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Multiple sequence alignment of the toxins: Hcr 1b-1 (P0DL87), Hcr 1b-2 (C0HL52), Hcr 1b-3 (C0HL53), Hcr 1b-4 (C0HL54) from H. crispa, and APETx2 (P61542) from A. elegantissima. Identical and conserved amino acid residues are shown on a dark and light gray background, respectively. Vector NTI software (Invitrogen, USA) [37] was used for multiple sequence alignment.
