True about protein A of staph aureus ?
Correct Answer: Binds to Fc pa of IgG
Description: Ans. is 'b' i.e., Binds to Fc pa of IgG Protein 'A' binds to Fc terminal of IgG (IgG 1, 2 & 4 but not IgG3) and prevents opsonophagocytosis by PMNs.It is a B-cell mitogen. It is chemotactic, anti-complementory and antiphagocytic.
Category:
Microbiology
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