by reverse passive hemagglutination these antibodies reacted strongly with kappa light chains and with fd gamma but gel diffusion analyses , absorption on affinity columns and inhibition experiments established that the anti-f ( ab ' ) 2 antibodies were not isotype specific and that there was extensive serological cross-reactivity between fd gamma and kappa and probably also between fd gamma and mu chains .
C0003241
antibodies
C0021017
isotype