Sclerotiamide: The First Non-Peptide-Based Natural Product Activator of Bacterial Caseinolytic Protease P

Nathan P. Lavey, Jesse A. Coker, Eliza A. Ruben, Adam S. Duerfeldt

Research output: Contribution to journalArticlepeer-review

20 Scopus citations


Caseinolytic protease P (ClpP) maintains essential roles in bacterial homeostasis. As such, both the inhibition and activation of this enzyme result in bactericidal activity, making ClpP a promising target for antibacterial drug development. Herein, we report the results of a fluorescence-based screen of ∼450 structurally diverse fungal and bacterial secondary metabolites. Sclerotiamide (1), a paraherquamide-related indolinone, was identified as the first non-peptide-based natural product activator of ClpP. Structure-activity relationships arising from the initial screen, preliminary biochemical evaluation of 1, and rationale for the exploitation of this chemotype to develop novel ClpP activators are presented.

Original languageEnglish (US)
Pages (from-to)1193-1197
Number of pages5
JournalJournal of Natural Products
Issue number4
StatePublished - Apr 22 2016
Externally publishedYes

Bibliographical note

Funding Information:
This work was supported by the University of Oklahoma Junior Faculty Fellowship (A.S.D.), Oklahoma Center for the Advancement of Science and Technology (OCAST, HR15-161), and University of Oklahoma start-up funding. The initial screen was partially subsidized by an Undergraduate Research Opportunity Program (UROP) Award (J.A.C.). Research reported in this publication was supported by an Institutional Development Award (IDeA) from the National Institute of General Medical Sciences of the National Institutes of Health under grant number P20GM103640.

Publisher Copyright:
© 2016 The American Chemical Society and American Society of Pharmacognosy.


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