Fc fragment

(redirected from Fc piece)

Fc frag·ment

the crystallizable fragment of an immunoglobulin molecule composed of the constant regions of the heavy chains and responsible for binding to antibody receptors (Fc receptor) on cells and the Clq component of complement.
Synonym(s): Fc piece

Fc frag·ment

, Fc (frag'mĕnt)
The crystallizable fragment of an immunoglobulin molecule composed of part of the heavy chains and responsible for binding to antibody receptors on cells and the Clq component of complement.

Fc fragment

A small piece of an immunoglobulin (an antibody) used by macrophages in processing and presenting foreign antigens to T lymphocytes.
See: immune response; macrophage processing