GST Antibodies

[Evan Burkala]

Hi,
    I was just wondering if any of the many knowledgeable people out 
there have any idea about the presence of naturally occurring antibodies 
to the GST fusion protein coded for in the pGEX vector (Pharmacia)? I 
know it comes from S. japonicum but if one is to use a fusion protein for 
detection of antibodies to the fusion partner (protein of interest) 
what is the likelihood of GST antibodies giving false-positives in ELISA 
in many different animals and even humans. Some parasite experts may 
comment on the presence of antibodies to GST in natural Schistosoma 
infection.

Any correspondence would be appreciated,
Evan Burkala
Murdoch University
Western Australia