Beta-nerve growth factor plays a central role in neuronal survival, differentiation, and synaptic plasticity, making it an essential tool for neuroscience research. This tag-free recombinant human NGF, covering the full-length mature protein (aa 122–241), demonstrates potent bioactivity with an ED50 of 0.03–0.3 ng/mL in a TF-1 cell proliferation assay, supporting use in neuronal and stem cell differentiation studies, cell survival assays, and receptor-ligand binding experiments such as TrkA/p75NTR competition assays by ELISA or SPR. Produced in *E. coli*, the protein lacks glycosylation—an advantage for researchers who require a homogeneous, well-defined preparation suitable for quantitative binding kinetics or as a calibration standard in antibody characterization workflows. Purity exceeding 95% by SDS-PAGE and endotoxin levels below 1.0 EU/μg together satisfy the criteria typically required for sensitive cell-based bioassays and in vivo regenerative medicine models.
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