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Transcription dynamics regulate poly(A) tails and expression of the RNA degradation machinery to balance mRNA levels

ABSTRACT: To investigate the potential influence of transcription on mRNA stability in mammalian cells, we tested the global relationship between rates of synthesis and decay of mRNAs. We estimated synthesis rates by flash 4sU labeling followed by RNA-seq, and decay rates by treating cells with Actinomycin D (ActD) for 0, 2, 4 and 6 hours and measuring half-lives of all expressed genes by MARS-seq analysis. As short-term perturbations of transcription elongation dynamics diminished mRNA stability, we next wished to examine the effect of extended transcription slowdown. To this end, we treated cells with CPT for 24 hours and profiled mRNA stability in a genome-wide manner using ActD time-course and MARS-seq.

ORGANISM(S): Homo sapiens

PROVIDER: GSE145097 | GEO | 2020/03/10

REPOSITORIES: GEO

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