5LR0:
reference: Structural basis for the unique ganglioside and cell membrane recognition mechanism of botulinum neurotoxin DC., Zhang S, Berntsson RP, Tepp WH, Tao L, Johnson EA, Stenmark P, Dong M, Nat Commun. 2017 Nov 21;8(1):1637. doi: 10.1038/s41467-017-01534-z. PMID: 29158482

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