Direct identification of base-paired RNA nucleotides by correlated chemical probing.
Direct identification of base-paired RNA nucleotides by correlated chemical probing.
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DOI:
10.1261/rna.058586.116
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发表时间:
2017-01
期刊:
影响因子:
--
通讯作者:
Dokholyan NV
中科院分区:
文献类型:
--
作者:
Krokhotin A;Mustoe AM;Weeks KM;Dokholyan NV
Many RNA molecules fold into complex secondary and tertiary structures that play critical roles in biological function. Among the best-established methods for examining RNA structure are chemical probing experiments, which can report on local nucleotide structure in a concise and extensible manner. While probing data are highly useful for inferring overall RNA secondary structure, these data do not directly measure through-space base-pairing interactions. We recently introduced an approach for single-molecule correlated chemical probing with dimethyl sulfate (DMS) that measures RNA interaction groups by mutational profiling (RING-MaP). RING-MaP experiments reveal diverse through-space interactions corresponding to both secondary and tertiary structure. Here we develop a framework for using RING-MaP data to directly and robustly identify canonical base pairs in RNA. When applied to three representative RNAs, this framework identified 20%–50% of accepted base pairs with a <10% false discovery rate, allowing detection of 88% of duplexes containing four or more base pairs, including pseudoknotted pairs. We further show that base pairs determined from RING-MaP analysis significantly improve secondary structure modeling. RING-MaP-based correlated chemical probing represents a direct, experimentally concise, and accurate approach for detection of individual base pairs and helices and should greatly facilitate structure modeling for complex RNAs.
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影响因子:
4.1
作者:
Magnus M;Matelska D;Lach G;Chojnowski G;Boniecki MJ;Purta E;Dawson W;Dunin-Horkawicz S;Bujnicki JM
通讯作者:
Bujnicki JM
DOI:
10.1261/rna.043323.113
发表时间:
2014-06
期刊:
RNA (New York, N.Y.)
影响因子:
--
作者:
Rice GM;Leonard CW;Weeks KM
通讯作者:
Weeks KM
影响因子:
21.8
作者:
通讯作者:
--
DOI:
10.1073/pnas.171319598
发表时间:
2001-08-28
影响因子:
11.1
作者:
Bayfield, MA;Dahlberg, AE;Barta, A
通讯作者:
Barta, A
影响因子:
2.9
作者:
Kladwang, Wipapat;Das, Rhiju
通讯作者:
Das, Rhiju