Pde1B — Phosphodiesterase 1B is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
| Phosphodiesterase 1B | |
|---|---|
| Gene Symbol | PDE1B |
| Full Name | Phosphodiesterase 1B (Calmodulin-stimulated PDE) |
| Chromosome | 21q22.11 |
| NCBI Gene ID | 5153 |
| OMIM | |
| Ensembl ID | ENSG00000184518 |
| UniProt ID | Q01065 |
| Associated Diseases | Parkinson's Disease, ADHD |
PDE1B (Phosphodiesterase 1B) is a calcium/calmodulin-dependent phosphodiesterase that hydrolyzes cyclic AMP (cAMP) and cyclic GMP (cGMP), terminating these second messenger signaling cascades. PDE1B is highly expressed in brain, particularly in striatum and hippocampus, where it regulates neuronal cAMP/cGMP levels and modulates synaptic plasticity, learning, and memory. PDE1B inhibitors are being explored as potential treatments for cognitive disorders, neurodegenerative diseases, and cardiovascular conditions.
PDE1B encodes phosphodiesterase 1B, a calcium/calmodulin-dependent phosphodiesterase that hydrolyzes cAMP and cGMP. It is highly expressed in brain, particularly in striatum, and plays a critical role in regulating dopamine and cAMP signaling.
High expression in brain, particularly in striatum and olfactory bulb. Important for dopaminergic signaling.
| Disease | Variants | Inheritance | Mechanism |
|---|---|---|---|
| Parkinson's Disease | Risk variants | Complex | Impaired cAMP hydrolysis |
| ADHD | Variants | Complex | Dopamine signaling dysregulation |
The study of Pde1B — Phosphodiesterase 1B 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.