RB1 (Retinoblastoma Protein, pRb) is a master regulator of cell cycle progression with critical functions in the nervous system. This protein controls the G1/S checkpoint and plays essential roles in neuronal development, synaptic plasticity, and neuronal survival.
The retinoblastoma protein (pRb) is a 928 amino acid nuclear phosphoprotein encoded by the RB1 tumor suppressor gene[1]. pRb functions as a transcriptional co-repressor that binds to E2F transcription factors, preventing progression through the G1 phase of the cell cycle[2]. In post-mitotic neurons, pRb continues to play important roles in synaptic plasticity, metabolism, and survival[3].
| Attribute | Value |
|---|---|
| Protein Name | Retinoblastoma Protein (pRb) |
| Gene Symbol | RB1 |
| UniProt ID | P06400 |
| Molecular Weight | 110 kDa |
| Protein Length | 928 amino acids |
| PDB Structures | 1ADL, 1DSY, 1GH6, 2R7G, 4YJJ |
| Subcellular Localization | Nucleus |
The study of Rb1 Protein (Retinoblastoma 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.
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