A team led by researchers of the Institute of Biomedicine of the University of Barcelona and the Research Institute of the Hospital de la Santa Creu i Sant Pau shows for the first time, the three-dimensional structure of the homodimeric androgen receptor ligand-binding domain, a structure that eluded researchers for years. This new structure of the nuclear receptor allows explaining more than forty mutations related to prostate cancer, one of the most common worldwide and especially in Catalonia, as well as known developing disorders such as the androgen insensitivity syndromes.