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Serotypes of sex pili

Published online by Cambridge University Press:  15 May 2009

A. M. Lawn  and
Elinor Meynell
A. M. Lawn
Affiliation:
Departments of Electron Microscopy and Microbiology, Lister Institute of Preventive Medicine, Chelsea Bridge Road, London, S.W.1
Elinor Meynell
Affiliation:
Departments of Electron Microscopy and Microbiology, Lister Institute of Preventive Medicine, Chelsea Bridge Road, London, S.W.1
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There are situations in which direct observation of the attachment of antibody molecules may be the simplest method of detecting antigen-antibody reactions. Applied to the study of the sex pili determined by a number of transmissible bacterial plasmids, the method has distinguished four serotypes in the F-like class and two in the I-like class. Antibody was usually attached haphazardly to the pili; however, in a few cases a regular periodicity could be observed. When few antibody molecules were attached, they could frequently be individually resolved and in certain antibody-pilus combinations large antibody molecules, tentatively identified as IgM, could be seen to predominate.

Type
Research Article
Information
Journal of Hygiene , Volume 68 , Issue 4 , December 1970 , pp. 683 - 694
Copyright
Copyright © Cambridge University Press 1970

References

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