Table 3.

Affinity constants for 125I-α-bungarotoxin binding by purified acetylcholine receptors from different species

SpeciesKd (nmol 1-1)
T. marmorata 21±4
T. macneilli 40±6
H. monopterigium 53±15
N. tasmaniensis 28±7
  • Average results are expressed as the mean ± s.e.m. of six determinations. The Kd values were not significantly different from each other (P<0.05), calculated using a paired Student's t-test.