Prolow-density lipoprotein receptor-related protein 1 (UniProt Q07954; also known as A2MR, Alpha-2-macroglobulin receptor, APER, Apolipoprotein E receptor, CD19. LRP-1) is encoded by the LRP1 (also known as A2MR, APR) gene (Gene ID 4035) in human. LRP-1 is single pass type I membrane protein that is expressed in most tissues, but is abundant in liver, brain, and lung. LRP1 is synthesized with a signal peptide sequence (a.a. 1-19) and is processed in trans-Golgi network by furin to generate a 515 kDa alpha subunit and an 85 kDa beta subunit. The alpha and beta subunits are non-covalently linked during LRP1 transport to the cell membrane. LRP1 recognizes and mediates the endocytosis of more than 40 different ligands, including apolipoprotein E (ApoE), APP and amyloid beta. It is the primary receptor mediating transport of amyloid beta peptides across the blood-brain barrier into circulation, thereby clearing them from the brain. LRP1 is required for early embryonic development and is involved in cellular lipid homeostasis and plasma clearance of chylomicron remnants and activated LRPAP1 (alpha 2-macroglobulin). Excessive copper accumulation in the brain has been linked with reduced LRP1 mediated clearance of amyloid beta peptides across the blood brain barrier, which may contribute to complications of Alzheimer's disease.
Synonyms: Prolow-density lipoprotein receptor-related protein 1, A2MR, Alpha-2-macroglobulin receptor, APER, Apolipoprotein E receptor, CD19, Low-density lipoprotein receptor-related protein 1 85 kDa subunit, LRP-85
Application: Western Blotting Analysis: 0.5 µg/mL from a representative lot detected LRP1 85 kDa subunit in 10 µg of mouse hippocampus tissue lysate.ELISA Analysis: A representative lot was employed as the capture antibody for the detection of LRP1 in different human brain regions by sandwich ELISA. a strong positive correlation between LRP1 and PSD95 regional distribution was observed (Shinohara, M., et al. (2013). Acta Neuropathol. 125(4):535-547).Western Blotting Analysis: A representative lot detected siRNA-mediated LRP1 knockdown in human brain vascular pericytes (Casey, C.S., et al. 2015. J. Biol. Chem. 290(22):14208-14217).Note: The use of 5% skim milk as the blocking agent and 1-2 hr instead of overnight primary incubation time is recommended for Western blotting application to minimize non-specific background.
Other Notes: Concentration: Please refer to lot specific datasheet.