2DDA:
reference: Structures of pseudechetoxin and pseudecin, two snake-venom cysteine-rich secretory proteins that target cyclic nucleotide-gated ion channels: implications for movement of the C-terminal cysteine-rich domain., Suzuki N, Yamazaki Y, Brown RL, Fujimoto Z, Morita T, Mizuno H, Acta Crystallogr D Biol Crystallogr. 2008 Oct;64(Pt 10):1034-42. Epub 2008, Sep 19. PMID: 18931410

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