Aqueous Activation of RNA 2'-OH for Conjugation with Amines and Thiols.
Aqueous Activation of RNA 2'-OH for Conjugation with Amines and Thiols.
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RNA 2-OH 的水活化用于与胺和硫醇的缀合。
DOI:
10.1021/acs.bioconjchem.3c00370
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发表时间:
2024
影响因子:
4.7
通讯作者:
Kool,EricT
中科院分区:
文献类型:
--
作者:
Shioi,Ryuta;Xiao,Lu;Kool,EricT
Strategies for covalent modification of RNA are important for enabling biological studies of the biopolymer and for enhancing properties of therapeutic RNAs. While a number of electrophiles have been observed to react with RNA, few methods exist for reaction with nucleophiles. Here, we describe new reagents that enable efficient conjugation of amines and other nucleophiles to unmodified RNA postsynthetically via transient activation of 2′-OH groups. Reaction of single-stranded RNA in aqueous solution with phenolic imidazolecarbamates at room temperature results in stoichiometric and superstoichiometric yields of imidazolecarbonyl group adducts, and control experiments with DNA confirm the site of reaction in RNA as 2′-OH. Subsequent incubation of imidazolecarbonyl-activated RNAs with primary or selected secondary amines results in rapid, high-yield conversion to carbamate conjugates. The activation and subsequent nucleophile reaction can be carried out either stepwise or in a one-pot reaction. Thiols and phenol species react to yield (thio)carbonate adducts, and amino acid sidechains also react, suggesting possible future utility for protein conjugates and analysis of protein–RNA interactions. The activation method is found to be selective to unpaired regions of RNA, and can be directed to a specific location in a strand by use of a loop-inducing helper DNA. The results establish novel and efficient reagents and methods for modifying RNA postsynthetically with nucleophiles.
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DOI:
--
发表时间:
1983
期刊:
影响因子:
--
作者:
B. Gour
通讯作者:
B. Gour
影响因子:
4.7
作者:
Fessler, Adam B.;Fowler, Anthony J.;Ogle, Craig A.
通讯作者:
Ogle, Craig A.
DOI:
--
发表时间:
2011
期刊:
Nucleosides, Nucleotides & Nucleic Acids
影响因子:
--
作者:
E. A. Khomyakova;E. Zubin;I. Smirnov;G. Pozmogova;D. Stetsenko;T. Oretskaya
通讯作者:
T. Oretskaya
DOI:
10.4068/cmj.2020.56.2.87
发表时间:
2020-05-01
期刊:
Chonnam medical journal
影响因子:
--
作者:
Kim, Young-Kook
通讯作者:
Kim, Young-Kook
影响因子:
3.5
作者:
Buettner, Lea;Seikowski, Jan;Hoebartner, Claudia
通讯作者:
Hoebartner, Claudia