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ATP-binding cassette sub-family A member 7 (ABCA7), is a member of the ATP-binding cassette sub-family A. ABCA7 is thought to have a role in phagocytosis apoptotic cells macrophages.
ABCA-7 is highly homologous to ABCA1, and also mediates cellular cholesterol and phospholipid release by apolipoproteins. The ABCA7 gene is regulated by sterol in the opposite direction to ABCA1 through SRE/SREBP2. The expression of ABCA7 by this regulation is associated with phagocytic activity. As well, it binds APOA1 and may function in apolipoprotein-mediated phospholipid efflux from cells. It also may mediate cholesterol efflux.
ABCA7 antibodies are useful for studies of cholesterol formation and lipid processing mechanisms.
