The human c-myb 3′-UTR harbors putative binding sites complementary to miR-15a, miR-107 and miR-150. (A) Complementarity between miR-15a and the 2 putative c-myb 3′-UTR sites targeted (634-661 bp and 661-687 bp downstream from the c-myb stop codon). (B) Complementarity between miR-107 and the single putative c-myb 3′-UTR site targeted (660-686 bp downstream from the c-myb stop codon). (C) Complementarity between miR-150 and the 2 putative c-myb 3′-UTR sites targeted (801-835 bp and 876-910 bp downstream from the c-myb stop codon). Sequence conservation (italics) across human, mouse, rat, and dog is also indicated.