DNA-binding domain of human androgen receptor. The clue amino acids residues are shown. Zinc atoms are designated as green points.
<a href="//commons.wikimedia.org/wiki/User:Kaidor" title="User:Kaidor">Kaidor</a>
<span class="int-own-work" lang="en">Own work</span> based on <a rel="nofollow" class="external autonumber" href="https://www.ncbi.nlm.nih.gov/books/NBK279028/figure/andro-r-metab-dsrdr_f_andro-r-metab-dsrdr_ENDOTXTFIG11/?report=objectonly">[1]</a>