"Here's a wireframe model of the estrogen receptor with all of the atoms shown and the estrogen shown in the center in mostly gray spacefilled atoms, note the two red oxygens"
"In this model, the carbon backbone has been traced with ribbon so as to see more clearly the structural elements"
"Protein atoms have been selected that are within 3 Å of estradiol selected atoms are green, note the two atoms next to oxygen, asp and glu and two atoms in loop, ala and phe"
"Protein atoms within 3.5 Å of estradiol, note how many more atoms there are on the ring 1 face, and how few atoms there are on ring 4 face"
"Lys 32 on chains A&B are spacefilled. These side groups make close contact with the major grove of the DNA.
Also spacefilled is the Thymine residue on the DNA which interacts with Lys 32.