it was found that for the most specific antibody the main epitope encompassed the 2-histaminyl-1,4-benzoquinone moiety and that the kd value determined by indirect elisa was 1.5 x 10 ( -8 ) m for the hapten part of the immunogen and 4.6 x 10 ( -10 ) m for a histamine-bq-ovalbumin conjugate .
C0003316
epitope
C0003320
immunogen