| Nerve Growth Factor (NGF) | ||
|---|---|---|
| Protein Name | Beta-nerve growth factor | |
| Gene | [NGF](/genes/ngf) | |
| UniProt ID | Protein Family | Neurotrophin |
| Structure | Homodimer, each subunit ~120 aa | |
| Molecular Weight | ~26 kDa (dimer) | |
| Receptors | TrkA (NTRK1), p75NTR (TNFRSF1B) | |
| Subcellular Localization | Secreted, extracellular | |
| Expression | Brain, peripheral nervous system, immune cells | |
| Disease Associations | Alzheimer's Disease, Peripheral Neuropathy | |
Nerve Growth Factor (Ngf) is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
Nerve Growth Factor (NGF) is the prototypical member of the neurotrophin family of growth factors, playing a fundamental role in the development, maintenance, and plasticity of specific neuronal populations in both the central and peripheral nervous systems. As the first growth factor ever discovered, NGF has served as a paradigm for understanding neurotrophic factor biology and remains a major focus of research in neurodegenerative diseases and neural repair.[1]
NGF is synthesized as a pre-propeptide that undergoes proteolytic processing:
The three-dimensional structure reveals a homodimer with each monomer containing a cysteine knot motif, a characteristic of the neurotrophin family.[2]
During development, NGF is essential for:
In the adult nervous system, NGF continues to modulate:
The high-affinity TrkA receptor mediates the classic neurotrophic effects of NGF:[3]
The p75 neurotrophin receptor modulates NGF responses:[4]
NGF therapy has been investigated for AD due to:[3:1]
Clinical approaches have included:
Clinical trials have explored NGF for:
The discovery of NGF by Rita Levi-Montalcini and Stanley Cohen in the 1950s revolutionized neuroscience:[1:1]
The study of Nerve Growth Factor (Ngf) has evolved significantly over the past decades. Research in this area has revealed important insights into the underlying mechanisms of neurodegeneration and continues to drive therapeutic development.
Historical context and key discoveries in this field have shaped our current understanding and will continue to guide future research directions.
Levi-Montalcini R. The nerve growth factor: thirty-five years later. 1987. ↩︎ ↩︎
Wiesmann C, Ultsch MH, Bass SH, de Vos AM. [Crystal structure of nerve growth factor at 2.6 Å resolution](https://doi.org/10.1016/S0969-2126(96). 1996. ↩︎
Chao MV. Neurotrophins and their receptors: a convergence point for many signalling pathways. 2003. ↩︎ ↩︎
Hempstead BL. [The many faces of p75NTR](https://doi.org/10.1016/S0959-4388(02). 2002. ↩︎