Table 2.
Glossary of effectors: Histone modifications by bacterial virulence factors
BacteriaEffectorHost targetTarget pathwaysOutcomeMode of actionReference
L. monocytogenes LLO Unknown Unknown Dephosphorylation of H3S10; deacetylation of H4 Cholesterol-dependent cytolysin pore-forming toxin Hamon et al., 2007  
L. monocytogenes InlB SIRT2 PI3K/AKT Deacetylation of H3K18 Binds to the cell surface receptor c-Met Eskandarian et al., 2013  
S. flexneri OspF ERK and p38 (MAPKs) MAPK Dephosphorylation of H3S10 Phosphothreonine lyase Arbibe et al., 2007; Li et al., 2007; Zhu et al., 2007  
S. typhimurium SpvC ERK (MAPKs) MAPK Dephosphorylation of MAPKs Phosphothreonine lyase Li et al., 2007; Zhu et al., 2007; Haneda et al., 2012  
C. trachomatis NUE Histones H2B, H3, and H4 Direct PTMa Transcriptional repression Methyltransferase Pennini et al., 2010  
L. pneumophila Paris RomA Histone H3 Direct PTM Methylation of H3K14; transcriptional repression Methyltransferase Rolando et al., 2013  
L. pneumophila Philadelphia LP02 LegAS4 Histone H3 Direct PTM Methylation of H3K4; transcriptional activation of ribosomal RNA genes Methyltransferase Li et al., 2013  
B. anthracisb BaSET Histone H1 Direct PTM; NF-κB Trimethylation of histone H1; transcriptional repression of NF-κB target genes Methyltransferase Mujtaba et al., 2013  
M. tuberculosis Rv1988 Histone H3 Direct PTM Dimethylation of histone H3R42; transcriptional repression of genes involved in ROS production Methyltransferase Yaseen et al., 2015  
BacteriaEffectorHost targetTarget pathwaysOutcomeMode of actionReference
L. monocytogenes LLO Unknown Unknown Dephosphorylation of H3S10; deacetylation of H4 Cholesterol-dependent cytolysin pore-forming toxin Hamon et al., 2007  
L. monocytogenes InlB SIRT2 PI3K/AKT Deacetylation of H3K18 Binds to the cell surface receptor c-Met Eskandarian et al., 2013  
S. flexneri OspF ERK and p38 (MAPKs) MAPK Dephosphorylation of H3S10 Phosphothreonine lyase Arbibe et al., 2007; Li et al., 2007; Zhu et al., 2007  
S. typhimurium SpvC ERK (MAPKs) MAPK Dephosphorylation of MAPKs Phosphothreonine lyase Li et al., 2007; Zhu et al., 2007; Haneda et al., 2012  
C. trachomatis NUE Histones H2B, H3, and H4 Direct PTMa Transcriptional repression Methyltransferase Pennini et al., 2010  
L. pneumophila Paris RomA Histone H3 Direct PTM Methylation of H3K14; transcriptional repression Methyltransferase Rolando et al., 2013  
L. pneumophila Philadelphia LP02 LegAS4 Histone H3 Direct PTM Methylation of H3K4; transcriptional activation of ribosomal RNA genes Methyltransferase Li et al., 2013  
B. anthracisb BaSET Histone H1 Direct PTM; NF-κB Trimethylation of histone H1; transcriptional repression of NF-κB target genes Methyltransferase Mujtaba et al., 2013  
M. tuberculosis Rv1988 Histone H3 Direct PTM Dimethylation of histone H3R42; transcriptional repression of genes involved in ROS production Methyltransferase Yaseen et al., 2015  
a

PTM, posttranslational modification.

b

Extracellular pathogen.

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