NGFR p75 or CD271 is a 75kD transmembrane glycoprotein consisting of an extracellular domain which contains four cysteine rich domains responsible for ligand binding, a transmembrane domain, and a cytoplasmic domain. NGFR p75 displays paradoxical functions when acting alone or with other receptor proteins. Working in concert with Trk receptors, it recognizes neurotrophins and transmits trophic signals into the cell. NGFR p75 is necessary for regulating neuronal growth, migration, differentiation and cell death during development of the central and peripheral nervous system.
Background References
1. "Low-affinity nerve-growth factor receptor (p75NTR) can serve as a receptor for rabies virus."Tuffereau C., Benejean J., Blondel D., Kieffer B., Flamand A.EMBO J. 17:7250-7259(1998)
2. "Solid tumor proteome and phosphoproteome analysis by high resolution mass spectrometry."Zanivan S., Gnad F., Wickstroem S.A., Geiger T., Macek B., Cox J., Faessler R., Mann M.J. Proteome Res. 7:5314-5326(2008)
Tissue Specificity
Detected in Schwann cells. Detected in embryonic brain, in hippocampus neurons (at protein level). Detected in brain and spinal cord.
Post-translational Modification
N-glycosylated. O-glycosylated.; Phosphorylated on serine residues.
Western blot analysis of CD271 on different lysates with Rabbit anti-CD271 antibody (1003-9) at 1/5,000 dilution.
Lane 1: SW480 (Human colorectal zdenocarcinoma cell) cell lysate(15 µg/Lane) Lane 2: Neuro-2a (Mouse brain neuroblastoma cell) cell lysate(15 µg/Lane) Lane 3: PC-12 (Rat pheochromocytoma cell (undifferentiated)) cell lysate(15 µg/Lane) Lane 4: mouse brain tissue lysate(30 µg/Lane) Lane 5: rat brain tissue lysate(30 µg/Lane)
Exposure time: 20 seconds; ECL: K1801
Blocking: 5% NFDM/TBST, 1 hour at room temperature Primary antibody: 1003-9, 1/5,000 in primary antibody dilution buffer (K1803), overnight at 4 ℃ Secondary antibody: Goat anti-Rabbit IgG-HRP (HA1001), 1/50,000 in 5% NFDM/TBST, 1 hour at room temperature
Predicted band size: 46 kDa
Immunocytochemistry analysis of L6 cells labeling CD271 with Rabbit anti-CD271 antibody (1003-9) at 1/50 dilution.
Cells were fixed in 4% paraformaldehyde for 10 minutes at 37 ℃, permeabilized with 0.05% Triton X-100 in PBS for 20 minutes, and then blocked with 2% negative goat serum for 30 minutes at room temperature. Cells were then incubated with Rabbit anti-CD271 antibody (1003-9) at 1/50 dilution in 2% negative goat serum overnight at 4 ℃. Goat Anti-Rabbit IgG H&L (iFluor™ 488, HA1121) was used as the secondary antibody at 1/1,000 dilution. PBS instead of the primary antibody was used as the secondary antibody only control. Nuclear DNA was labelled in blue with DAPI.
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