| Protein Name |
Wolframin |
| Gene |
WFS1 |
| UniProt |
O76024 |
| Molecular Weight |
100.3 kDa |
| Length |
890 amino acids |
| Subcellular Localization |
Endoplasmic Reticulum |
| Protein Family |
WFS1 family, ER calcium channel proteins |
Wfs1 Protein Wolframmin is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
WFS1 (Wolframin) is an endoplasmic reticulum (ER) membrane protein encoded by the WFS1 gene. It functions as an ER calcium channel or regulator of calcium homeostasis and plays critical roles in cellular survival, particularly in neurons and pancreatic beta cells.1
Dysfunction of WFS1 leads to Wolfram syndrome (DIDMOAD), a severe neurodegenerative disorder.
WFS1 is a multipass transmembrane protein:
- 9-10 transmembrane domains
- Large luminal loop domain
- N-terminal and C-terminal regions facing the cytoplasm
- Contains multiple glycosylation sites
¶ Domains
- Transmembrane domains: Form the calcium channel pore
- Luminal domain: Interacts with ER calcium sensing proteins
- Cytoplasmic domains: Interact with signaling proteins
WFS1 regulates ER calcium release and maintains calcium balance. It functions as:
- Calcium channel in the ER membrane
- Regulator of store-operated calcium entry
- Modulator of cytosolic calcium signaling
WFS1 is involved in the unfolded protein response:
- Helps manage ER stress
- Interacts with ER stress sensors
- Maintains ER function under stress conditions
WFS1 activates pro-survival signaling:
- Activates Akt pathway
- Modulates autophagy
- Inhibits apoptosis
Loss of WFS1 function causes Wolfram syndrome:
- Progressive neurodegeneration
- Diabetes mellitus (beta cell loss)
- Optic atrophy (retinal ganglion cell death)
- Diabetes insipidus
- Sensorineural deafness
WFS1 deficiency leads to:
- Increased ER stress
- Impaired calcium homeostasis
- Activation of apoptotic pathways
- Progressive neuronal loss
WFS1 is essential for pancreatic beta cell survival:
- Beta cell dysfunction and death
- Impaired insulin secretion
- Diabetes mellitus
- Viral vector delivery of functional WFS1
- CRISPR-based gene correction
- ER stress modulators
- Calcium channel modulators
- Autophagy enhancers
- Beta cell transplantation
- Stem cell-derived neurons
- Wolfram (DIDMOAD) syndrome. Journal of Medical Genetics, 1995.
- WFS1 mutations cause Wolfram syndrome. Nature Genetics, 1998.
- Wolfram syndrome: a model of ER stress in neurodegeneration. Trends in Neurosciences, 2009.
The study of Wfs1 Protein Wolframmin 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.
- Barrett TG et al., Wolfram (DIDMOAD) syndrome. Journal of Medical Genetics, 1995.
- Inoue H et al., A candidate gene for the Wolfram syndrome. Nature Genetics, 1998.
- Wolfram syndrome: a model of ER stress in neurodegeneration. Trends in Neurosciences, 2009.
Page auto-generated from NeuroWiki protein database.