Supplemental material

Files in this Data Supplement:

• Supplemental file 1 - Supplemental text; Table S1, secondary structural elements; Fig. S1, topology of β-toxin; Fig. S2, superposition of three SMases; Fig. S3, superposition of Cα’s of β-toxin, bovine DNase I, and human HAP1 endonuclease; Fig. S4, hemolysis of β-toxin, H289N, and H150Nv
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