Structural Basis of Small-Molecule Aggregate Induced Inhibition of a Protein–Protein Interaction
Structural Basis of Small-Molecule Aggregate Induced Inhibition of a Protein–Protein Interaction
A prevalent observation in high-throughput screening and drug discovery programs is the inhibition of protein function by small-molecule compound aggregation. Here, we present the X-ray structural description of aggregation-based inhibition of a protein-protein interaction involving tumor necrosis factor α (TNFα). An ordered conglomerate of an aggregating small-molecule inhibitor (JNJ525) induces a quaternary structure switch of TNFα that inhibits the protein-protein interaction between TNFα and TNFα receptors. SPD-304 may employ a similar mechanism of inhibition.
- Janssen Pharmaceutica Belgium
Molecular Structure, Tumor Necrosis Factor-alpha, Proton Magnetic Resonance Spectroscopy, Humans, Carbon-13 Magnetic Resonance Spectroscopy, Crystallography, X-Ray, Protein Binding
Molecular Structure, Tumor Necrosis Factor-alpha, Proton Magnetic Resonance Spectroscopy, Humans, Carbon-13 Magnetic Resonance Spectroscopy, Crystallography, X-Ray, Protein Binding
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