The biological role played by a material entity when bound by a receptor of the adaptive immune system. Specific site on an antigen to which an antibody binds.
benzylpenicilloate(1−)
(CHEBI:61220)
is conjugate base of
benzylpenicilloic acid
(CHEBI:61222)
benzylpenicilloate(2−)
(CHEBI:63418)
is conjugate base of
benzylpenicilloic acid
(CHEBI:61222)