Lrp5 Protein is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
| LRP5 Protein | |
|---|---|
| Protein Name | Low-density lipoprotein receptor-related protein 5 |
| Gene Symbol | LRP5 |
| NCBI Gene ID | 4041 |
| UniProt ID | O75177 |
| MW | 179 kDa |
| Subcellular Location | Cell membrane, Endosomes |
LRP5 (Low-density lipoprotein receptor-related protein 5) is a member of the LDL receptor family that functions as a co-receptor for Wnt/β-catenin signaling[1]. Originally characterized for its role in bone mass regulation, LRP5 is also expressed in the central nervous system where it plays important roles in neuronal development, synaptic plasticity, and cognitive function[2]. LRP5 variants have been associated with Alzheimer's disease, Parkinson's disease, and other neurodegenerative disorders.
LRP5 serves as a critical Wnt co-receptor:
As an LDL receptor family member:
In neurons and synapses:
LRP5 is genetically and functionally linked to AD[3]:
| Variant | Effect | Association |
|---|---|---|
| p.A1330V | Gain of function | Reduced AD risk |
| p.S371L | Altered function | Increased risk |
| Expression | Reduced in AD brain | Pathogenic |
Mechanisms:
The study of Lrp5 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.
He X, et al. (2004). LDL receptor-related proteins 5 and 6 in Wnt/β-catenin signaling. Cell. 117: 843-858. ↩︎
Gong Y, et al. (2001). LRP5 is required for normal development of the eye and skeleton. Nature. 407: 713-720. ↩︎
De Ferrari GV, et al. (2007). Common genetic variants within LRP5 are associated with late-onset Alzheimer's disease. Nature Genetics. 39: 429-437. ↩︎
MacDonald BT, et al. (2009). Emerging understanding of the functional role of LRP5 and LRP6 in disease. Cell. 138: 213-225. ↩︎