these antibodies , either of the igg1 or igg2b isotype with affinities in the range 1-2 x 10 ( 8 ) 1/mol , recognized a single immunodominant region of native beta-bungarotoxin , most probably located on the a ( phospholipase homologue ) chain of the toxin .
C0003241
antibodies
C0021017
isotype