Intricate Genetic Programs Controlling Dormancy in Mycobacterium tuberculosis
- Inst. for Systems Biology, Seattle, WA (United States); OSTI
- Inst. for Systems Biology, Seattle, WA (United States)
- Inst. for Systems Biology, Seattle, WA (United States); Univ. of Washington, Seattle, WA (United States). Molecular and Cellular Biology Program; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Mycobacterium tuberculosis (MTB) displays the remarkable ability to transition in and out of dormancy, a hallmark of the pathogen’s capacity to evade the immune system and exploit susceptible individuals. Uncovering the gene regulatory programs that underlie the phenotypic shifts in MTB during disease latency and reactivation has posed a challenge. We develop an experimental system to precisely control dissolved oxygen levels in MTB cultures in order to capture the transcriptional events that unfold as MTB transitions into and out of hypoxia-induced dormancy. Using a comprehensive genome-wide transcription factor binding map and insights from network topology analysis, we identify regulatory circuits that deterministically drive sequential transitions across six transcriptionally and functionally distinct states encompassing more than three-fifths of the MTB genome. The architecture of the genetic programs explains the transcriptional dynamics underlying synchronous entry of cells into a dormant state that is primed to infect the host upon encountering favorable conditions.
- Research Organization:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- National Institute of Allergy and Infectious Diseases (NIAID); National Science Foundation (NSF); USDOE Office of Science (SC), Biological and Environmental Research (BER)
- Grant/Contract Number:
- AC02-05CH11231
- OSTI ID:
- 1816119
- Journal Information:
- Cell Reports, Journal Name: Cell Reports Journal Issue: 4 Vol. 31; ISSN 2211-1247
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
PathTracer Comprehensively Identifies Hypoxia-Induced Dormancy Adaptations in Mycobacterium tuberculosis
A comprehensive map of genome-wide gene regulation in Mycobacterium tuberculosis
Mycobacterium tuberculosis Ser/Thr protein kinase B mediates an oxygen-dependent replication switch
Journal Article
·
Tue Sep 26 20:00:00 EDT 2023
· Journal of Chemical Information and Modeling
·
OSTI ID:2204207
A comprehensive map of genome-wide gene regulation in Mycobacterium tuberculosis
Journal Article
·
Mon Mar 30 20:00:00 EDT 2015
· Scientific Data
·
OSTI ID:1624540
Mycobacterium tuberculosis Ser/Thr protein kinase B mediates an oxygen-dependent replication switch
Journal Article
·
Mon Jan 06 23:00:00 EST 2014
· PLoS Biology, 12(1):Article No. e1001746
·
OSTI ID:1115803