S. Sandini et al., Production of a mouse antiserum to Bacteroides fragilis enterotoxin using a recombinant enterotoxin precursor, CL DIAG LAB, 8(1), 2001, pp. 190-191
The precursor of the Bacteroides fragilis metalloprotease enterotoxin was c
loned and expressed in Escherichia coli, which was not able to process the
precursor into the biologically active enterotoxin. Mouse antiserum elicite
d to the recombinant precursor reacted with the purified enterotoxin and wi
th a crude enterotoxin preparation from an enterotoxigenic strain. The anti
serum neutralized the cytotoxic activity of the enterotoxin in HT-29 cells.