6WTS:
reference: Recognition of Semaphorin Proteins by P. sordellii Lethal Toxin Reveals Principles of Receptor Specificity in Clostridial Toxins., Lee H, Beilhartz GL, Kucharska I, Raman S, Cui H, Lam MHY, Liang H, Rubinstein JL, Schramek D, Julien JP, Melnyk RA, Taipale M, Cell. 2020 Jun 23. pii: S0092-8674(20)30692-9. doi: 10.1016/j.cell.2020.06.005. PMID: 32589945

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