Abstract
Plasmids are extra-chromosomal molecules of deoxyribonucleic acid (DNA) capable of autonomous replication. Such molecules have been identified in many bacterial genera and usually exist as covalently closed circular (CCC) molecules. Plasmids range in size from less than one megaDalton (MDa) to several hundred MDa. One megaDalton of double-stranded DNA is equivalent to 1500 bp or 1.5 kilobases (kb, see Note 1).
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Schmidt, T. J., Barret, J. S., Schrader, J. S., Scherach, C. S., McGee, H. P., Feldman, R. A., and Brenner D. J. (1982) Salmonellosis associated with marijuana. A multi-state outbreak traced by plasmid fingerprinting. N. Engl. J. Med. 306, 1249–1253.
Threlfall, E. J., Hall, M. L. M., and Rowe, B. (1986) Salmonella gold-coast from outbreaks of food-poisoning in the British Isles can be differentiated by plasmid profiles. J. Hyg. 97, 115–122.
Threlfall, E. J., Hall, M. L. M., Ward, L. R., and Rowe, B. (1992) Plasmid profiles demonstrate that an upsurge in Salmonella berta in Humans in England and Wales is associated with imported poultry meat. Eur. J. Epidemiol. 8, 27–33.
Olsen, J. E., Brown, D. J., Baggesen, D. L., and Bisgaard, M. (1992) Biochemical and molecular characterization of Salmonella enterica serovar berta and comparison of methods for typing. Epidemiol. Infect. 108, 243–260.
Wray, C., Mclaren, I., Parkinson, N. M., and Beedell, Y. (1987) Differentiation of Salmonella typhimurium DT204c by plasmid profile and biotyping. Vet. Rec. 121, 514–516.
Brown, D. J., Baggesen, D. L., Hansen, H. B., Hansen, H. C., and Bisgaard, M. (1994) The characterization of Danish isolates of Salmonella enterica serovar Enteritidis by phage typing and plasmid profiling: 1980–1990. APMZS 102, 208–214.
Threlfall, E. J., Hampton, M. D., Chart, H., and Rowe, B. (1994) Use of plasmid profile typing for surveillance of Salmonella enteritidis phage type 4 from humans, poultry and eggs. Epidemiol. Infect. 112, 25–31.
Birnboim, H. C. and Doly, J. (1979) A rapid alkaline extraction procedure for screening recombinant plasmid DNA. Nucleic. Acids Res. 7, 1513–1523.
Kado, C. I. and Liu, S.-T. (1981) Rapid procedure for detection and isolation of large and small plasmids. J. Bact. 145, 1365–1373.
Platt, D. J., Chesham, J. S., Brown, D. J., Kraft, C. A., and Taggart, J. (1986) Restriction enzyme fingerprinting of enterobacterial plasmids: a simple strategy with wide application. J. Hyg. 97, 205–210.
Platt, D. J., Taggart, J., and Heraghty, K. A. (1988) Molecular divergence of the serotype-specific plasmid (pSLT) among strains of Salmonella typhimurium of human and veterinary origin and comparison of pSLT with the serotype specific plasmids of S. enteritidis and S. dublin. J. Med. Microbiol. 27, 277–284.
Brown, D. J., Threlfall, E. J., Hampton, M. D., and Rowe, B. (1993) Molecular characterization of plasmids in Salmonella enteritidis phage types. Epidemiol. Infect. 110, 209–216.
Bensaude, O. (1988) Ethidium bromide and safety. Trends Genet. 4, 89.
Macrina, F. L., Kopecko, D. J., Jones, K. R., Ayers, D. J., and McCowen, S. M. (1978) A multiple plasmid-containing Escherichia coli: convenient source of plasmid size reference molecules. Plasmid 1, 417–420.
Threlfall, E. J., Rowe, B., Ferguson, J. L., and Ward, L. R. (1986) Characterization of plasmids conferring resistance to gentamicin and apramycin in strains of Salmonella typhimurium phage type 204c isolated in Britain. J. Hyg. 97, 419–426.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1995 Humana Press Inc.
About this protocol
Cite this protocol
Threlfall, E.J., Woodford, N. (1995). Plasmid Profile Typing and Plasmid Fingerprinting. In: Howard, J., Whitcombe, D.M. (eds) Diagnostic Bacteriology Protocols. Methods in Molecular Biology™, vol 46. Humana Press. https://doi.org/10.1385/0-89603-297-3:225
Download citation
DOI: https://doi.org/10.1385/0-89603-297-3:225
Publisher Name: Humana Press
Print ISBN: 978-0-89603-297-2
Online ISBN: 978-1-59259-533-4
eBook Packages: Springer Protocols