A Universal Stress Protein That Controls Bacterial Stress Survival in Micrococcus luteus

2019/09/18 by Spencer Havis, Abiodun Bodunrin, Jonathan Rangel +10 · 13 citations
Biochemistry, Genetics and Molecular Biology · Environmental Science · #Bacteria #Bacterial biofilms and quorum sensing #Biochemistry #Biology #Enzyme #Gene #Genetics #Genomics and Phylogenetic Studies #Glyoxylate cycle #Hypothetical protein #Isocitrate lyase #Microbial Community Ecology and Physiology #Microbiology #Micrococcus luteus #Staphylococcus aureus

paper · pdf · doi:10.1128/jb.00497-19

openalex publication_date 2019/09/18 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Bacteria tolerate severe external stresses, including antibiotics, through a nonreplicative persistent (NRP) survival state, yet the proteins regulating this survival state are largely unknown. We show a specific universal stress protein (UspA616) controls the NRP state in Micrococcus luteus . Usps are widely conserved across bacteria, but their biological function(s) has remained elusive. UspA616 inactivation renders M. luteus susceptible to stress: bacteria die instead of adapting through the NRP state. UspA616 regulates malate synthase and isocitrate lyase, glyoxylate pathway enzymes important for chronic Mycobacterium tuberculosis infection. These data show that UspA616 regulates NRP stress survival in M. luteus and suggest a function for homologous proteins in other bacteria. Importantly, inhibitors of UspA616 and homologs may render NRP bacteria more susceptible to stresses, including current antibiotics.

Citations

• A Proteomic Signature of Dormancy in the Actinobacterium Micrococcus luteus

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