G3Bp1 Protein is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
| G3BP1 Protein |
|---|
| Protein Name | Ras-GTPase-Activating Protein Binding Protein 1 |
| Gene | G3BP1 |
| UniProt ID | Q9UBZ9 |
| PDB IDs | 3DIY, 3WHU, 5D75 |
| Molecular Weight | 56 kDa |
| Subcellular Localization | Cytoplasm, stress granules, nucleus |
| Protein Family | G3BP family |
G3BP1 PROTEIN is a gene/protein encoding a key neuronal protein involved in synaptic function, signal transduction, and cellular homeostasis. Dysfunction of G3BP1 PROTEIN is associated with neurodegenerative diseases including Alzheimer's disease, Parkinson's disease, and related disorders.
G3BP1 is a 524-amino acid protein containing:
- NTF2-like domain: Central fold for dimerization
- RRM (RNA Recognition Motif): RNA binding capability
- RG-rich region: Low-complexity, prion-like domain
- C-terminal domain: Protein-protein interactions
- Stress granule assembly: Major scaffold for stress granule formation
- mRNA metabolism: Regulates mRNA stability and translation
- Signal transduction: Links stress signals to translational control
- Ras signaling: Modulates Ras-GAP activity
- Neuroprotection: Controls stress response in neurons
- Core stress granule protein
- Mutations in G3BP1 linked to ALS
- Dysregulated stress granule dynamics contribute to motor neuron degeneration
- Aberrant liquid-liquid phase separation
- Stress granule pathology
- Overlapping mechanisms with ALS
- RNA processing dysregulation
- Altered stress granule dynamics
- Links stress responses to amyloid pathology
| Approach |
Status |
Description |
| Stress granule modulators |
Research |
Modulating stress granule assembly |
| Phase separation inhibitors |
Research |
Preventing abnormal phase separation |
| RNA metabolism enhancers |
Research |
Restoring proper RNA processing |
- 19179225: G3BP1 in stress granule formation. Mol Cell, 2009.
- 25468282: ALS mutations in stress granule proteins. Nat Neurosci, 2014.
- 33268865: Stress granules in neurodegeneration. Nat Rev Neurosci, 2020.
The study of G3Bp1 Protein 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.
- Prentzell MT et al.. "G3BPs tether the TSC complex to lysosomes and suppress mTORC1 signaling." Cell (2021). DOI: 10.1016/j.cell.2020.12.024 PubMed: 33497611
- Yao RQ et al.. "Organelle-specific autophagy in inflammatory diseases: a potential therapeutic target underlying the quality control of multiple organelles." Autophagy (2021). DOI: 10.1080/15548627.2020.1725377 PubMed: 32048886
- Freibaum BD et al.. "Identification of small molecule inhibitors of G3BP-driven stress granule formation." The Journal of cell biology (2024). DOI: 10.1083/jcb.202308083 PubMed: 38284934
- Cui Q et al.. "Diverse CMT2 neuropathies are linked to aberrant G3BP interactions in stress granules." Cell (2023). DOI: 10.1016/j.cell.2022.12.046 PubMed: 36738734
- Glineburg MR et al.. "Stress granule formation helps to mitigate neurodegeneration." Nucleic acids research (2024). DOI: 10.1093/nar/gkae655 PubMed: 39106168
- Ru S et al.. "Human DBR1 deficiency impairs stress granule-dependent PKR antiviral immunity." The Journal of experimental medicine (2025). DOI: 10.1084/jem.20240010 PubMed: 39636299
- Jia X et al.. "De novo variants in genes regulating stress granule assembly associate with neurodevelopmental disorders." Science advances (2022). DOI: 10.1126/sciadv.abo7112 PubMed: 35977029
- Fang MY et al.. "Small-Molecule Modulation of TDP-43 Recruitment to Stress Granules Prevents Persistent TDP-43 Accumulation in ALS/FTD." Neuron (2019). DOI: 10.1016/j.neuron.2019.05.048 PubMed: 31272829