金山科研平台，产品价格货期咨询微信：jinshanbio Source:E. coli-derived, Val22-Cys167, with an N-terminal Met Accession #:Q6NT58 N-terminal Sequence Analysis:Met Purity:>97%, by SDS-PAGE under reducing conditions and visualized by silver stain. Endotoxin Level: Predicted Molecular Mass:16 kDa Activity:Measured in a cell proliferation assay using BaF3 mouse pro‑B cells transfected with human Leptin R.The ED₅₀ for this effect is typically 0.4-2ng/mL. Formulation:Lyophilized from a 0.2 µm filtered solution in Tris-HCl and NaCl.See Certificate of Analysis for details. Molecule Information: Leptin/OB Aliases: LEP; OB Entrez Gene IDs: 3952 (Human); 16846 (Mouse); 25608 (Rat) Background: Leptin Leptin is a product of the mouse obese gene. Mice with mutations in the obese gene that block the synthesis of leptin are obese and diabetic, and have reduced activity, metabolism, and body temperature. Rat leptin shares approximately 96% and 82% sequence identity with the mouse and human protein, respectively. The expression of leptin mRNA is restricted to adipose tissue.