部成分相互作用并阻止其自身延伸的氨基酸序列。而诱导类的停滞取决于特定的低分子量化合物,当新生链被运输穿过或插入膜时,内在类的停滞被释放。停滞的核糖体改变信使RNA二级结构,从而有助于在不同水平上调节顺式定位的靶基因表达。停滞序列是发散的,但可能利用肽键形成反应的不均匀性质,并且最近被招募到不同的生物系统,可能包括即将到来的研究中鉴定的那些。
Recent studies have identified several amino acid sequences that interact with the ribosomal interior components and arrest their own elongation. Whereas stalling of the inducible class depends on specific low-molecular weight compounds, that of the intrinsic class is released when the nascent chain is transported across or inserted into the membrane. The stalled ribosome alters messenger RNA secondary structure and thereby contributes to regulation of the cis-located target gene expression at different levels. The stalling sequences are divergent but likely to utilize non-uniform nature of the peptide bond formation reactions and are recruited relatively recently to different biological systems, possibly including those to be identified in forthcoming studies.
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