Structure-based inhibitor optimization for the Nsp3 Macrodomain of SARS-CoV-2.Gahbauer, S., Correy, G.J., Schuller, M., Ferla, M.P., Doruk, Y.U., Rachman, M., Wu, T., Diolaiti, M., Wang, S., Neitz, R.J., Fearon, D., Radchenko, D., Moroz, Y., Irwin, J.J., Renslo, A.R., Taylor, J.C., Gestwicki, J.E., von Delft, F., Ashworth, A., Ahel, I., Shoichet, B.K., Fraser, J.S.
- PubMed: 35794891
- DOI: https://doi.org/10.1101/2022.06.27.497816
- Primary Citation of Related Structures:
5SOI, 5SOJ, 5SOK, 5SOL, 5SOM, 5SON, 5SOO, 5SOP, 5SOQ, 5SOR, 5SOS, 5SOT, 5SOU, 5SOV, 5SOW, 5SOX, 5SOY, 5SOZ, 5SP0, 5SP1, 5SP2, 5SP3, 5SP4, 5SP6, 5SP7, 5SP8, 5SP9, 5SPA, 5SPB, 5SPC, 5SPD, 5SPE, 5SPF, 5SPG, 5SPH, 5SPI, 5SPJ, 5SPK, 5SPL, 5SPM, 5SPN, 5SPO, 5SPP, 5SPQ, 5SPR, 5SPS, 5SPT, 5SPU, 5SPV, 5SPW
- PubMed Abstract:
The nonstructural protein 3 (NSP3) of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) contains a conserved macrodomain enzyme (Mac1) that is critical for pathogenesis and lethality. While small molecule inhibitors of Mac1 have great therapeutic potential, few have been described ...
The nonstructural protein 3 (NSP3) of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) contains a conserved macrodomain enzyme (Mac1) that is critical for pathogenesis and lethality. While small molecule inhibitors of Mac1 have great therapeutic potential, few have been described. Here, we report the structure-based development of several chemical scaffolds exhibiting low- to sub-micromolar affinity for Mac1 through iterations of computer-aided design, structural characterization by ultra-high resolution X-ray protein crystallography, and binding evaluation with in-solution assays. Potent scaffolds were designed with in silico linkage of previously obtained fragment hits and ultra-large library docking screens of more than 450 million molecules. In total, 160 hits comprising 119 different scaffolds were discovered and 152 Mac1-ligand complex crystal structures were determined, typically to 1 Ã… resolution or better. The structure-activity-relationships emerging from this study may template future drug development against Mac1.
Department of Biophysics and Biophysical Chemistry, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA. firstname.lastname@example.org.