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Publication Abstract from PubMed

The development of ligands for biological targets is critically dependent on the identification of sites on proteins that bind molecules with high affinity. A set of compounds, called FragLites, can identify such sites, along with the interactions required to gain affinity, by X-ray crystallography. We demonstrate the utility of FragLites in mapping the binding sites of bromodomain proteins BRD4 and ATAD2 and demonstrate that FragLite mapping is comparable to a full fragment screen in identifying ligand binding sites and key interactions. We extend the FragLite set with analogous compounds derived from amino acids (termed PepLites) that mimic the interactions of peptides. The output of the FragLite maps is shown to enable the development of ligands with leadlike potency. This work establishes the use of FragLite and PepLite screening at an early stage in ligand discovery allowing the rapid assessment of tractability of protein targets and informing downstream hit-finding.

Mapping Ligand Interactions of Bromodomains BRD4 and ATAD2 with FragLites and PepLites horizontal line Halogenated Probes of Druglike and Peptide-like Molecular Interactions.,Davison G, Martin MP, Turberville S, Dormen S, Heath R, Heptinstall AB, Lawson M, Miller DC, Ng YM, Sanderson JN, Hope I, Wood DJ, Cano C, Endicott JA, Hardcastle IR, Noble MEM, Waring MJ J Med Chem. 2022 Nov 11. doi: 10.1021/acs.jmedchem.2c01357. PMID:36367089^[2]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.