A superfamily of integral ATP-binding cassette membrane proteins whose expression pattern is consistent with a role in lipid (cholesterol) efflux. It is implicated in TANGIER DISEASE, characterized by accumulation of cholesteryl ester in various tissues.

Synonyms: 0, ATP Binding Cassette Sub Family A Member 1, Cholesterol Efflux Regulatory Protein, ATP-Binding Cassette Sub-Family A Member 1, Cholesterol-Efflux Regulatory Protein, ATP Binding Cassette Transporter, Subfamily A, Member 1, ABCA1 Protein, ATP Binding Cassette Transporter 1, CERP Protein