Mouse monoclonal antibody to rat p75NTR [MC192]: IgG

Monoclonal antibody MC192 against the rat low affinity nerve growth factor receptor (p75NTR) is derived from the fusion of Sp2/0-Ag 14 myeloma cells with mouse immune splenocytes. MC192 monoclonal antibody was originally generated by Chandlers et al. p75NTR was originally discovered as a low affinity nerve growth factor receptor. Later it was found that it was the receptor for all neurotrophins. It mediates signals of neurotrophins for neuronal survival, apoptosis, neurite outgrowth and synaptic plasticity. Recently, it has been revealed that p75NTR is not only acts as the receptor for neurotrophins but also the receptor for many other pathological ligands such as prions, rabies virus and amyloid beta. p75NTR also acts as a co-receptor for NOGO which mediates inhibitory signals of myelin associated protein. p75NTR is highly expressed in a number of non-neuronal and neuronal cells including motor neurons during development and also in damaged neurons. MC192 recognizes the extracellular domain of the neurotrophin receptor p75NTR in rat. MC192 antibody may be used for immunocytochemical localisation of rat cells expressing p75NTR, ELISA and western blot. This antibody has also been used for the construction of the MC192-saporin immunotoxin for specific elimination of neuronal populations in basal forebrain cholinergic neurons to generate an animal model for Alzheimer's disease. Using Flow Cytometry, this antibody has frequently been employed for panning to isolate p75NTR-expressing rat cells. MC192 has a potential use as the ligand for gene delivery into p75NTR-expressing rat cells via a receptor-mediated mechanism. FUNCTION: Low affinity receptor which can bind to NGF, BDNF, NT-3, and NT-4. Can mediate cell survival as well as cell death of neural cells. SUBUNIT: Homodimer, disulfide-linked. Interacts with p75NTR-associated cell death executor. Interacts with NGFRAP1/BEX3. Interacts with TRAF2, TRAF4, TRAF6, PTPN13 and RANBP9. Interacts through TRAF6 with SQSTM1 which bridges NGFR to NTRK1 (By similarity). Interacts with BEX1. SUBCELLULAR LOCATION: Membrane, single-pass type I membrane protein. DOMAIN: Death domain is responsible for interaction with RANBP9. PTM: N- and O-glycosylated. PTM: Phosphorylated on serine residues. SIMILARITY: Contains 1 death domain. SIMILARITY: Contains 4 TNFR-Cys repeats.

The MC192 is supplied in lyophilised form from cell culture supernatant. This product contains 1% BSA. The lyophilised antibody is stable when stored at -20AC. For an additional stability Glycerol (1:1) may be added. After reconstitution aliquots should be kept at -20AC for a higher stability. Repetitive freeze/thaw cycle should be avoided.

Lyophilised

This monoclonal antibody has been tested for immunohistochemical localisation of p75NTR-expressing rat cells in the spinal cord and brain. This monoclonal antibody does not cross react with p75NTR-expressing cells in other species.

Specificity has been confirmed by immunohistochemical staining of lesioned sciatic nerve and spinal cord, the results reflect the reported literatures.

1. Davies A. et al (2010) The alpha2delta subunits of voltage-gated calcium channels form GPI-anchored proteins, a post translational modification essential for function Proc Natl Acad Sci U S A. Jan 26, 107(4):1654-9
2. Wilson-Gerwing T.D. et al (2009) J Comp Neurol. 2009 Sep 1, 516(1):49-58