ArticleJournal of microbiology (Seoul, Korea)2021
The inner membrane protein LapB is required for adaptation to cold stress in an LpxC-independent manner.
Article in Journal of microbiology (Seoul, Korea), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed, 15 citations in OpenAlex.
- Protein-Protein Interactions Between Peptidoglycan, Lipopolysaccharide, and Phospholipid Biosynthesis Enzymes in Escherichia coli.Chembiochem : a European journal of chemical biology · 2026Article
- Identification of Genetic and Environmental Factors Suppressing the Lethality and Antibiotic Susceptibility Mediated by Depletion of LptD, a Lipopolysaccharide Transport Protein.Journal of microbiology and biotechnology · 2025Article
- Inhibition of cardiolipin biosynthesis partially suppresses the sensitivity of an Escherichia coli mutant lacking OmpC to envelope stress.Journal of microbiology (Seoul, Korea) · 2025Article
- PhoPQ-mediated lipopolysaccharide modification governs intrinsic resistance to tetracycline and glycylcycline antibiotics inmSystems · 2024Article
- Lytic transglycosylase repertoire diversity enables intrinsic antibiotic resistance and daughter cell separation inAntimicrobial agents and chemotherapy · 2024Article
- Coordinated and Distinct Roles of Peptidoglycan Carboxypeptidases DacC and DacA in Cell Growth and Shape Maintenance under Stress Conditions.Microbiology spectrum · 2023Article
- Divergent Effects of Peptidoglycan Carboxypeptidase DacA on Intrinsic β-Lactam and Vancomycin Resistance.Microbiology spectrum · 2022Article
- Cryo-EM structure of transmembrane AAA+ protease FtsH in the ADP state.Communications biology · 2022Article
- Conserved Tandem Arginines for PbgA/YejM Allow Salmonella Typhimurium To Regulate LpxC and Control Lipopolysaccharide Biogenesis during Infection.Infection and immunity · 2022Article
- Checkpoints That Regulate Balanced Biosynthesis of Lipopolysaccharide and Its Essentiality inInternational journal of molecular sciences · 2021Review
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3 authors at 1 institution in 1 country.
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Abstract
The inner membrane protein lipopolysaccharide assembly protein B (LapB) is an adaptor protein that activates the proteolysis of LpxC by an essential inner membrane metalloprotease, FtsH, leading to a decrease in the level of lipopolysaccharide in the membrane. In this study, we revealed the mechanism by which the essential inner membrane protein YejM regulates LapB and analyzed the role of the transmembrane domain of LapB in Escherichia coli. The transmembrane domain of YejM genetically and physically interacted with LapB and inhibited its function, which led to the accumulation of LpxC. The transmembrane domain of LapB was indispensable for both its physical interaction with YejM and its regulation of LpxC proteolysis. Notably, we found that the lapB mutant exhibited strong cold sensitivity and this phenotype was not associated with increased accumulation of LpxC. The transmembrane domain of LapB was also required for its role in adaptation to cold stress. Taken together, these results showed that LapB plays an important role in both the regulation of LpxC level, which is controlled by its interaction with the transmembrane domain of YejM, and adaptation to cold stress, which is independent of LpxC.
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