Efficient non-enzymatic cleavage of Staphylococcus aureus plasmid DNAs mediated by neodymium ions
| Authors | |
|---|---|
| Year of publication | 2016 |
| Type | Article in Periodical |
| Magazine / Source | Analytical Biochemistry |
| MU Faculty or unit | |
| Citation | |
| web | http://www.sciencedirect.com/science/article/pii/S0003269716300884 |
| Doi | http://dx.doi.org/10.1016/j.ab.2016.05.013 |
| Field | Genetics and molecular biology |
| Keywords | Lanthanide Nd3+ ions; Plasmid DNA; Plasmid size; Pulsed-field agarose gel electrophoresis; Staphylococcus aureus |
| Attached files | |
| Description | Staphylococcus aureus plasmids are the main factor in the spreading of antibacterial resistance among bacterial strains that has emerged on a worldwide scale. Plasmids recovered from 12 clinical and food isolates of S. aureus were treated with 10 mM free lanthanide Nd3+ ions (non-enzymatic cleavage agent) in Hepes buffer (pH 7.5) at 70 °C. Topological forms of plasmids—closed circular (ccc), open circular (oc), and linear (lin)—produced by cleavage at different times were separated using pulsed-field agarose gel electrophoresis. The method is proposed to detect and differentiate several plasmids in the same bacterial strain according to their size. |
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