期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 60, 期 35, 页码 19191-19200出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202103693
关键词
Covid19-nmr; fragment screening; NMR spectroscopy; RNA; SARS-CoV-2
资金
- state of Hesse [20007375]
- Goethe Corona Funds
- DFG [CRC902, 277478796, 277479031, 392682309, 452632086, 70653611]
- European Union [871037]
- Projekt DEAL
- state of Hesse
The study identified ligand-binding pockets in RNA elements of SARS-CoV-2 through NMR screening, selecting the most promising ones as potential drug targets. Key functional units and ligand groups for effective targeting of SARS-CoV-2 RNA were derived from the identified hits.
SARS-CoV-2 contains a positive single-stranded RNA genome of approximately 30000 nucleotides. Within this genome, 15 RNA elements were identified as conserved between SARS-CoV and SARS-CoV-2. By nuclear magnetic resonance (NMR) spectroscopy, we previously determined that these elements fold independently, in line with data from in vivo and ex-vivo structural probing experiments. These elements contain non-base-paired regions that potentially harbor ligand-binding pockets. Here, we performed an NMR-based screening of a poised fragment library of 768 compounds for binding to these RNAs, employing three different H-1-based 1D NMR binding assays. The screening identified common as well as RNA-element specific hits. The results allow selection of the most promising of the 15 RNA elements as putative drug targets. Based on the identified hits, we derive key functional units and groups in ligands for effective targeting of the RNA of SARS-CoV-2.
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