Small RNAs establish gene expression thresholds.

Abstract:

:The central role of small RNAs in regulating bacterial gene expression has been elucidated in the past years. Typically, small RNAs act via specific basepairing with target mRNAs, leading to modulation of translation initiation and mRNA stability. Quantitative studies suggest that small RNA regulation is characterized by unique features, which allow it to complement regulation at the transcriptional level. In particular, small RNAs are shown to establish a threshold for the expression of their target, providing safety mechanism against random fluctuations and transient signals. The threshold level is set by the transcription rate of the small RNA and can thus be modulated dynamically to reflect changing environmental conditions.

journal_name

Curr Opin Microbiol

authors

Levine E,Hwa T

doi

10.1016/j.mib.2008.09.016

subject

Has Abstract

pub_date

2008-12-01 00:00:00

pages

574-9

issue

6

eissn

1369-5274

issn

1879-0364

pii

S1369-5274(08)00132-X

journal_volume

11

pub_type

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