Alignment of the amino acid sequence for TSTI0052S, from T. stigmurus venom glands, with known sequences of IGFBP (insulin-like growth factor-binding protein). Residues are numbered according to aligned IGFBP sequences and dots represent gaps introduced to improve alignment. The underlined amino acids indicate the putative signal peptide. Conserved cystein residues are indicated by asterisks. The IGFBP domain is highlighted by a box. Green, red and gray indicate amino acids that are identical, conserved or similar, respectively. The GenBank accession number for aligned IGFBP sequences are: Lychas mucronatus (P0CJ14), Mesobuthus eupeus (CAY61895), Tityus discrepans (ABR21044), Acromyrmex echinatior (EGI69650).