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9484 Microbiology

The exotoxin implicated in this patient’s disease is unusual in that it is a superantigen. This means which of the following?

AIt can bind to the inside surfaces of the normal peptide grooves of both lgA and the TCR molecule
BIt can bind to the inside surfaces of the normal peptide grooves of both lgE and the TCR molecule
CIt can bind to the inside surfaces of the normal peptide grooves of both the MHC class l molecule and the TCR molecule
DIt can bind to the outside surfaces of the normal peptide grooves of both the MHC class ll molecule and the TCR molecule (Correct Answer)