LRP1: a receptor involved in endocytosis, phagocytosis of apoptotic cells, and neural signaling. Modulates cellular events including APP metabolism, kinase-dependent intracellular signaling, neuronal calcium signaling and neurotransmission. Involved in the plasma clearance of chylomicron remnants and activated alpha 2-macroglobulin, as well as the local metabolism of complexes between plasminogen activators and their endogenous inhibitors. Plays a fundamental role in cellular signaling pathways in the brain. Mediates neural NMDA gating via a complex of LRP1, PSD-95 and NMDAR. A type I membrane protein. After cleavage, the intracellular domain (LRPICD) is detected both in the cytoplasm and in the nucleus. Most abundant in liver, brain and lung.
Protein type: Motility/polarity/chemotaxis; Membrane protein, integral; Receptor, misc.; Cell surface
Chromosomal Location of Human Ortholog: 12q13.3
Cellular Component: cell soma; clathrin-coated vesicle; coated pit; cytoplasm; dendrite; endosome; focal adhesion; integral to plasma membrane; lysosomal membrane; nucleolus; plasma membrane; receptor complex
Molecular Function: apolipoprotein binding; calcium ion binding; lipoprotein transporter activity; low-density lipoprotein receptor activity; protease binding; protein binding; protein complex binding; receptor activity
Biological Process: aging; apoptotic cell clearance; cell proliferation; cerebral cortex development; lipoprotein metabolic process; lipoprotein transport; negative regulation of neuron apoptosis; negative regulation of smooth muscle cell migration; negative regulation of Wnt receptor signaling pathway; positive regulation of lipid transport; positive regulation of protein transport; protein kinase C activation; receptor-mediated endocytosis; regulation of actin cytoskeleton organization and biogenesis; regulation of cholesterol transport; regulation of phospholipase A2 activity; retinoid metabolic process
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