Human Leptin ELISA Kit | LEP elisa kit

Human Leptin ELISA Kit

Cat. Num. AAA825012

• Gene Names: LEP; OB; OBS; LEPD
• Reactivity: Human
• Applications: ELISA
• Synonyms: Leptin; Human Leptin ELISA Kit; OB; OBS; Obese protein; Obesity factor; LEP elisa kit

• Reactivity: Human
• Specificity: The Human Leptin ELISA Kit allows for the detection and quantification of endogenous levels of natural and/or recombinant Human Leptin proteins within the range of 62.5 pg/ml - 4000 pg/ml.
• Sequence Length: 167

• Applicable Applications for LEP elisa kit: Sandwich ELISA (SE)
• Samples: Cell Culture Supernatants, Serum, Plasma, Tissue Homogenates
• Sensitivity: The minimum detectable dose of Human Leptin is typically less than 10 pg/ml.
• Preparation and Storage: Shipped and store at 4 degree C for 6 months, store at -20 degree C for one year. Avoid freeze/thaw cycles.

Typical Testing Data/Standard Curve (for reference only)

Related Product Information for LEP elisa kit

Principle of the assay: The Human Leptin ELISA (Enzyme-Linked Immunosorbent Assay) kit is an in vitro enzyme-linked immunosorbent assay for the quantitative measurement of Human Leptin in Cell Culture Supernatants, Serum, Plasma, Tissue Homogenates. This assay employs an antibody specific for Human Leptin coated on a 96-well plate. Standards and samples are pipetted into the wells and Leptin present in a sample is bound to the wells by the immobilized antibody. The wells are washed and biotinylated anti-Human Leptin antibody is added. After washing away unbound biotinylated antibody, HRP-conjugated streptavidin is pipetted to the wells. The wells are again washed, a TMB substrate solution is added to the wells and color develops in proportion to the amount of Leptin bound. The Stop Solution changes the color from blue to yellow, and the intensity of the color is measured at 450 nm.

Background: Leptin (or obese, OB) is a circulating hormone that is expressed abundantly and specifically in the adipose tissue. Human ob protein is a 166-amino acid polypeptide with a putative signal sequence and is 84 and 83% homologous to the mouse and rat ob proteins, respectively. Northern blot analysis reveals that OB RNA is present at a high level in adipose tissue but at much lower levels in placenta and heart. Indeed, Leptin is first described as an adipocyte-derived signalling factor, which, after interaction with its receptors, induces a complex response including control of bodyweight and energy expenditure. Leptin seems in addition to its role in metabolic control to have important roles in reproduction and neuroendocrine signalling. Leptin is a powerful inhibitor of bone formation in vivo. Comparative mapping of mouse and human DNA indicates that the ob gene is located within a region of mouse chromosome 6 that is homologous to a portion of human chromosome 7q.

NCBI and Uniprot Product Information

• NCBI GI #: 4557715
• NCBI GeneID: 3952
• NCBI Accession #: NP_000221.1
• NCBI GenBank Nucleotide #: NM_000230.2
• UniProt Accession #: P41159; O15158; Q56A88
• Molecular Weight: 18,641 Da
• NCBI Official Full Name: leptin
• NCBI Official Synonym Full Names: leptin
• NCBI Official Symbol: LEP
• NCBI Official Synonym Symbols: OB; OBS; LEPD
• NCBI Protein Information: leptin; obese protein; obesity factor; obese, mouse, homolog of; leptin (murine obesity homolog); leptin (obesity homolog, mouse)
• UniProt Protein Name: Leptin
• Protein Family: Leptin
• UniProt Gene Name: LEP
• UniProt Synonym Gene Names: OB; OBS
• UniProt Entry Name: LEP_HUMAN

NCBI Description

This gene encodes a protein that is secreted by white adipocytes, and which plays a major role in the regulation of body weight. This protein, which acts through the leptin receptor, functions as part of a signaling pathway that can inhibit food intake and/or regulate energy expenditure to maintain constancy of the adipose mass. This protein also has several endocrine functions, and is involved in the regulation of immune and inflammatory responses, hematopoiesis, angiogenesis and wound healing. Mutations in this gene and/or its regulatory regions cause severe obesity, and morbid obesity with hypogonadism. This gene has also been linked to type 2 diabetes mellitus development. [provided by RefSeq, Jul 2008]

Uniprot Description

leptin: May function as part of a signaling pathway that acts to regulate the size of the body fat depot. An increase in the level of LEP may act directly or indirectly on the CNS to inhibit food intake and/or regulate energy expenditure as part of a homeostatic mechanism to maintain constancy of the adipose mass. Defects in LEP may be a cause of obesity (OBESITY). It is a condition characterized by an increase of body weight beyond the limitation of skeletal and physical requirements, as the result of excessive accumulation of body fat. Belongs to the leptin family.

Protein type: Cell development/differentiation; Secreted, signal peptide; Hormone; Secreted

Chromosomal Location of Human Ortholog: 7q31.3

Cellular Component: extracellular space; cytoplasm; extracellular region

Molecular Function: growth factor activity; peptide hormone receptor binding; hormone activity

Biological Process: circadian rhythm; response to dietary excess; positive regulation of myeloid cell differentiation; regulation of fat cell differentiation; regulation of steroid biosynthetic process; female pregnancy; negative regulation of transcription from RNA polymerase II promoter; glucose homeostasis; positive regulation of luteinizing hormone secretion; negative regulation of appetite; positive regulation of tyrosine phosphorylation of Stat3 protein; response to insulin stimulus; response to vitamin E; regulation of cholesterol absorption; positive regulation of MAPKKK cascade; regulation of blood pressure; positive regulation of cell proliferation; positive regulation of ion transport; placenta development; central nervous system neuron development; positive regulation of cytokine production; cholesterol metabolic process; positive regulation of developmental growth; bile acid metabolic process; eating behavior; glucose metabolic process; adult feeding behavior; ovulation from ovarian follicle; leptin-mediated signaling pathway; negative regulation of vasoconstriction; tyrosine phosphorylation of STAT protein; fatty acid beta-oxidation; glycerol biosynthetic process; insulin secretion; response to hypoxia; energy reserve metabolic process; hormone metabolic process; regulation of gluconeogenesis; positive regulation of follicle-stimulating hormone secretion; positive regulation of insulin receptor signaling pathway; leukocyte tethering or rolling; regulation of insulin secretion; negative regulation of apoptosis

Disease: Leptin Deficiency