21802-19-7Relevant academic research and scientific papers
JAK2 JH2 Fluorescence Polarization Assay and Crystal Structures for Complexes with Three Small Molecules
Newton, Ana S.,Deiana, Luca,Puleo, David E.,Cisneros, José A.,Cutrona, Kara J.,Schlessinger, Joseph,Jorgensen, William L.
, p. 614 - 617 (2017)
A competitive fluorescence polarization (FP) assay is reported for determining binding affinities of probe molecules with the pseudokinase JAK2 JH2 allosteric site. The syntheses of the fluorescent 5 and 6 used in the assay are reported as well as Kd results for 10 compounds, including JNJ7706621, NVP-BSK805, and filgotinib (GLPG0634). X-ray crystal structures of JAK2 JH2 in complex with NVP-BSK805, filgotinib, and diaminopyrimidine 8 elucidate the binding poses.
Discovery of Small-Molecule Cyclic GMP-AMP Synthase Inhibitors
Anderson, Rachel,Chen, Zhijian J.,Padilla-Salinas, Rosaura,Sun, Lijun,Yang, Xikang,Yin, Hang,Zhang, Shuting
, (2020/02/04)
Cyclic guanosine monophosphate-adenosine monophosphate (GMP-AMP) (cGAS), a cytosolic DNA sensor, plays an important role in the type I interferon response. DNA from either invading microbes or self-origin triggers the enzymatic activity of cGAS. Aberrant activation of cGAS is associated with various autoimmune disorders. Only one selective probe exists for inhibiting cGAS in cells, while others are limited by their poor cellular activity or specificity, which underscores the urgency for discovering new cGAS inhibitors. Here, we describe the development of new small-molecule human cGAS (hcGAS) inhibitors (80 compounds synthesized) with high binding affinity in vitro and cellular activity. Our studies show CU-32 and CU-76 selectively inhibit the DNA pathway in human cells but have no effect on the RIG-I-MAVS or Toll-like receptor pathways. CU-32 and CU-76 represent a new class of hcGAS inhibitors with activity in cells and provide a new chemical scaffold for designing probes to study cGAS function and development of autoimmune therapeutics.
NOVEL CYCLIC GMP-AMP SYNTHASE (CGAS) INHIBITORS AND THEIR METHOD OF USE
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Page/Page column 60; 89; 91, (2020/01/08)
Methods of treating diseases related to cGAS activation. Small molecule inhibitors of cGAS and pharmaceutical compositions and uses thereof in treating autoimmune diseases or inflammation.
