Title |
The Role of DNA Restriction-Modification Systems in the Biology of Bacillus anthracis
|
---|---|
Published in |
Frontiers in Microbiology, January 2016
|
DOI | 10.3389/fmicb.2016.00011 |
Pubmed ID | |
Authors |
Ramakrishnan Sitaraman |
Abstract |
Restriction-modification (R-M) systems are widespread among prokaryotes and, depending on their type, may be viewed as selfish genetic elements that persist as toxin-antitoxin modules, or as cellular defense systems against phage infection that confer a selective advantage to the host bacterium. Studies in the last decade have made it amply clear that these two options do not exhaust the list of possible biological roles for R-M systems. Their presence in a cell may also have a bearing on other processes such as horizontal gene transfer and gene regulation. From genome sequencing and experimental data, we know that Bacillus anthracis encodes at least three methylation-dependent (typeIV) restriction endonucleases (RE), and an orphan DNA methyltransferase. In this article, we first present an outline of our current knowledge of R-M systems in B. anthracis. Based on available DNA sequence data, and on our current understanding of the functions of similar genes in other systems, we conclude with hypotheses on the possible roles of the three REs and the orphan DNA methyltransferase. |
X Demographics
As of 1 July 2024, you may notice a temporary increase in the numbers of X profiles with Unknown location. Click here to learn more.
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 3 | 100% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Scientists | 2 | 67% |
Members of the public | 1 | 33% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Japan | 1 | 1% |
Unknown | 95 | 99% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 19 | 20% |
Student > Bachelor | 16 | 17% |
Student > Master | 10 | 10% |
Student > Doctoral Student | 7 | 7% |
Researcher | 6 | 6% |
Other | 5 | 5% |
Unknown | 33 | 34% |
Readers by discipline | Count | As % |
---|---|---|
Biochemistry, Genetics and Molecular Biology | 25 | 26% |
Agricultural and Biological Sciences | 24 | 25% |
Immunology and Microbiology | 6 | 6% |
Medicine and Dentistry | 2 | 2% |
Environmental Science | 1 | 1% |
Other | 4 | 4% |
Unknown | 34 | 35% |