Transcriptome wide annotation of eukaryotic RNase III reactivity and degradation signals.

Abstract:

:Detection and validation of the RNA degradation signals controlling transcriptome stability are essential steps for understanding how cells regulate gene expression. Here we present complete genomic and biochemical annotations of the signals required for RNA degradation by the dsRNA specific ribonuclease III (Rnt1p) and examine its impact on transcriptome expression. Rnt1p cleavage signals are randomly distributed in the yeast genome, and encompass a wide variety of sequences, indicating that transcriptome stability is not determined by the recurrence of a fixed cleavage motif. Instead, RNA reactivity is defined by the sequence and structural context in which the cleavage sites are located. Reactive signals are often associated with transiently expressed genes, and their impact on RNA expression is linked to growth conditions. Together, the data suggest that Rnt1p reactivity is triggered by malleable RNA degradation signals that permit dynamic response to changes in growth conditions.

journal_name

PLoS Genet

journal_title

PLoS genetics

authors

Gagnon J,Lavoie M,Catala M,Malenfant F,Elela SA

doi

10.1371/journal.pgen.1005000

subject

Has Abstract

pub_date

2015-02-13 00:00:00

pages

e1005000

issue

2

eissn

1553-7390

issn

1553-7404

pii

PGENETICS-D-14-01414

journal_volume

11

pub_type

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