Abca1 Protein (Atp Binding Cassette Transporter A1) plays an important role in the study of neurodegenerative diseases. This page provides comprehensive information about this topic, including its mechanisms, significance in disease processes, and therapeutic implications.
Abca1 Protein (Atp Binding Cassette Transporter A1) is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
{{Infobox .infobox .infobox-protein
| protein_name = ABCA1 Protein
| gene = ABCA1
| uniprot_id = O95477
| molecular_weight = ~254 kDa
| localization = Plasma membrane, Golgi, endoplasmic reticulum
| family = ABC transporter family
}}
ABCA1 is an ATP-binding cassette transporter critical for cholesterol efflux and lipid homeostasis.
- Two transmembrane domains (6 helices each)
- Two nucleotide-binding domains (NBDs)
- Extracellular loops for lipid binding
- Cholesterol and phospholipid efflux to apolipoproteins
- Formation of HDL particles
- Reverse cholesterol transport
- Cellular lipid homeostasis
- Phagocytosis in microglia
- Alzheimer's: ABCA1 variants modify AD risk; regulates ApoE lipidation
- Alzheimer's: Reduced ABCA1 impairs amyloid clearance
- Parkinson's: Lipid metabolism alterations
- Atherosclerosis: Protective role in cardiovascular disease
- LXR agonists (e.g., TO901317) increase ABCA1 expression
- Gene therapy approaches
- Small molecule activators in development
Abca1 Protein (Atp Binding Cassette Transporter A1) plays an important role in the study of neurodegenerative diseases. This page provides comprehensive information about this topic, including its mechanisms, significance in disease processes, and therapeutic implications.
The study of Abca1 Protein (Atp Binding Cassette Transporter A1) 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.
- Takahashi K, Kimura Y, Kioka N, et al. Purification and ATPase activity of human ABCA1. Journal of Biological Chemistry. 2006;281(16):10760-10768. PMID:16484230
- Volpicella M, Leoni C, Fanizza I, et al. ATP-binding cassette transporters in neurodegeneration. Biological Chemistry. 2020;401(5):567-575. PMID:31873872
- Vasiliou V, Vasiliou K, Nebert DW. Human ATP-binding cassette (ABC) transporter family. Human Genomics. 2009;3(3):281-290. PMID:19515417
- Koldamova R, Lefterov I. Role of ABCA1 and ABCG1 transporters in cholesterol efflux and Alzheimer's disease. Current Alzheimer Research. 2007;4(2):179-184. PMID:17430242
- Wahrle SE, Jiang H, Parsadanian M, et al. ABCA1 is required for normal central nervous system ApoE levels and for lipidation of astrocyte-secreted ApoE. Journal of Biological Chemistry. 2005;280(36):32000-32008. PMID:15983038
- Zelcer N, Tontonoz P. Liver X receptors as integrators of metabolic and inflammatory signaling. Journal of Clinical Investigation. 2006;116(3):607-614. PMID:16511593
- Fitz NF, Cronican A, Pham T, et al. Liver X receptor agonist treatment ameliorates amyloid pathology and memory deficits. Proceedings of the National Academy of Sciences. 2010;107(46):19861-19866. PMID:21045124
- Hu Y, Meuret C, Go C, et al. ATP-binding cassette transporter A1 deficiency promotes amyloid pathology in Alzheimer's disease. Neurobiology of Aging. 2020;95:124-135. PMID:32717471