ABCB1 cDNA / gene is a gene with protein product which located on 7q21.12. The ABCB1 gene is conserved in chimpanzee, Rhesus monkey, dog, cow, mouse, rat, fruit fly, C.elegans, S.pombe, M.oryzae, N.crassa, A.thaliana, rice, and frog. 147 organisms have orthologs with human gene ABCB1.