 Guangxitoxin is found in the venom of the tarantula "Plesiophrictus guangxiensis", which lives mainly in Guangxi province of southern China.Guangxitoxin consists of multiple subtypes, including GxTX-1D, GxTX-1E and GxTX-2.GxTX-2 shows sequence similarities with Hanatoxin (HaTX), Stromatoxin-1 (ScTx1), and "Scodra griseipes" toxin (SGTx) peptides.