Title |
The MtrAB two-component system controls antibiotic production in Streptomyces coelicolor A3(2)
|
---|---|
Published in |
Microbiology, September 2017
|
DOI | 10.1099/mic.0.000524 |
Pubmed ID | |
Authors |
Nicolle F. Som, Daniel Heine, Neil Holmes, Felicity Knowles, Govind Chandra, Ryan F. Seipke, Paul A. Hoskisson, Barrie Wilkinson, Matthew I. Hutchings |
Abstract |
MtrAB is a highly conserved two-component system implicated in the regulation of cell division in the Actinobacteria. It coordinates DNA replication with cell division in the unicellular Mycobacterium tuberculosis and links antibiotic production to sporulation in the filamentous Streptomyces venezuelae. Chloramphenicol biosynthesis is directly regulated by MtrA in S. venezuelae and deletion of mtrB constitutively activates MtrA and results in constitutive over-production of chloramphenicol. Here we report that in Streptomyces coelicolor, MtrA binds to sites upstream of developmental genes and the genes encoding ActII-1, ActII-4 and RedZ, which are cluster-situated regulators of the antibiotics actinorhodin (Act) and undecylprodigiosin (Red). Consistent with this, deletion of mtrB switches on the production of Act, Red and streptorubin B, a product of the Red pathway. Thus, we propose that MtrA is a key regulator that links antibiotic production to development and can be used to upregulate antibiotic production in distantly related streptomycetes. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
United Kingdom | 17 | 50% |
France | 2 | 6% |
Germany | 1 | 3% |
Unknown | 14 | 41% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 22 | 65% |
Scientists | 11 | 32% |
Science communicators (journalists, bloggers, editors) | 1 | 3% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 74 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 16 | 22% |
Student > Bachelor | 12 | 16% |
Student > Master | 11 | 15% |
Researcher | 3 | 4% |
Professor > Associate Professor | 2 | 3% |
Other | 4 | 5% |
Unknown | 26 | 35% |
Readers by discipline | Count | As % |
---|---|---|
Agricultural and Biological Sciences | 18 | 24% |
Biochemistry, Genetics and Molecular Biology | 15 | 20% |
Immunology and Microbiology | 6 | 8% |
Chemistry | 2 | 3% |
Environmental Science | 1 | 1% |
Other | 2 | 3% |
Unknown | 30 | 41% |