Stmn1 — Stathmin 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.
| Symbol | STMN1 |
| Name | Stathmin 1 |
| Chromosome | 1p36.11 |
| NCBI Gene ID | 3925 |
| Ensembl ID | ENSG00000153268 |
| OMIM | 151440 |
| UniProt | P16949 |
| Associated Diseases | Parkinson's Disease, Alzheimer's Disease, Amyotrophic Lateral Sclerosis, Cancer |
| Brain Expression | Brain (high in neurons), Spinal cord, Peripheral nervous system, Leukocytes |
STMN1 (Stathmin 1) is a gene located on chromosome 1p36.11 that encodes Stathmin 1, a ubiquitous phosphoprotein that plays a critical role in microtubule dynamics regulation. Stathmin 1 is also known as Oncoprotein 18 (OP18) and is expressed at high levels in neurons during development and in the adult brain.
Stathmin 1 is a microtubule-destabilizing protein that promotes microtubule depolymerization by sequestering free tubulin dimers and preventing microtubule polymerization. Its activity is tightly regulated by phosphorylation:
In neurons, Stathmin 1 regulates:
Alzheimer's Disease: Stathmin 1 expression and phosphorylation are altered in AD brains. Hyperphosphorylated tau and Stathmin 1 may cooperatively disrupt microtubule stability, contributing to axonal transport deficits.
Parkinson's Disease: Stathmin 1 dysregulation may affect dopaminergic neuron survival. The protein interacts with alpha-synuclein and may influence Lewy body formation.
Amyotrophic Lateral Sclerosis (ALS): Altered Stathmin 1 phosphorylation has been reported in ALS models, potentially affecting cytoskeletal dynamics in motor neurons.
Cancer: Stathmin 1 is overexpressed in many cancers and is associated with poor prognosis. It promotes cell proliferation and migration.
Stathmin 1 is highly expressed in:
The study of Stmn1 — Stathmin 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.