ArticleStress biology2022
Small protein Cgl2215 enhances phenolic tolerance by promoting MytA activity in Corynebacterium glutamicum.
Article in Stress biology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Functional Identification of AcsR, a MarR Family Transcriptional Regulator Involved in the Regulation of Aromatic Compound-Degrading Genes inMicroorganisms · 2026Article
- Functional versatility of Zur in metal homeostasis, motility, biofilm formation, and stress resistance inMicrobiology spectrum · 2024Article
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Authors and funding
9 authors.
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Abstract
Corynebacterium glutamicum is a promising chassis microorganism for the bioconversion of lignocellulosic biomass owing to its good tolerance and degradation of the inhibitors generated in lignocellulosic pretreatments. Among the identified proteins encoded by genes within the C. glutamicum genome, nearly 400 are still functionally unknown. Based on previous transcriptome analysis, we found that the hypothetical protein gene cgl2215 was highly upregulated in response to phenol, ferulic acid, and vanillin stress. The cgl2215 deletion mutant was shown to be more sensitive than the parental strain to phenolic compounds as well as other environmental factors such as heat, ethanol, and oxidative stresses. Cgl2215 interacts with C. glutamicum mycoloyltransferase A (MytA) and enhances its in vitro esterase activity. Sensitivity assays of the ΔmytA and Δcgl2215ΔmytA mutants in response to phenolic stress established that the role of Cgl2215 in phenolic tolerance was mediated by MytA. Furthermore, transmission electron microscopy (TEM) results showed that cgl2215 and mytA deletion both led to defects in the cell envelope structure of C. glutamicum, especially in the outer layer (OL) and electron-transparent layer (ETL). Collectively, these results indicate that Cgl2215 can enhance MytA activity and affect the cell envelope structure by directly interacting with MytA, thus playing an important role in resisting phenolic and other environmental stresses.
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