Target intelligence / Profile preview

Scavenger Receptor Class B Type I (SR-BI)

Target
SR-BI
Molecular classification
Receptor, Scavenger Receptor
01

Overview

Scavenger Receptor Class B Type I (SR-BI) is a cell surface glycoprotein predominantly expressed in the liver and steroidogenic tissues. It plays a central role in HDL metabolism by mediating the selective uptake of cholesteryl esters from circulating HDL particles into hepatocytes. SR-BI facilitates the transfer of cholesteryl esters from HDL into liver cells without internalizing or degrading the entire particle, a process crucial for reverse cholesterol transport.

Other names
Hepatic HDL Uptake ReceptorSCARB1
02

Mechanism of action

Modulation of hepatic SR-BI activity to enhance cholesterol efflux and bile secretion.

03

Biological functions

Lipid transportCholesterol homeostasisReverse cholesterol transportHDL catabolismSelective cholesterol ester uptakeLipid hormone synthesis
04

Disease associations

Cardiovascular diseaseDyslipidemia
05

Safety considerations

Potential for unintended effects on steroid hormone synthesisOff-target effects due to broad tissue distribution
06

Biomarkers

HDL-cholesterol levelsSCARB1 expression levels

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