Alignment of the amino acid partial sequence for TSTI0056S, from T. stigmurus venom glands, with known sodium channel toxins (β-NaTX). Residues are numbered according to the aligned sodium channel toxins (β-NaTX) sequences and dots represent gaps introduced to improve alignment. The putative signal peptide is omitted. Conserved cystein residues are indicated by asterisks. Green, red and gray indicate amino acids that are identical, conserved or similar, respectively. The abbreviation and GenBank accession number for the aligned sodium channel toxins sequences are: Tpa8, Tityus pachyurus, sodium channel toxin (CCD31437); IsomTx2, Isometrus vittatus , potassium channel toxin (P0C5H2).