Anti-Idiotype Antibody

**Semantic type:** Amino Acid, Peptide, or Protein|Immunologic Factor

**Definition:** An antibody directed against the individual antigenic determinants (idiotopes) on the variable region of an immunoglobulin molecule. In principle an anti-idiotype antibody should inhibit a specific immune response and they are important to the regulation of the immune system.

**Synonyms:** - Anti-Anti-Idiotype - Antibody, Anti-Idiotypic