(A) The localization of the predicted androgen receptor binding sites (ARBSs) of Fut1 and the ARBSs of Fut2, Fut4 and Fut9 retrieved from a previously developed chromatin immunoprecipitation sequencing (ChIP-seq) data library; The binding of AR to the ARBSs from the Futs were compared between (B) the caput epididymis and (C) the prostate by ChIP-PCR with AR antibody; (D) The binding of ARBSs to AR in control (normal), castrated and following testosterone propionate (TP) replacement treatment in the caput epididymis. 1, 2, 3 in (B), (C), (D) refer to the binding sites indicated in (A). AR: ChIP-PCR with AR antibody; IgG: ChIP-PCR with normal immunoglobulin G (IgG) as negative control.