Selection for Simple Major Surface Protein 2 Variants during Anaplasma marginale Transmission to Immunologically Naïve Animals
Infection and Immunity(2007)
摘要
ABSTRACT Anaplasma marginale , a rickettsial pathogen, evades clearance in the animal host by antigenic variation. Under immune selection, A. marginale expresses complex major surface protein 2 mosaics, derived from multiple donor sequences. However, these mosaics have a selective advantage only in the presence of adaptive immunity and are rapidly replaced by simple variants following transmission.
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关键词
simple major surface protein
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