Disrupting the Constitutive, Homodimeric Protein–Protein Interface in CK2β Using a Biophysical Fragment-Based Approach

[Image: see text] Identifying small molecules that induce the disruption of constitutive protein–protein interfaces is a challenging objective. Here, a targeted biophysical screening cascade was employed to specifically identify small molecules that could disrupt the constitutive, homodimeric protein–protein interface within CK2β. This approach could potentially be applied to achieve subunit disassembly of other homo-oligomeric proteins as a means of modulating protein function.