Figure 2.

Functional domains of the AR variants. AR, full length AR wild type; AR-V7, product of alternative splicing, CE; ARv567es, product of altered splicing, exon 5, 6 and 7 skipped during splicing; Q640X, AR with a nonsense mutation leading to a tr-AR of 640 aa; enzymatically cleaved by calpain. AR, androgen receptor; DBD, DNA-binding domain; LBD, ligand-binding domain; PCa, prostate cancer; CE, cryptic exon; tr-AR, truncated AR; AR-V, AR splice variants; NTD, N-terminal domain; HR, hinge region.