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Published on: November 12, 2012
Biosafety and selectable markers
Richard W Titball1, Anders Sjostedt, Martin S Pavelka
1Defence Science and Technology Laboratory, Porton Down, Salisbury, SP4 0JQ, United Kingdom. rwtitball@dstl.gov.uk
Annals of the New York Academy of Sciences
|April 10, 2007
Summary
Francisella tularensis (F. tularensis) is a highly infectious bacterium causing debilitating tularemia. Safe laboratory practices, including containment level 3 for virulent strains, are crucial for handling this pathogen.
Area of Science:
- Microbiology
- Infectious Diseases
- Occupational Safety
Background:
- Francisella tularensis (F. tularensis) is a highly infectious bacterial pathogen.
- Tularemia, the disease caused by F. tularensis, is rarely fatal with antibiotics but can be severely debilitating.
- Laboratory work with F. tularensis presents significant occupational hazards.
Purpose of the Study:
- To highlight the infectious nature of F. tularensis.
- To emphasize the importance of safety protocols in laboratory settings.
- To discuss considerations for vaccine development and antibiotic resistance markers.
Main Methods:
- Review of F. tularensis characteristics and associated risks.
- Discussion of containment requirements for handling virulent strains.
- Consideration of vaccine potential and antibiotic resistance marker selection.
Main Results:
- F. tularensis is a major infectious threat requiring stringent safety measures.
- Containment level 3 is recommended for work with human virulent strains.
- Vaccines and careful selection of antibiotic resistance markers are important for future strategies.
Conclusions:
- Strict adherence to laboratory safety protocols is essential when working with F. tularensis.
- Further development of vaccines and understanding of antibiotic resistance are needed.
- Appropriate facilities, trained personnel, and safe working practices are paramount.
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Labeling DNA Probes
DNA probes are fragments of DNA labeled with a reporter tag to enable their detection or purification. The resulting labeled DNA probes can then hybridize to target nucleic acid sequences through complementary base-pairing, and may be used to recover or identify these regions.
Radioisotopes, fluorophores, or small molecule binding partners like biotin or digoxigenin, are the most widely used reporter tags for labeling DNA probes. These labels can be attached to the probe DNA molecule via...
Radioisotopes, fluorophores, or small molecule binding partners like biotin or digoxigenin, are the most widely used reporter tags for labeling DNA probes. These labels can be attached to the probe DNA molecule via...
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The recognition sites for Cre recombinase called LoxP...
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