E. Karlsson, C. Risinger, M. Jolkkonen, C. Wernstedt and A. Adem. Amino acid sequence of a snake venom toxin that binds to the muscarinic acetylcholine receptor. Toxicon 29, 521-526, 1991.-The green mamba, Dendroaspis angusticeps, has two protein toxins that bind to the muscarinic acetylcholine receptor. The sequence of muscarinic toxin 2 was determined with an automatic gas phase sequencer. The C-terminal residue is Asp as determined by hydrazinolysis and amino acid analysis. Toxin 2 has 65 amino acid residues and a formula weight of 7040. It is homologous to a large number of other snake venom toxins as short α-neurotoxins, cardiotoxins/cytotoxins and angusticeps-type toxins of mamba venoms. The sequence is confirmed in the accompanying article (Ducancel, F., Rowan, E. G., Cassart, E., Harvey, A. L., Menez, A. and Boulain, J.-C. Toxicon 29, 516-520, 1991).
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