RNA Sequence and Structure Determinants of Pol III Transcriptional Termination in Human Cells.

ABSTRACT: The precise mechanism of transcription termination of the eukaryotic RNA polymerase III (Pol III) has been a subject of considerable debate. Although previous studies have clearly shown that multiple uracils at the end of RNA transcripts are required for Pol III termination, the effects of upstream RNA secondary structure in the nascent transcript on transcriptional termination is still unclear. To address this, we developed an in cellulo Pol III transcription termination assay using the recently developed Tornado-Corn RNA aptamer system to create a Pol III-transcribed RNA that produces a detectable fluorescent signal when transcribed in human cells. To study the effects of RNA sequence and structure on Pol III termination, we systematically varied the sequence context upstream of the apta

SUBMITTER: Verosloff MS 

PROVIDER: S-EPMC8169631 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature