Leptin ELISA Kit (Human)
Référence OKAG00047
Conditionnement : 1plate
Marque : Aviva Systems Biology
Leptin ELISA Kit (Human) : 96 Wells (OKAG00047)
| Datasheets/Manuals | Printable datasheet for Leptin ELISA Kit (Human) : 96 Wells (OKAG00047) |
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| Predicted Species Reactivity | Homo sapiens|Human | ||||||||||||||||||
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| Product Format | 1 x 96-Well Plate or 12 x 8-Well Strips | ||||||||||||||||||
| Application | ELISA-Sandwich | ||||||||||||||||||
| ELISA Kit Detection Method | Colorimetric 450 nm | ||||||||||||||||||
| ELISA Kit Duration | 4.5 hours | ||||||||||||||||||
| ELISA Kit Principle | The Aviva Human Leptin ELISA Kit contains the components necessary for quantitative determination of natural or recombinant Human Leptin concentrations within any experimental sample including cell lysates, serum and plasma. This particular immunoassay utilizes the quantitative technique of a "Sandwich" Enzyme-Linked Immunosorbent Assay (ELISA) where the target protein (antigen) is bound in a "sandwich" format by the primary capture antibodies coated to each well-bottom and the secondary detection antibodies added subsequently by the investigator. The capture antibodies coated to the bottom of each well are specific for a particular epitope on Human Leptin while the user-added detection antibodies bind to epitopes on the captured target protein. Amid each step of the procedure, a series of wash steps must be performed to ensure the elimination of non-specific binding between proteins to other proteins or to the solid phase. After incubation and "sandwiching" of the target antigen, a peroxidase enzyme is conjugated to the constant heavy chain of the secondary antibody (either covalently or via Avidin/Streptavidin-Biotin interactions), allowing for a colorimetric reaction to ensue upon substrate addition. When the substrate TMB (3, 3’, 5, 5’-Tetramethylbenzidine) is added, the reaction catalyzed by peroxidase yields a blue color that is representative of the antigen concentration. Upon sufficient color development, the reaction can be terminated through addition of Stop Solution (2 N Sulfuric Acid) where the color of the solution will turn yellow. The absorbance of each well can then be read by a spectrophotometer, allowing for generation of a standard curve and subsequent determination of protein concentration. | ||||||||||||||||||
| ELISA Kit Range | 63-4000 pg/mL | ||||||||||||||||||
| ELISA Kit Component |
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| Reconstitution and Storage | 2°C to 8°C | ||||||||||||||||||
| Sample Type | Cell lysates, sera and plasma | ||||||||||||||||||
| Sensitivity | 63 pg/mL | ||||||||||||||||||
| Specificity | The Human Leptin ELISA is capable of recognizing both recombinant and naturally produced Human Leptin proteins. The antigens listed below were tested at 50 ng/ml and exhibited less than 5% cross reactivity. • Murine: Leptin The antigens listed below were tested at 50 ng/ml and exhibited less than 2% cross reactivity. • Rat: Leptin The antigens listed below were tested at 50 ng/ml and did not exhibit significant cross reactivity or interference. • Human: Adiponectin, gAcrp30, GLP-1, Resistin, Vaspin • Murine: Resistin | ||||||||||||||||||
| Assay Info | Quantitative Colorimentric Sandwich ELISA |
| Gene Symbol | LEP |
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| Gene Full Name | leptin |
| Alias Symbols | LEPD, leptin, leptin (murine obesity homolog), leptin (obesity homolog, mouse), OB, obese protein, obese, mouse, homolog of, obesity factor, OBS. |
| NCBI Gene Id | 3952 |
| Protein Name | Leptin |
| Description of Target | Key player in the regulation of energy balance and body weight control. Once released into the circulation, has central and peripheral effects by binding LEPR, found in many tissues, which results in the activation of several major signaling pathways (PubMed:17344214, PubMed:15899045, PubMed:19688109). In the hypothalamus, acts as an appetite-regulating factor that induces a decrease in food intake and an increase in energy consumption by inducing anorexinogenic factors and suppressing orexigenic neuropeptides, also regulates bone mass and secretion of hypothalamo-pituitary-adrenal hormones. In the periphery, increases basal metabolism, influences reproductive function, regulates pancreatic beta-cell function and insulin secretion, is pro-angiogenic for endothelial cell and affects innate and adaptive immunity (By similarity) (PubMed:8589726, PubMed:11460888, PubMed:19688109, PubMed:24340098, PubMed:25060689). In the arcuate nucleus of the hypothalamus, activates by depolarization POMC neurons inducing FOS and SOCS3 expression to release anorexigenic peptides and inhibits by hyperpolarization NPY neurons inducing SOCS3 with a consequent reduction on release of orexigenic peptides (By similarity). In addition to its known satiety inducing effect, has a modulatory role in nutrient absorption. In the intestine, reduces glucose absorption by enterocytes by activating PKC and leading to a sequential activation of p38, PI3K and ERK signaling pathways which exerts an inhibitory effect on glucose absorption (PubMed:24340098). Acts as a growth factor on certain tissues, through the activation of different signaling pathways increases expression of genes involved in cell cycle regulation such as CCND1, via JAK2-STAT3 pathway, or VEGFA, via MAPK1/3 and PI3K-AKT1 pathways (By similarity) (PubMed:17344214). May also play an apoptotic role via JAK2-STAT3 pathway and up-regulation of BIRC5 expression (PubMed:18242580). Pro-angiogenic, has mitogenic activity on vascular endothelial cells and plays a role in matrix remodeling by regulating the expression of matrix metalloproteinases (MMPs) and tissue inhibitors of metalloproteinases (TIMPs) (PubMed:11460888). In innate immunity, modulates the activity and function of neutrophils by increasing chemotaxis and the secretion of oxygen radicals. Increases phagocytosis by macrophages and enhances secretion of pro-inflammatory mediators. Increases cytotoxic ability of NK cells (PubMed:12504075). Plays a pro-inflammatory role, in synergy with IL1B, by inducing NOS2 wich promotes the production of IL6, IL8 and Prostaglandin E2, through a signaling pathway that involves JAK2, PI3K, MAP2K1/MEK1 and MAPK14/p38 (PubMed:15899045, PubMed:19688109). In adaptive immunity, promotes the switch of memory T-cells towards T helper-1 cell immune responses (By similarity). Increases CD4(+)CD25(-) T-cell proliferation and reduces autophagy during TCR (T-cell receptor) stimulation, through MTOR signaling pathway activation and BCL2 up-regulation (PubMed:25060689). |
| Uniprot ID | P41159 |
| Protein Accession # | NP_000221.1 |
| Nucleotide Accession # | NM_000230.2 |
