DNA Tiling Enables Precise Acylation-Based Labeling and Control of mRNA.
DNA Tiling Enables Precise Acylation-Based Labeling and Control of mRNA.
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DOI:
10.1002/anie.202112106
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发表时间:
2021-12-13
期刊:
影响因子:
--
通讯作者:
Kool ET
中科院分区:
文献类型:
--
作者:
Xiao L;Jun YW;Kool ET
Methods for site-selective labeling of long, native RNAs are needed for studying mRNA biology and future therapies. Current approaches involve engineering RNA sequences, which may alter folding, or are limited to specific sequences or bases. Here, we describe a versatile strategy for mRNA conjugation via a novel DNA tiling approach. The method, TRAIL, exploits a pool of “protector” oligodeoxynucleotides to hybridize and block the mRNA, combined with an “inducer” DNA that extrudes a reactive RNA loop for acylation at a predetermined site. Using TRAIL, an azido-acylimidazole reagent was employed for labeling and controlling RNA for multiple applications in vitro and in cells, including analysis of RNA-binding proteins, imaging mRNA in cells, and analysis and control of translation. The TRAIL approach offers an efficient and accessible way to label and manipulate RNAs of virtually any length or origin without altering native sequence. INH: A general method that enables site-localized acylation of mRNA at virtually any determined sites is described. The TRAIL method utilizes a novel DNA tiling strategy by hybridizing a pool of inexpensive “protector” DNAs to block mRNA and combining with an “inducer” DNA to extrude a reactive RNA loop for acylation. This approach can be employed for both mRNA labeling and control for multiple applications.
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