ArticleThe protein journal2022
A Phagosomally Expressed Gene, rv0428c, of Mycobacterium tuberculosis Demonstrates Acetyl Transferase Activity and Plays a Protective Role Under Stress Conditions.
Article in The protein journal, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
4 citing papers in PubMed, 4 citations in OpenAlex.
- Article
- Hijacked epigenomes: how bacterial effectors rewrite host gene expression.Archives of microbiology · 2026Review
- Endoplasmic Reticulum Stress in Tuberculosis: Molecular Bases and Pathophysiological Implications in the Immunopathogenesis of the Disease.International journal of molecular sciences · 2025Review
- The role ofFrontiers in cellular and infection microbiology · 2023Review
Corrections and comments
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Authors and funding
6 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Mycobacterium tuberculosis genome is composed of several hypothetical gene products that need to be characterized for understanding the physiology of bacteria. Rv0428c was one of the 11 proteins exclusively identified within the phagosomal compartment of macrophages infected with mycobacteria and marked as hypothetical. The expression of rv0428c gene was upregulated under acidic and nutritive stress conditions in M. tuberculosis H37Ra, which was supported by potential sigma factor binding sites in the region upstream to the rv0428c gene. The bioinformatics analysis predicted it to be a GCN5- acetyl transferase, belonging to the Histone acetyl transferase (HAT) family. The docking analysis predicted formation of hydrogen bonds and hydrophobic interactions between donor acetyl-co-A and histone H3 tail region. rv0428c gene was cloned and expressed in E. coli. The protein was purified to homogeneity and was fairly stable over a wide range of pH 5.0-9.0 and temperature up to 40 °C. The HAT activity of purified Rv0428c was confirmed by in vitro acetylation assay using recombinant H3 histone expressed in bacteria as substrate, which increased in time dependent manner. The results suggested that it is the second confirmed acetyl transferase in M. tuberculosis H37Rv. Furthermore, rv0428c was over expressed in surrogate host M. smegmatis, which led to enhanced growth rate and altered colony morphology. The expression of rv0428c in M. smegmatis promoted the survival of bacteria under acidic and nutritive stress conditions. In conclusion, Rv0428c, a phagosomal acetyl transferase of M. tuberculosis, might be involved in survival under stress conditions.
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