paratope

paratope
That part of an antibody molecule composed of the variable regions of both the light and heavy chains that combine with the antigen. SYN: antibody-combining site, antigen-binding site. [para- + -tope]

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para·tope (parґə-tōp) [para- + -tope] an antigen-binding site of an antibody molecule. Cf. epitope.

Medical dictionary. 2011.

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