The present invention provides a nucleic acid which comprises a non-specific promoter and a sequence that encodes a recombinant antibody. The antibody molecule has heterologous T cell epitopes therein such that the antibody cannot take its native conformation when the nucleic acid is expressed. The heterologous T cell epitopes are: GTGRAMLGTHTMEVTVYH in CDRH1 and CDRL3 SVYDFFVWL in CDRH2, and WNRQLYPEWTEAQRLD in CDRH3 and CDRL1 Administration of the nucleic acid results in an immune response against the T cell epitopes,
