FEATURES

FAMILY

DESCRIPTION

Also known as ABCG1_HUMAN, ABCG1, ABC8, WHT1. Catalyzes the efflux of phospholipids such as sphingomyelin, cholesterol and its oxygenated derivatives like 7beta-hydroxycholesterol and this transport is coupled to hydrolysis of ATP (PubMed:17408620, PubMed:24576892). The lipid efflux is ALB-dependent (PubMed:16702602). Is an active component of the macrophage lipid export complex. Could also be involved in intracellular lipid transport processes. The role in cellular lipid homeostasis may not be limited to macrophages. Prevents cell death by transporting cytotoxic 7beta-hydroxycholesterol (PubMed:17408620). Homodimer; disulfide-linked (PubMed:16702602). Homooligomer (PubMed:16702602). May form heterodimers with several heterologous partners of the ABCG subfamily. Forms heterodimers with ABCG4 (PubMed:27228027). Interacts with CAV1; this interaction regulates ABCG1-mediated cholesterol efflux (PubMed:24576892).

EXTERNAL LINKS

ABCG1

ATP-binding cassette sub-family G member 1

ABCG1

Molecular Synopsis