5′ untranslated region AAV ABC ABC (ATP-binding cassette) transporters ABC transporter ABC transporters ABCA subfamily ABCA7 ABCB1 ABCB11 ABCB4 ABCC2 ABCC6 ABCG2 ABCG2 genotype ABCG5 ABCG5/G8 ABCG8 ATP-binding cassette transporter ATP-binding cassette transporter A1 (ABCA1) Alzheimer’s disease Aβ peptides BCRP BRIC BSEP HDL-C MDR3 MRP1 MRP4 NT5E