That part of a processed antigen that binds to the major histocompatibility complex molecule; the agretope was derived from antigen restriction element. ... Origin: antigen + restriction + -tope ... (05 Mar 2000) ... 
Portion of antigen that interacts with an MHC molecule.
Type: Term Pronunciation: ag-rē′tōp Definitions: 1. That part of a processed antigen that binds to the major histocompatibility complex molecule.