THREE-DIMENSIONAL STRUCTURE IN SOLUTION OF THE RIBBON DISULFIDE ISOMER OF THE NICOTINIC ACETYLCHOLINE RECEPTOR ANTAGONIST ALPHA-CONOTOXIN TxIA - El Hamdaoui, Y.; Wu, X.; Clark, R. J.; Garibaldi, J.; Anangi, R.; Craik, D. J.; King, G. F.; Dutertre, S.; Kaas, Q.; Herzig, V.; Nicke, A. (Biological Magnetic Resonance Bank, 2020)