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43120 Microbiology

A superantigen is a bacterial product that –

ABinds to B7 and CD28 costimulatory molecules
BBinds to the beta chain of TCR and MHC class II molecules of APC stimulating T cell activation
CBinds to the CD4+ molecule causing T cell activation
DIs presented by mactrophages to a larger-than-normal number of T helper CD4 + lumphocytes
Microbiology
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