New information content in RNA base pairing deduced from quantitative analysis of high-resolution structures.
New information content in RNA base pairing deduced from quantitative analysis of high-resolution structures.
复制标题
从高分辨率结构的定量分析中推导出 RNA 碱基配对的新信息内容。
DOI:
10.1016/j.ymeth.2008.12.003
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发表时间:
2009-03
期刊:
影响因子:
4.8
通讯作者:
Lu, Xiang-Jun
中科院分区:
文献类型:
--
作者:
Olson, Wilma K.;Esguerra, Mauricio;Xin, Yurong;Lu, Xiang-Jun
关键词:
Non-canonical base pairs play important roles in organizing the complex three-dimensional folding of RNA. Here, we outline methodology developed both to analyze the spatial patterns of interacting base pairs in known RNA structures and to reconstruct models from the collective experimental information. We focus attention on the structural context and deformability of the seven pairing patterns found in greatest abundance in the helical segments in a set of well-resolved crystal structures, including (i–ii) the canonical A·U and G·C Watson-Crick base pairs, (iii) the G·U wobble pair, (iv) the sheared G·A pair, (v) the A·U Hoogsteen pair, (vi) the U·U wobble pair, and (vii) the G·A Watson-Crick-like pair. The non-canonical pairs stand out from the canonical associations in terms of apparent deformability, spanning a broader range of conformational states as measured by the six rigid-body parameters used to describe the spatial arrangements of the interacting bases, the root-mean-square deviations of the base-pair atoms, and the fluctuations in hydrogen-bonding geometry. The deformabilties, the modes of base-pair deformation, and the preferred sites of occurrence depend on sequence. We also characterize the positioning and overlap of the base pairs with respect to the base pairs that stack immediately above and below them in double-helical fragments. We incorporate the observed positions of the bases, base pairs, and intervening phosphorus atoms in models to predict the effects of the non-canonical interactions on overall helical structure.
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影响因子:
14.9
作者:
Leontis, NB;Stombaugh, J;Westhof, E
通讯作者:
Westhof, E
DOI:
10.1080/07391102.2006.10507108
发表时间:
2006-10-01
影响因子:
4.4
作者:
Das, Jhuma;Mukherjee, Shayantani;Bhattacharyya, Dhananjay
通讯作者:
Bhattacharyya, Dhananjay
影响因子:
5.6
作者:
GORIN, AA;ZHURKIN, VB;OLSON, WK
通讯作者:
OLSON, WK
影响因子:
5.6
作者:
Lee, JC;Gutell, RR
通讯作者:
Gutell, RR
影响因子:
3.4
作者:
BERMAN, HM;OLSON, WK;SCHNEIDER, B
通讯作者:
SCHNEIDER, B