Discovery of Covalent Inhibitors Targeting the Transcriptional Enhanced Associate Domain Central Pocket

KARATAŞ BRISTOW H., Akbarzadeh M., Adihou H., Hahne G., Pobbati A. V., Yihui Ng E., ...More

Journal of Medicinal Chemistry, vol.63, no.20, pp.11972-11989, 2020 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 63 Issue: 20
  • Publication Date: 2020
  • Doi Number: 10.1021/acs.jmedchem.0c01275
  • Journal Name: Journal of Medicinal Chemistry
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, BIOSIS, Biotechnology Research Abstracts, CAB Abstracts, Chemical Abstracts Core, Chimica, EMBASE, MEDLINE, Veterinary Science Database
  • Page Numbers: pp.11972-11989
  • Istanbul Medipol University Affiliated: Yes


Transcriptional enhanced associate domain (TEAD) transcription factors together with coactivators and corepressors modulate the expression of genes that regulate fundamental processes, such as organogenesis and cell growth, and elevated TEAD activity is associated with tumorigenesis. Hence, novel modulators of TEAD and methods for their identification are in high demand. We describe the development of a new "thiol conjugation assay"for identification of novel small molecules that bind to the TEAD central pocket. The assay monitors prevention of covalent binding of a fluorescence turn-on probe to a cysteine in the central pocket by small molecules. Screening of a collection of compounds revealed kojic acid analogues as TEAD inhibitors, which covalently target the cysteine in the central pocket, block the interaction with coactivator yes-associated protein with nanomolar apparent IC50 values, and reduce TEAD target gene expression. This methodology promises to enable new medicinal chemistry programs aimed at the modulation of TEAD activity.