[Heat-stable coli bacterial enterotoxin of bovine origin is similar to those of porcine and human origin].

: The heat-stable enterotoxins produced by strains S126A and 510 of bovine origin have been purified to homogeneity. Their amino acid sequences are identical and correspond to that of the heat stable enterotoxin isolated from porcine origin: Asn-Thr-Phe-Thr-Cys-Cys-Glu-Leu-Cys-Cys-Asn-Pro-Ala-Cys-Ala-Gly-Cys-Tyr.