Discovery of widespread GTP-binding motifs in genomic DNA and RNA.

Discovery of widespread GTP-binding motifs in genomic DNA and RNA.
复制标题

DOI:
10.1016/j.chembiol.2013.02.015
复制
发表时间:
2013-04-18
影响因子:
--
通讯作者:
Liu DR
Liu DR
中科院分区:
生物1区
文献类型:
--
作者:
Curtis EA;Liu DR

文献摘要

参考文献

被引文献

相似文献

结合小分子的生物rna参与了多种调控和催化过程。受这些例子的启发,我们使用体外选择来搜索天然存在的GTP适配体的基因组编码RNA片段池。鉴定了几种适体,包括一种具有G-四重结构的适体(“G基序”)。进一步分析表明,大多数RNA和DNA g -四联体结合GTP。真核生物中含有丰富的G基序,人类基因组包含约75000个解离常数与真核细胞的GTP浓度相当(约300µM)。g -四联体在多种细胞过程中发挥作用,我们的发现提出了GTP可能在这些元素的功能中发挥作用的可能性。与这种可能性相一致的是,几类调节性g -四联体的序列要求与GTP结合的序列要求相似。
Biological RNAs that bind small-molecules have been implicated in a variety of regulatory and catalytic processes. Inspired by these examples, we used in vitro selection to search a pool of genomeencoded RNA fragments for naturally occurring GTP aptamers. Several classes of aptamers were identified, including one ("the G motif") with a G-quadruplex structure. Further analysis revealed that most RNA and DNA G-quadruplexes bind GTP. The G motif is abundant in eukaryotes, and the human genome contains ∼75,000 examples with dissociation constants comparable to the GTP concentration of a eukaryotic cell (∼300 µM). G-quadruplexes play roles in diverse cellular processes, and our findings raise the possibility that GTP may play a role in the function of these elements. Consistent with this possibility, the sequence requirements of several classes of regulatory G-quadruplexes parallel those of GTP binding.
DOI: 10.1093/nar/gks068
发表时间: 2012-06
影响因子: 14.9
作者:
Bugaut A;Balasubramanian S
通讯作者: Balasubramanian S
DOI: 10.1093/nar/gkp696
发表时间: 2009-11
影响因子: 14.9
作者:
Halder K;Wieland M;Hartig JS
通讯作者: Hartig JS
DOI: 10.1126/science.7513905
发表时间: 1994-05-20
期刊: SCIENCE
影响因子: 56.9
作者:
CONNELL, GJ;YARUS, M
通讯作者: YARUS, M
DOI: 10.1021/bi8010797
发表时间: 2008-12-02
期刊: BIOCHEMISTRY
影响因子: 2.9
作者:
Kumari, Sunita;Bugaut, Anthony;Balasubramanian, Shankar
通讯作者: Balasubramanian, Shankar
DOI: 10.1093/nar/gkp026
发表时间: 2009-04
影响因子: 14.9
作者:
Kypr J;Kejnovská I;Renciuk D;Vorlícková M
通讯作者: Vorlícková M