Antigenic variation refers to the mechanism by which an infectious organism such as a protozoan, bacterium or virus alters its surface proteins in order to evade a host immune response. It is related to phase variation. Immune evasion is particularly important for organisms that target long-lived hosts, repeatedly infect a single host and are easi...
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http://en.wikipedia.org/wiki/Antigenic_variation
(from the article `protozoan`) ...which is attached to the cell surface, and replace it with a coat containing different amino acid sequences. Thus, the parasite essentially ...
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http://www.britannica.com/eb/a-z/a/83
The phenomenon of changes in surface antigens in parasitic populations of Trypanosoma and Plasmodium (and some other parasitic protozoa) in order to escape immunological defense mechanisms. at least 100 different surface proteins have been found to appear and disappear during antigenic variation in a clone of trypanosomes. Each antigen is encoded i...
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http://www.encyclo.co.uk/local/20973
The phenomenon of changes in surface antigens in parasitic populations of Trypanosoma > Trypanosoma and Plasmodium > Plasmodium (and some other parasitic protozoa) in order to escape immunological defence mechanisms. At least 100 different surface proteins have been found to appear and disappear during antigenic variation in a clone of trypanosomes. Each antigen is encoded in a separate gene. Antigenic variation is also known to occur in free-liv …
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http://www.encyclo.co.uk/visitor-contributions.php
changing of surface antigens (carbohydrates or proteins) such that they are no longer recognized by the host’s immune system
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https://courses.lumenlearning.com/microbiology/chapter/glossary/
No exact match found.
