Arrb1 — Arrestin Beta 1 is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
| Arrestin Beta 1 | |
|---|---|
| Gene Symbol | ARRB1 |
| Full Name | Arrestin beta 1 |
| Chromosome | 11q13.1 |
| NCBI Gene ID | 409 |
| OMIM | 107940 |
| Ensembl ID | ENSG00000141428 |
| UniProt ID | P49407 |
| Associated Diseases | Alzheimer's Disease, Parkinson's Disease |
ARRB1 (Arrestin Beta 1) is a member of the arrestin family of proteins that plays a crucial role in regulating G protein-coupled receptor (GPCR) signaling. Arrestins bind to phosphorylated GPCRs, blocking further G protein coupling and promoting receptor internalization through clathrin-coated pits. Beyond receptor desensitization, ARRB1 serves as signaling scaffolds, activating pathways like MAPK and Akt. In the nervous system, ARRB1 regulates neurotransmission, synaptic plasticity, and neuronal survival. Dysregulated arrestin signaling is implicated in neurodegenerative diseases and psychiatric disorders.
ARRB1 encodes arrestin beta 1, a key regulator of G protein-coupled receptor (GPCR) signaling. It binds to phosphorylated GPCRs to prevent further G protein activation and targets receptors for internalization. Arrestins also serve as signaling scaffolds, activating MAPK pathways.
Widely expressed in brain, particularly in cortex and hippocampus. Critical for regulation of neurotransmitter receptors.
| Disease | Variants | Inheritance | Mechanism |
|---|---|---|---|
| Alzheimer's Disease | Risk variants | Complex | Dysregulated receptor signaling |
| Parkinson's Disease | Risk variants | Complex | Dopamine receptor dysregulation |
The study of Arrb1 — Arrestin Beta 1 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.