||Mouse IL-18BP is a circulating glycoprotein, which functions as an IL-18 antagonist by binding to IL-18 with high affinity and neutralizing its biological activity. IL-18BP has no amino acid sequence homology to IL-18 or IL-1 receptors. The gene for human IL-18BP encodes at least four isoforms by alternative splicing. The IL-18BP isoforms A and C each contain one immunoglobulin (Ig)-like C2-type domain while isoforms B and D lack the complete Ig domain. The complete Ig domain has been shown to be essential for IL-18BPs binding and neutralizing properties. Several poxviruses have been shown to encode proteins with sequence similarity to human and mouse IL-18BPs that also bind and inhibit IL-18 bioactivities. This could lead to viral modulation of host immune responses.
||The predicted molecular weight of Recombinant Mouse IL-18 BPd is Mr 44.5 kDa. However, the actual molecular weight as observed by migration on SDS Page is Mr 60-70 kDa.
|State Of Matter:
||>90% by SDS Page and analyzed by silver stain.
||<1.0 EU/µg as determined by the LAL method.
|Storage And Stability:
||This lyophilized protein is stable for six to twelve months when stored desiccated at -20°Cto -70°C. After aseptic reconstitution, this protein may be stored at 2°Cto 8°Cfor one month or at -20°Cto -70°Cin a manual defrost freezer. Avoid Repeated Freeze Thaw Cycles. See Product Insert for exact lot specific storage instructions.