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Which of the following is the Fc receptor of NK cells that promotes lysis of antibody-coated cells?

Which of the following is the Fc receptor of NK cells that promotes lysis of antibody-coated cells? Correct Answer CD16

The Fc receptor of NK cells is CD16 which results in the lysis of antibody-coated cells. This lysis takes place by binding of CD16 to IgG antibody attached to the cells. This results in enhancement of cytotoxicity hence, also termed as Antibody-dependent cell-mediated cytotoxicity. CD16 is a low affinity molecule and as a result it only binds to clustered IgG molecules and not to circulating monomeric IgG. This Fc receptor of NK cells is also termed as FcγRIII. 

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