Technical Data
L1670-10C
Leptin, Recombinant, Mouse (Ob, Obese Protein, Obesity Factor)
200ug
1mg
Molecular Biology Storage: -70CShipping: Blue Ice
Leptin inhibits food intake and stimulates energy expenditure. Leptin also has thermogenic actions and regulates enzymes of fatty acid oxidation. Severe hereditary obesity in rodents and humans is caused by defects in leptin production.In addition to its critical role in the physiologic regulation of body weight leptin has a variety of other physiologic and pathologic functions resembling those of cytokines. These functions include the regulation of hematopoiesis, angiogenesis, wound healing, inflammation, and immune responses.

Biological Activity: Recombinant mouse Leptin is fully biologically active when compared to standards. Biological activity of Murine Leptin is performed 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 5g Leptin/gram body weight for a period of 14 days. Significant effects on body weight, food consumption, and plasma glucose levels were observed to saline-treated controls.

AA Sequence:
MVPIQKVQDD TKTLIKTIVT RINDISHTQS VSAKQRVTGL DFIPGLHPIL SLSKMDQTLA VYQQVLTSLP SQNVLQIAND LENLRDLLHL LAFSKSCSLP QTSGLQKPES LDGVLEASLY STEVVALSRL QGSLQDILQQ LDVSPEC

Storage and Stability:
Lyophilized powder may be stored at -20C. Stable for 12 months at -20C. Reconstitute with sterile ddH2O, aliquot and store at -20C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.

Molecular Weight:
16.3kD
Source: Recombinant, murine, E. coli
Purity: 95% as determined by RP-HPLC; Reducing and non-reducing SDS-PAGE.
Form: Supplied as a lyophilized powder. Reconstitute with sterile dH2O PBS to 0.1-1mg/ml, which can be further diluted into other aqueous solutions.

Important Note: This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.
1. Admission plasma leptin level strongly correlates with the success of thrombolytic therapy in patients with acute myocardial infarction. Angiology 2006 Dec-2007 Jan;57(6):671-80
2. Leptin effect on nitric oxide and GnRH-induced FSH secretion from ovine pituitary cells in vitro. J Physiol Pharmacol 2006 Dec;57(4):637-47
3. Clinical and molecular genetic spectrum of congenital deficiency of the leptin receptor. N Engl J Med 2007 Jan 18;356(3):237-47
4. Serum leptin and insulin levels in lactating protein-restricted rats: implications for energy balance. Br J Nutr 2007 Jan;97(1):27-34
5. Association of adipocytokines (leptin, adiponectin TNF-alpha), insulin and proinsulin with diabetes--the Mumbai Obesity Project [MOP]. J Assoc Physicians India 2006 Sep;54:689-96
6. The contributions of plasma IGF-I, IGFBP-3 and leptin to growth in extremely premature infants during the first two years. Pediatr Res 2007 Jan;61(1):99-104.

Intended for research use only. Not for use in human, therapeutic, or diagnostic applications.