NMR Studies of HAR1 RNA Secondary Structures Reveal Conformational Dynamics in the Human RNA
NMR Studies of HAR1 RNA Secondary Structures Reveal Conformational Dynamics in the Human RNA
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HAR1 RNA 二级结构的 NMR 研究揭示了人类 RNA 的构象动力学
DOI:
10.1002/cbic.201200401
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发表时间:
1974
期刊:
影响因子:
3.2
通讯作者:
Schwalbe
中科院分区:
文献类型:
--
作者:
Ziegeler;Richter;Schwalbe
Comparative genomics has shown that noncoding RNAs can display substantial differences between humans and chimpanzees. The human accelerated region 1 (HAR1) is a section in the human genome that exhibits the most strongly accelerated rate of nucleotide substitution in relation to the chimpanzee genome. It is associated with higher cognitive functions in human brains. TheHAR1region of theHAR1Fgene is transcribed into a 118 nt noncoding RNA. We provide experimental data to validate available secondary structure models of chimpanzee and human HAR1 RNA by utilizing CD and NMR spectroscopy and applying a “divide‐and‐conquer” strategy. The mutations lead to more dynamic secondary and tertiary structure in the human HAR1 RNA, presumably as part of its function. We have also determined NMR solution structures of helix H1 as the most conserved part of the chimpanzee and human HAR1 RNAs. Helix H1 contains a GAA asymmetric internal loop, the structure of which had not been solved previously. 37 nt chimpanzee and human RNA fragments (c37 and h37 RNAs) differ in a single base pair. h37 RNA folds into a slightly more stable and rigid structure than c37 RNA. Both NMR structures show structural heterogeneity of the residues corresponding to the GAA loop.
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影响因子:
3.7
作者:
Lorenz WA;Clote P
通讯作者:
Clote P
影响因子:
--
作者:
Nozinovic S;Gupta P;Fürtig B;Richter C;Tullmann S;Duchardt-Ferner E;Holthausen MC;Schwalbe H
通讯作者:
Schwalbe H
影响因子:
--
作者:
Senada Nozinovic;Puneet Gupta;B. Fürtig;C. Richter;Sandor Tüllmann;Elke Duchardt‐Ferner;Max C. Holthausen;Harald Schwalbe
通讯作者:
Harald Schwalbe
影响因子:
2.2
作者:
V. Sklenar;A. Bax
通讯作者:
A. Bax
影响因子:
14.9
作者:
Lu, XJ;Olson, WK
通讯作者:
Olson, WK