4E Bp1 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.
| 4E-BP1 Protein | |
|---|---|
| Protein Name | Eukaryotic Translation Initiation Factor 4E Binding Protein 1 |
| Gene | EIF4EBP1 |
| UniProt ID | Q13541 |
| PDB ID | 1E9H, 2JGB |
| Molecular Weight | 12.5 kDa |
| Subcellular Localization | Cytoplasm, nucleus |
| Protein Family | eIF4E-binding protein family |
4E-BP1 is a small 12.5 kDa protein that adopts an unstructured conformation in its N-terminus when not bound to eIF4E. The central region contains the eIF4E-binding motif (YXXXXLΦ) that overlaps with the eIF4G binding site. Upon phosphorylation by mTOR, 4E-BP1 undergoes conformational changes that reduce its affinity for eIF4E. Multiple phosphorylation sites (Thr37, Thr46, Ser65, Thr70) regulate 4E-BP1 function.
4E-BP1 is a key translational repressor that regulates cap-dependent translation initiation. When bound to eIF4E, 4E-BP1 prevents the formation of the eIF4F complex and blocks translation initiation. This repression is relieved by mTOR-mediated phosphorylation. In neurons, 4E-BP1 plays critical roles in synaptic plasticity, memory formation, and neuronal homeostasis. Activity-dependent translation at synapses is regulated partly through 4E-BP1 phosphorylation.
The study of 4E Bp1 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.
This section provides background information on the gene/protein and its role in the nervous system.
This overview section needs to be expanded with relevant scientific information from peer-reviewed sources.