The structural plasticity of nucleic acid duplexes revealed by WAXS and MD.
The structural plasticity of nucleic acid duplexes revealed by WAXS and MD.
复制标题
蜡和MD揭示的核酸双链体的结构可塑性。
DOI:
10.1126/sciadv.abf6106
复制
发表时间:
2021-04
期刊:
影响因子:
13.6
通讯作者:
Kirmizialtin S
中科院分区:
文献类型:
--
作者:
He W;Chen YL;Pollack L;Kirmizialtin S
The structural diversity of nucleic acid duplexes reflects the critical roles of sequence, ions, and waters. Double-stranded DNA (dsDNA) and RNA (dsRNA) helices display an unusual structural diversity. Some structural variations are linked to sequence and may serve as signaling units for protein-binding partners. Therefore, elucidating the mechanisms and factors that modulate these variations is of fundamental importance. While the structural diversity of dsDNA has been extensively studied, similar studies have not been performed for dsRNA. Because of the increasing awareness of RNA’s diverse biological roles, such studies are timely and increasingly important. We integrate solution x-ray scattering at wide angles (WAXS) with all-atom molecular dynamics simulations to explore the conformational ensemble of duplex topologies for different sequences and salt conditions. These tightly coordinated studies identify robust correlations between features in the WAXS profiles and duplex geometry and enable atomic-level insights into the structural diversity of DNA and RNA duplexes. Notably, dsRNA displays a marked sensitivity to the valence and identity of its associated cations.
登录
查看更多内容
影响因子:
5.5
作者:
Hess, Berk;Kutzner, Carsten;Lindahl, Erik
通讯作者:
Lindahl, Erik
DOI:
10.1073/pnas.86.6.1816
发表时间:
1989-03-01
影响因子:
11.1
作者:
DIGABRIELE, AD;SANDERSON, MR;STEITZ, TA
通讯作者:
STEITZ, TA
影响因子:
8.6
作者:
Drozdetski AV;Tolokh IS;Pollack L;Baker N;Onufriev AV
通讯作者:
Onufriev AV
影响因子:
13.6
作者:
Bottaro S;Bussi G;Kennedy SD;Turner DH;Lindorff-Larsen K
通讯作者:
Lindorff-Larsen K
DOI:
10.1073/pnas.91.9.3579
发表时间:
1994-04-26
影响因子:
11.1
作者:
DICKERSON, RE;GOODSELL, DS;NEIDLE, S
通讯作者:
NEIDLE, S