al. 2008). The negative impact of this could be alleviated by the creation and production of a low-cost, human-compatible universal antivenom. Lethal Toxin Neutralizing Factor, henceforth LTNF, is a substance that has been isolated from opossum (Didelphis virginiana) serum, liquid component of blood. LTNF can neutralize nearly all venoms, by a mechanism not yet understood, including those never before encountered by the opossum (Menchaca & Perez 1981, Shier 2008). The active site of LTNF has been