Identification of scavenger receptor SR-BI as a high density lipoprotein receptor

Susan Acton, Attilio Rigotti, Katherine T. Landschulz, Shangzhe Xu, Helen H. Hobbs, Monty Kriegert

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Abstract

High density lipoprotein (HDL) and low density lipoprotein (LDL) are cholesterol transport particles whose plasma concentrations are directly (LDL) and inversely (HDL) correlated with risk for atherosclerosis. LDL catabolism involves cellular uptake and degradation of the entire particle by a well-characterized receptor. HDL, in contrast, selectively delivers its cholesterol, but not protein, to cells by unknown receptors. Here it is shown that the class B scavenger receptor SR-BI is an HDL receptor. SR-BI binds HDL with high affinity, is expressed primarily in liver and nonplacental steroidogenic tissues, and mediates selective cholesterol uptake by a mechanism distinct from the classic LDL receptor pathway.

Original languageEnglish (US)
Pages (from-to)518-520
Number of pages3
JournalScience
Volume271
Issue number5248
DOIs
StatePublished - Jan 26 1996

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Cite this

Acton, S., Rigotti, A., Landschulz, K. T., Xu, S., Hobbs, H. H., & Kriegert, M. (1996). Identification of scavenger receptor SR-BI as a high density lipoprotein receptor. Science, 271(5248), 518-520. https://doi.org/10.1126/science.271.5248.518