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Gibco
Human Leptin Recombinant Protein
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Product Details
PHP0013
Product Specifications
Species
Human
Expression System
E. coli
Amino acid sequence
Human Leptin recombinant protein contains 147 amino acids
Molecular weight
16 kDa
Class
Recombinant
Type
Protein
Purity
>98% by SDS-PAGE
Endotoxin concentration
<0.1 ng/µg
Activity
Determined active in the ob/ob mouse obesity model. The ob/ob mice were treated via intraperitoneal injection once daily at a dose of 5 µg Leptin/gm of body weight for 7 days. Significant effects on body weight, food consumption, and plasma glucose levels were observed compared to saline-treated controls.
Conjugate
Form
Lyophilized
Purification
purified
Storage buffer
0.1% TFA
Contains
no preservative
Storage conditions
-20°C
Shipping conditions
Wet ice (domestic); Wet or Dry ice (international)
Product Specific Information
Reconstitution: We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute leptin in sterile, distilled water to a concentration of 1.0-5.0 mg/mL. Do not vortex. This solution can be stored at 2°C to 8°C for up to 1 week. For extended storage, it is recommended to further dilute in a buffer containing a carrier protein, such as 0.1% BSA and store in working aliquots at -20°C to -80°C.
Storage: The lyophilized protein is stable at room temperature for 1 month, but should be kept at -20°C for long term storage. Working aliquots stored with a carrier protein are stable for at least 3 months at -20°C to -80°C. Avoid repeated freeze/thaw cycles.
Target Information
Leptin is a 167 amino acid long protein hormone with important effects in regulating body weight, metabolism and reproductive function. Leptin is approximately 16 kDa in mass and encoded by the obese (ob) gene. Leptin is expressed predominantly by adipocytes, which fits with the idea that body weight is sensed as the total mass of fat in the body. Smaller amounts of leptin are also secreted by cells in the epithelium of the stomach and in the placenta. Leptin receptors are highly expressed in areas of the hypothalamus known to be important in regulating body weight, as well as in T lymphocytes and vascular endothelial cells. Leptin's effects on body weight are mediated through effects on hypothalamic centers that control feeding behavior and hunger, body temperature and energy expenditure. Leptin is involved in regulating food intake, energy expenditure, and adiposity through hypothalamic leptin receptors. Leptin promotes hematopoiesis, angiogenesis, wound healing, inflammation, immune responses, influences pubertal development and fetal growth. Studies have investigated the role of leptin in obesity, anorexia nervosa, insulin resistance, and hypertension. Leptin also has thermogenic actions and regulates enzymes of fatty acid oxidation. Severe hereditary obesity in rodents and humans can be caused by defects in leptin production.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
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Bioinformatics
Protein Aliases: CD295 antigen; H-Leptin; HuB219; LEP-R; Leptin; leptin (murine obesity homolog); leptin (obesity homolog, mouse); OB-R; Obese protein; obese, mouse, homolog of; obesity; Obesity factor; obesity protein
Gene Aliases: LEP; LEPD; OB; OBS
UniProt ID: (Human) P41159
Entrez Gene ID: (Human) 3952
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