Leptin Receptor Protein, Human

蛋白长度：A DNA sequence encoding the extracellular domain (Met 1-Asp 839) of human leptin receptor (NP_002294.2) was expressed, fused with a C-terminal polyhistidine tag.

性质：

表达系统：HEK293 Cells

种属：Human

氨基酸序：Met1-Asp839

标签类型：C-His

分子量：The recombinant human LEPR consists of 829 amino acids and has a predicted molecular mass of 95 kDa. In SDS-PAGE under reducing conditions, the apparent molecular mass of rh LEPR is approximately 130-140 kDa due to glycosylation.

活性：Measured by its binding ability in a functional ELISA. Immobilized human Leptin at 5 μg/ml (100 μl/well) can bind human Leptin receptor with a linear range of 0.032-4.0 μg/ml.

内毒素：< 1.0 EU per μg of the protein as determined by the LAL method.

基因名称：leptin receptor

通用名：LEPR

蛋白序参考：NP_002294.2

总结：Leptin Receptor or CD295 belongs to the gp130 family of cytokine receptors that are known to stimulate gene transcription via activation of cytosolic STAT proteins. This protein is a receptor for leptin (an adipocyte-specific hormone that regulates body weight) and is involved in the regulation of fat metabolism, as well as in a novel hematopoietic pathway that is required for normal lymphopoiesis. Leptin Receptor/CD295 is transmembrane catalytic receptors found on NPY/AgRP and alpha-MSH/CART neurons in hypothalamic nuclei. Leptin receptors (Ob-Rs) are coded for by one human gene that produces six different isoforms; Ob-Ra - Ob-Rf. Ob-Rs exist as constitutive dimers at physiological expression levels. Only the Ob-Rb isoform can transduce intracellular signals and does so through activation of the JAK2/STAT3, PI 3-K, and MAPK signaling cascades. Activation of Ob-Rs mediates transcriptional regulation of the hypothalamic melanocortin pathway and downregulates endocannabinoid expression. Leptin acts via leptin receptors. Leptin resistance has been proposed as a pathophysiological mechanism of obesity. In obese individuals, Ob-Ra (which is involved in the active transport of leptin across the blood-brain barrier) expression is downregulated and the individual may be unresponsive to leptin signals. Ob-R antagonists are of great interest in the development of pharmacological treatments for obesity. Mutations in the Leptin Receptor/CD295 have been associated with obesity and pituitary dysfunction.

形式：Lyophilized

纯度：> 95 % as determined by SDS-PAGE.

储存条件：In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature. Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise. Stable for 1 year at -20°C or below from date of shipment. For maximum recovery of product, centrifuge the original vial after thawing and opening the cap. For long-term storage, aliquot and store at -20°C or below. Avoid repeated freeze-thaw cycles.

储存溶液：Lyophilized from sterile PBS, pH 7.4. Please contact us for any concerns or special requirements. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hard copy of CoA.

别名：CD295 Protein, Human; LEP-R Protein, Human; LEPRD Protein, Human; OB-R Protein, Human; OBR Protein, Human