Systematic detection of tertiary structural modules in large RNAs and RNP interfaces by Tb-seq.

ABSTRACT: Compact RNA structural motifs control many aspects of gene expression, but we lack methods for finding these structures in the vast expanse of multi-kilobase RNAs. To adopt specific 3-D shapes, many RNA modules must compress their RNA backbones together, bringing negatively charged phosphates into close proximity. This is often accomplished by recruiting multivalent cations (usually Mg²⁺), which stabilize these sites and neutralize regions of local negative charge. Coordinated lanthanide ions, such as terbium (III) (Tb³⁺), can also be recruited to these sites, where they induce efficient RNA cleavage, thereby revealing compact RNA 3-D modules. Until now, Tb³⁺ cleavage sites were monitored via low-throughput biochemical methods only applicable to small RNAs.

SUBMITTER: Patel S 

PROVIDER: S-EPMC10255950 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature