The DNA-binding network of Mycobacterium tuberculosis.

Nat Commun
Authors
Keywords
Abstract

Mycobacterium tuberculosis (MTB) infects 30% of all humans and kills someone every 20-30 s. Here we report genome-wide binding for ~80% of all predicted MTB transcription factors (TFs), and assayed global expression following induction of each TF. The MTB DNA-binding network consists of ~16,000 binding events from 154 TFs. We identify >50 TF-DNA consensus motifs and >1,150 promoter-binding events directly associated with proximal gene regulation. An additional ~4,200 binding events are in promoter windows and represent strong candidates for direct transcriptional regulation under appropriate environmental conditions. However, we also identify >10,000 'dormant' DNA-binding events that cannot be linked directly with proximal transcriptional control, suggesting that widespread DNA binding may be a common feature that should be considered when developing global models of coordinated gene expression.

Year of Publication
2015
Journal
Nat Commun
Volume
6
Pages
5829
Date Published
2015 Jan 12
ISSN
2041-1723
URL
DOI
10.1038/ncomms6829
PubMed ID
25581030
PubMed Central ID
PMC4301838
Links
Grant list
T32 AI007509 / AI / NIAID NIH HHS / United States
T32AI007509 / AI / NIAID NIH HHS / United States
HHSN272200800059C / AI / NIAID NIH HHS / United States
P50 GM076547 / GM / NIGMS NIH HHS / United States
2P50GM076547 / GM / NIGMS NIH HHS / United States
U19 AI106761 / AI / NIAID NIH HHS / United States