The DNA-binding network of Mycobacterium tuberculosis.

TitleThe DNA-binding network of Mycobacterium tuberculosis.
Publication TypeJournal Article
Year of Publication2015
AuthorsMinch KJ, Rustad TR, Peterson EJR, Winkler J, Reiss DJ, Ma S, Hickey M, Brabant W, Morrison B, Turkarslan S, Mawhinney C, Galagan JE, Price ND, Baliga NS, Sherman DR
JournalNat Commun
Volume6
Pagination5829
Date Published2015
ISSN2041-1723
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.

DOI10.1038/ncomms6829
Alternate JournalNat Commun
PubMed ID25581030
PubMed Central IDPMC4301838
Grant ListU19 AI106761 / AI / NIAID NIH HHS / United States