Table 1.

Comparison of the minimum amounts of purified 14CDTA proteins required to promote 100% agglutination of rabbit erythrocytes

Protein preparationAmt of protein (in pmols) required to promote 100% hemagglutination of 2% (vol/vol) rabbit erythrocytesa
14CDTA-HIS3.61 ± 2.77
14CDTA-TETC5.28 ± 1.74
Toxin A0.05 ± 0.002
TTNo hemagglutinationb
  • a Values shown represent means ± standard errors of the means from three separate experiments, each performed in duplicate with protein taken from three different batches of purified protein.

  • b 10 pmol tested.