SpecificityThis antibody recognises p75NTR (low affinity neurotrophin receptor) Reacts with human, cat, dog, pig, rabbit and sheep. Does not react with rat or mouse.
Species ReactivityCat, Dog, Human, Pig, Rabbit, Sheep
Immunogen DescriptionThe p75NTR antibody was derived from immunization of mice with human WM245 melanoma cells.
ConjugateUnconjugated
Purity DescriptionImmunoglobulin (IgG1) was purified using Protein G column (Amersham Pharmacia), polished with Sephacryl 200HR (Amersham Pharmacia) in PBS and then lyophilized. Purity was analysed using electrophoresis, 4-12% Bis Tris Gel (Invitrogen).
Application DetailsImmunohistochemistry, immunofluorescence. Suggested working dilutions: For Immunohistochemistry a concentration of 2 µg/mL is recommended. Antibody not appropriate for Western Blot or flow cytometry. At least 1 in 5000 dilution is recommended for 1 site ELISAs. Biosensis recommends optimal dilutions/concentrations should be determined by the end user.
TargetNGFR/p75 neurotrophin receptor (p75NTR)
SpecificityThis antibody recognises p75NTR (low affinity neurotrophin receptor) Reacts with human, cat, dog, pig, rabbit and sheep. Does not react with rat or mouse.
Target Host SpeciesHuman
Species ReactivityCat, Dog, Human, Pig, Rabbit, Sheep
Antibody HostMouse
Antibody TypeMonoclonal
Antibody IsotypeIgG1
Clone NameME20.4
ConjugateUnconjugated
Immunogen DescriptionThe p75NTR antibody was derived from immunization of mice with human WM245 melanoma cells.
Purity DescriptionImmunoglobulin (IgG1) was purified using Protein G column (Amersham Pharmacia), polished with Sephacryl 200HR (Amersham Pharmacia) in PBS and then lyophilized. Purity was analysed using electrophoresis, 4-12% Bis Tris Gel (Invitrogen).
FormatLyophilized
Reconstitution InstructionsSpin vial briefly before opening. Reconstitute with the addition of 100 µL sterile-filtered, ultrapure water. Centrifuge to remove any insoluble material.
Storage InstructionsAfter reconstitution keep aliquots at -20°C for a higher stability, and at 2-8°C with an appropriate antibacterial agent. Glycerol (1:1) may be added for an additional stability. Avoid repetitive freeze/thaw cycles.
Batch NumberPlease see item label.
Expiration Date12 months after date of receipt (unopened vial).
Scientific BackgroundNerve growth factor receptor (NGFR) is also referred to as p75(NTR) due to its molecular mass and its ability to bind at low affinity not only NGF (see 162030), but also other neurotrophins, including brain-derived neurotrophic factor (BDNF; 113505), neurotrophin-3 (NTF3; 162660), and neurotrophin-4/5 (NTF5; 162662). At the time of its discovery, NGFR was considered a unique type of protein. Subsequently, however, a large superfamily of tumor necrosis factor receptors were found to share the overall structure of NGFR (4 extracellular ligand-binding, cysteine-rich repeats, or CRs, and signaling through association with, or disassociation from, cytoplasmic interactors). The identification of this superfamily helped elucidate some of the biologic functions of NGFR, including its ultimate involvement in the nuclear factor kappa-B (NFKB; see 164011) and apoptosis pathways. As a monomer, NGFR binds NGF with low affinity. Higher affinity binding is achieved by association with higher molecular mass, low-affinity neurotrophin receptors, namely the tropomyosin receptor kinases, TRKA (NTRK1; 191315), TRKB (NTRK2; 600456), and TRKC (NTRK3; 191316). TRKA, TRKB, and TRKC are specific for or 'preferred by' NGF, NTF5 and BDNF, and NTF3, respectively (Ip et al., 1993). NTF3 also binds to TRKA and TRKB, but with significantly lower affinity
Specific ReferencesLiu W. et al (2012) Distribution of P75 neurotrophin receptor in adult human cochlea-an immunohistochemical study. Cell Tissue Res. 2012 Mar 31. Inoue K. et al. (2009) Differential expression of stem-cell-associated markers in human hair follicle epithelial cells. Lab Invest. 2009 Aug;89(8):844-56. Ariga M. et al. (2008) Functional role of sortilin in myogenesis and development of insulin-responsive glucose transport system in C2C12 myocytes J Biol Chem. 2008 Apr 11;283(15):10208-20 Rogers ML et al (2010) ProNGF mediates death of Natural Killer cells through activation of the p75NTR-sortilin complex. J Neuroimmunol. 2010 Sep 14;226(1-2):93-103. Jiao et al. Differentiation defect in neural crest-derived smooth muscle cells in patients with aortopathy associated with bicuspid aortic valves. EBioMedicine (2016) 10:282-90.