This antiserum against Mouse Leptin has been tested for use in ELISA and immunoblotting. Reactivity in other immunoassays is unknown. Obesity associated leptin is the product of the OB gene and has been identified with Type II diabetes. This product has been assayed by immunoblot against tissue homogenates using HRP Goat-anti-Rabbit IgG [H&L] (code # 611-1302) and TMB as a substrate. A working dilution range of 1:200 to 1:400 is suggested for this application. This product has been assayed by ELISA against recombinant mouse leptin using HRP Conjugated Anti-Rabbit IgG [H&L] (Goat) (code # 611-1302) and ABTS as a substrate for 30 minutes at room temperature. A working dilution of 1:2,400 is suggested for this product.