paratope

https://doi.org/10.1351/goldbook.13536
Site in the variable region of an antibody or T-cell receptor (TCR) that binds to an epitope of an antigen.
Source:
PAC, 2012, 84, 1113. (IUPAC glossary of terms used in immunotoxicology (IUPAC Recommendations 2012)) on page 1224 [Terms] [Paper]