Abstract
The isolation and characterization of rabbit and human cDNAs revealed a new low density lipoprotein receptor (LDLR)-related protein (LRP) designated as LRP5. Human LRP5 cDNA encodes a 1616-amino acid type I membrane-like protein with three ligand binding repeats in its extracellular region. LDLR-deficient cells transduced by recombinant adenovirus containing human LRP5 exhibited increased binding of apolipoprotein E (apoE)-enriched β-migrating very low density lipoprotein. Northern blotting and in situ hybridization revealed a high level of LRP5 expression in hepatocytes and the adrenal gland cortex. In LDLR-deficient Watanabe heritable hyperlipidemic rabbits, LRP5 mRNA was increased in the liver and accumulated in cholesterol-laden foam cells of atherosclerotic lesions.
Original language | English |
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Pages (from-to) | 1072-1076 |
Number of pages | 5 |
Journal | Journal of Biochemistry |
Volume | 124 |
Issue number | 6 |
DOIs | |
Publication status | Published - 1998 |
Keywords
- apoE
- LDL receptor family
- LDL receptor-related protein
- Lipoprotein