ArticleChembiochem : a European journal of chemical biology2022
Tailored Phenyl Esters Inhibit ClpXP and Attenuate Staphylococcus aureus α-Hemolysin Secretion.
Article in Chembiochem : a European journal of chemical biology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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8 citing papers in PubMed, 17 citations in OpenAlex.
- Unraveling proteomic chaos by independent component analysis-ClpX proficiency promotes the iron and oxygen limitation responses ofmSystems · 2025Article
- DisarmingPathogens (Basel, Switzerland) · 2025Review
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- Chemical tools to expand the ligandable proteome: Diversity-oriented synthesis-based photoreactive stereoprobes.Cell chemical biology · 2024Article
- Review
- Cervimycin-Resistant Staphylococcus aureus Strains Display Vancomycin-Intermediate Resistant Phenotypes.Microbiology spectrum · 2022Article
- Tailored Phenyl Esters Inhibit ClpXP and Attenuate Staphylococcus aureus α-Hemolysin Secretion.Chembiochem : a European journal of chemical biology · 2022Article
- Review
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
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Abstract
Novel strategies against multidrug-resistant bacteria are urgently needed in order to overcome the current silent pandemic. Manipulation of toxin production in pathogenic species serves as a promising approach to attenuate virulence and prevent infections. In many bacteria such as Staphylococcus aureus or Listeria monocyotgenes, serine protease ClpXP is a key contributor to virulence and thus represents a prime target for antimicrobial drug discovery. The limited stability of previous electrophilic warheads has prevented a sustained effect of virulence attenuation in bacterial culture. Here, we systematically tailor the stability and inhibitory potency of phenyl ester ClpXP inhibitors by steric shielding of the ester bond and fine-tuning the phenol leaving group. Out of 17 derivatives, two (MAS-19 and MAS-30) inhibited S. aureus ClpP peptidase and ClpXP protease activities by >60 % at 1 μM. Furthermore, the novel inhibitors did not exhibit pronounced cytotoxicity against human and bacterial cells. Unlike the first generation phenylester AV170, these molecules attenuated S. aureus virulence markedly and displayed increased stability in aqueous buffer compared to the previous benchmark AV170.
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