Scavenger Receptor Class B type I (SR-BI)

Scavenger receptor class B member 1; SRB1; CD36 and LIMPII analogous 1 (CLA-1); CD36 antigen-like 1

Scavenger receptor class B type I (SR-BI) is a physiologically relevant HDL receptor that mediates the selective uptake of HDL-derived cholesteryl esters (CEs) in vitro and in vivo. SR-BI is a member of the class B scavenger receptor family, which in mammals includes the cluster determinant 36 (CD36) family, lysosomal integral membrane protein II (LIMPII, a lysosomal protein), and SR-BII, an SR-BI isoform with an alternative C-terminal cytoplasmic tail. SR-BI is primarily located on the cell surface, where its expression is regulated by trophic hormones (adrenocorticotropic hormone [ACTH] or the gonadotropins luteinizing hormone [LH] or follicle-stimulating hormone [FSH]), as well as regulating steroid hormone production. SR-BI affects the function of multiple vascular cells associated with atherosclerosis. SR-BI is also involved in regulating platelet function and mediating platelet-HDL interactions[1].

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