A substance that stimulates the immune system to produce a set of specific @A00384-1@ and that combines with the @A00384-2@ through a specific @B00649@ or @E02171@.
Source: PAC, 1992, 64, 143. (Glossary for chemists of terms used in biotechnology (IUPAC Recommendations 1992)) on page 146 [Terms] [Paper]