6A90:
reference: Structural basis for the modulation of voltage-gated sodium channels by animal toxins., Shen H, Li Z, Jiang Y, Pan X, Wu J, Cristofori-Armstrong B, Smith JJ, Chin YKY, Lei J, Zhou Q, King GF, Yan N, Science. 2018 Jul 26. pii: science.aau2596. doi: 10.1126/science.aau2596. PMID: 30049784

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