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What is the mechanism of action of Staphylococcus aureus protein A?

1 Answer

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Answer:

binds the Fc region of antibody (Ab), thereby preventing normal phagocytosis

Step-by-step explanation:

aureus (SA) or SpA that is freely secreted binds the Fc region of antibody (Ab), thereby preventing normal phagocytosis (right panel). Alternatively, SpA binds the Fab regions of the B-cell receptor (lower left panel), which induces B-cell death and prevents the production of antibody specific for S.

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