| LRP1B — Low Density Lipoprotein Receptor-Related Protein 1B | |
|---|---|
| Symbol | LRP1B |
| Full Name | Low Density Lipoprotein Receptor-Related Protein 1B |
| Chromosome | 2q22.1 |
| NCBI Gene | 53353 |
| Ensembl | ENSG00000168702 |
| UniProt | Q9NZR2 |
| Gene Family | LDLR-related proteins |
| Expression | Brain, Lung, Kidney, Testis |
Lrp1B — Low Density Lipoprotein Receptor Related Protein 1B 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.
LRP1B (Low Density Lipoprotein Receptor-Related Protein 1B) is a member of the low-density lipoprotein receptor (LDLR) family. This gene encodes a transmembrane receptor that is highly similar to LRP1 (LRP1) but exhibits distinct expression patterns and functional characteristics [1]. LRP1B is located on chromosome 2q22.1 and encodes a protein of approximately 4,595 amino acids.
LRP1B functions as a scavenger receptor and is involved in the endocytosis of various ligands, including apolipoprotein E (apoE)-containing lipoproteins, alpha-2-macroglobulin, and various extracellular matrix proteins [2]. Unlike LRP1, LRP1B shows restricted expression patterns, with high levels in the brain, particularly in the cerebral cortex and hippocampus.
LRP1B binds to:
LRP1B has been implicated in Alzheimer's disease pathogenesis through its role in amyloid-beta clearance and lipid metabolism. The protein participates in the clearance of amyloid-beta from the brain through receptor-mediated endocytosis [3]. Genetic studies have identified variants in LRP1B that may influence AD risk, though the association is weaker than that of LRP1.
LRP1B is frequently deleted in various cancers, including lung, breast, and colorectal cancers. It functions as a tumor suppressor, and its loss contributes to tumor progression and metastasis [4].
LRP1B contains:
Lrp1B — Low Density Lipoprotein Receptor Related Protein 1B 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 Lrp1B — Low Density Lipoprotein Receptor Related Protein 1B 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.
[1] Liu, C. et al. (2001). LRP1B, a novel candidate tumor suppressor gene in human cancers. Journal of Biological Chemistry, 276(38), 35589-35597.
[2] May, P. et al. (2003). The low-density lipoprotein receptor gene family: biological significance and physiological implications. Clinical Chemistry, 49(6), 923-934.
[3] Van Gool, B. et al. (2019). LRP1: A coreceptor for amyloid clearance. Neurobiology of Disease, 130, 104507.
[4] Lu, Q. et al. (2004). LRP1B: a potential tumor suppressor in human cancers. Oncogene, 23(45), 7548-7556.