Leptin, human recombinant

Alternate Names / Synonyms: OB Protein, Obesity Protein, OBS, Obesity factor.

Gene Symbol: LEP

Accession #: P41159

Gene ID: 3952

Gene Source: Human

Recombinant Host: E. coli

Appearance: Lyophilized protein

Physical Form: Sterile filtered and lyophilized

Molecular Weight: 16.0 kDa

Purity by SDS-PAGE: ≥98%

Purity by HPLC: ≥98%

Endotoxin Level: <0.1 ng/μg

Biological Activity: BioVision’s human Leptin has been shown to be biologically active in two different mouse obesity models, ob/ob and NZO. Both strains of mice were treated via intraperitoneal injection once daily at a dose of 5 mg Leptin/gm of body weight for 7 days. Significant effects on body weight, food consumption, and plasma glucose levels were observed to saline-treated controls.

Reconstitution: Add 15 mM sterile HCl (0.5 ml/1 mg vial or 5 ml/10 mg vial) to the vial. After the protein is completely dissolved, add 7.5 mM sterile NaOH (0.3 ml/1 mg vial or 3 ml/10 mg vial) to bring the pH to approximately 5.2.

Storage Temp.: -20°C

Shipping: Gel pack

Background Information: Leptin (Anti-Obesity Protein) is the protein product of the ob (obese) gene in mice and seems to be involved in appetite control. The ob gene is expressed in adipose tissue and is thought to regulate the body’s fat stores. Mice with the ob/ob genotype also develop a form of diabetes similar to type II (non-insulin dependent) diabetes. Human Leptin is a 16 kDa protein containing 146 amino acid residues.

Handling: Centrifuge the vial prior to opening.