Synonyms    OB Protein, Obesity Protein, OBS, Obesity factor, Leptin. 

Introduction      A 16kDa peptide hormone secreted from white adipocytes and implicated in the regulation of food intake and energy balance. Leptin provides the key afferent signal from fat cells in the feedback system that controls body fat stores. 

Description     Leptin Human produced syntheticaly contains 35 amino acids (22-56 a.a.) having a molecular mass of 3950.6 Dalton. 

Physical Appearance     Sterile Filtered White lyophilized (freeze-dried) powder. 

Formulation     The protein was lyophilized from a concentrated (1mg/ml) solution with no additives. 

Solubility      The lyophilized Leptin is very soluble in water and most aqueous buffers below and above the isoelectric point. 

Stability      Lyophilized Leptin although stable at room temperature, should be stored desiccated below -20°C. Reconstituted Leptin is best stored refrigerated at 4°C. 

Purity      Greater than 95.0% as determined by RP-HPLC. 

Aminoacidsequence      Val-Pro-Ile-Gln-Lys-Val-Gln-Asp-Asp-Thr-Lys-Thr-Leu-Ile-Lys-Thr-Ile-Val-Thr-Arg-Ile-Asn-Asp-Ile-Ser-His-Thr-Gln-Ser-Val-Ser-Ser-Lys-Gln-Lys. 

Usage       CHI's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.