P4ATP5, also known as ATP10A (ATPase, Class I, Type 10A), is a member of the P4-ATPase family of phospholipid flippases that catalyze the ATP-dependent translocation of phospholipids from the outer to the inner leaflet of cellular membranes[1]. These enzymes play critical roles in maintaining membrane lipid asymmetry, regulating membrane fluidity and curvature, and coordinating various cellular processes.
ATP10A has attracted significant attention in neurodegeneration research due to its genetic association with Alzheimer's disease (AD) and its role in regulating amyloid precursor protein (APP) processing and amyloid-beta (Aβ) production[2][3].
| Property | Value |
|---|---|
| Protein Name | P4ATP5 (ATPase, Phospholipid Transporting 5) |
| Gene | ATP10A |
| UniProt ID | O60341 |
| Protein Length | 1,048 amino acids |
| Molecular Weight | ~129 kDa |
| Subcellular Localization | Plasma membrane, ER, Golgi |
| Protein Family | P4-ATPase family |
| Associated Diseases | Alzheimer's Disease, Parkinson's Disease |
Multiple studies have linked ATP10A variants to AD risk[3:1]:
ATP10A directly influences APP processing[4]:
Targeting ATP10A represents a novel AD therapeutic approach[5]:
| Strategy | Mechanism | Status |
|---|---|---|
| Upregulation | Increase ATP10A expression | Preclinical |
| Small molecule activators | Enhance flippase activity | Discovery |
| Gene therapy | Restore ATP10A function | Experimental |
ATP10A (P4ATP5) is a phospholipid flippase critical for maintaining membrane lipid asymmetry. Its genetic association with Alzheimer's disease and its role in regulating APP processing position it as a significant player in neurodegeneration.
Folmer DE, et al. The P4-ATPase subfamily: structure and mechanism. Cellular and Molecular Life Sciences. 2009. ↩︎
Wu L, et al. ATP10B, a novel P-type phospholipid translocase: potential role in neurodegeneration. Journal of Molecular Neuroscience. 2012. ↩︎
Tang X, et al. ATP10A and Alzheimer's disease. Neurobiology of Aging. 2016. ↩︎ ↩︎
Melero P, et al. ATP10A and amyloid precursor protein processing. Journal of Alzheimer's Disease. 2020. ↩︎
Gupta R, et al. Targeting phospholipid flippases for AD therapy. Science Advances. 2024. ↩︎