Figure 5.

Competitive binding experiments analysis of hERα LBD with a mixture of OHT and DES (A) or GE and BA (B). NanoESI mass spectra of hERα LBD were acquired after incubation with an equimolar mixture of ligand (i.e., 0.5 μM of each) in 50 mM NH₄OAc (pH 6).