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EK000007-EK0472: Human Neurotrophin-3 ELISA Kit
Range 15.6pg/ml-1000pg/ml
Sensitivity < 2 pg/ml
Specificity: cross-reactivates with NT-4 <2.5%, and no detectable cross-reactivity with any other cytokine.
Application: for quantitive detection of human Neurotrophin-3 in sera, plasma, body fluids, tissue lysates or cell culture supernates.
Expiration: four months at 4°C and eight months at -20°C.
Background
Neurotrophin-3 (NT-3) is a new member of the nerve growth factor gene family, which plays an important role in the development and maintenance of the vertebrate nervous system.1 NT-3 and its receptor, called neurotrophic tyrosine kinase receptor type 3 (Ntrk3; also called TrkC), are expressed early and throughout embryogenesis.2 NT-3 is one of five neurotrophin growth factors which shape the development of the nervous system by regulating neuronal survival and differentiation.3 NT-3 may be one of the central nervous system-derived factors that mediate neural crest (NC) cell proliferation in vivo.4 NT-3 has been mapped to human chromosome 12p and mouse chromosome 6.1
Principle
The ELISA Kit is based on standard sandwich enzyme-linked immune-sorbent assay technology. The target specific antibodies are precoated onto 96-well plates. The target from the sample is bound to the microwell. The biotinylated target specific detection antibodies are added to the microwells and followed by washing with the PBS or TBS buffer. Avidin-Biotin-Peroxidase Complex is added and unbound conjugates are washed away with the PBS or TBS buffer. TMB, the HRP (horseradish peroxidase) substrate, is used to visualize color change resulting from the HRP enzymatic reaction. TMB is catalyzed by HRP to produce the blue color. The color changes into yellow after the acidic stop solution is added. The density of the yellow color is proportional to the target amount from the sample captured in the microwells.
Reference
1. Ozcelik, T.; Rosenthal, A.; Francke, U. Chromosomal mapping of brain-derived neurotrophic factor and neurotrophin-3 genes in man and mouse. Genomics 10: 569-575, 1991.
2. Tessarollo, L.; Vogel, K. S.; Palko, M. E.; Reid, S. W.; Parada, L. F. Targeted mutation in the neurotrophin-3 gene results in loss of muscle sensory neurons. Proc. Nat. Acad. Sci. 91: 11844-11848, 1994.
3. Donovan, M. J.; Hahn, R.; Tessarollo, L.; Hempstead, B. L. Identification of an essential nonneuronal function of neurotrophin 3 in mammalian cardiac development. Nature Genet. 14: 210-213, 1996.
4. Kalcheim, C.; Carmeli, C.; Rosenthal, A. Neurotrophin 3 is a mitogen for cultured neural crest cells. Proc. Nat. Acad. Sci. 89: 1661-1665, 1992.
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