Affinities of different three-finger toxins toward nAChRs and acetylcholine-binding proteins
α7-nAChR is the human neuronal homopentameric nAChR, Tca-nAChR is the Torpedo californica muscle-type nAChR; Ac- and Ls-AChBP are L. stagnalis and Aplysia californica acetylcholine-binding proteins, respectively. ND means not determined.