Characterization of the type I restriction modification system broadly conserved among group A streptococci

S DebRoy, WC Shropshire, CN Tran, H Hao, M Gohel… - Msphere, 2021 - Am Soc Microbiol
Although prokaryotic DNA methylation investigations have long focused on immunity against
exogenous DNA, it has been recently recognized that DNA methylation impacts gene …

Epigenetic regulation alters biofilm architecture and composition in multiple clinical isolates of nontypeable Haemophilus influenzae

KL Brockman, PN Azzari, MT Branstool, JM Atack… - MBio, 2018 - Am Soc Microbiol
Biofilms play a critical role in the colonization, persistence, and pathogenesis of many
human pathogens. Multiple mucosa-associated pathogens have evolved a mechanism of …

DNA methylation in prokaryotes

J Casadesús, MA Sánchez-Romero - DNA Methyltransferases-Role and …, 2022 - Springer
The genomes of bacteria, archaea, and phage contain small amounts of C5-methylcytosine,
N4-methylcytosine, and N6-methyladenine. Base methylation takes place after DNA …

Adherence of nontypeable haemophilus influenzae to cells and substrates of the airway is differentially regulated by individual modA phasevarions

P Garai, JM Atack, BM Wills, MP Jennings… - Microbiology …, 2023 - Am Soc Microbiol
Adherence of nontypeable Haemophilus influenzae (NTHi) to the host airway is an essential
initial step for asymptomatic colonization of the nasopharynx, as well as development of …

Methylomic and phenotypic analysis of the ModH5 phasevarion of Helicobacter pylori

YN Srikhanta, RJ Gorrell, PM Power, K Tsyganov… - Scientific Reports, 2017 - nature.com
The Helicobacter pylori phase variable gene modH, typified by gene HP1522 in strain
26695, encodes a N6-adenosine type III DNA methyltransferase. Our previous studies …

Systematic Analysis of REBASE Identifies Numerous Type I Restriction-Modification Systems with Duplicated, Distinct hsdS Specificity Genes That Can Switch …

JM Atack, C Guo, T Litfin, L Yang, PJ Blackall, Y Zhou… - Msystems, 2020 - Am Soc Microbiol
ABSTRACT N 6-Adenine DNA methyltransferases associated with some Type I and Type III
restriction-modification (RM) systems are able to undergo phase variation, randomly …

Comparative genomics reveals the diversity of restriction-modification systems and DNA methylation sites in Listeria monocytogenes

P Chen, HC den Bakker, J Korlach… - Applied and …, 2017 - Am Soc Microbiol
Listeria monocytogenes is a bacterial pathogen that is found in a wide variety of
anthropogenic and natural environments. Genome sequencing technologies are rapidly …

Phase variation in HMW1A controls a phenotypic switch in Haemophilus influenzae associated with pathoadaptation during persistent infection

A Fernández-Calvet, B Euba, C Gil-Campillo… - Mbio, 2021 - Am Soc Microbiol
Genetic variants arising from within-patient evolution shed light on bacterial adaptation
during chronic infection. Contingency loci generate high levels of genetic variation in …

Identification of a DNA-cytosine methyltransferase that impacts global transcription to promote group B streptococcal vaginal colonization

HS Manzer, T Brunetti, KS Doran - Mbio, 2023 - Am Soc Microbiol
ABSTRACT Group B Streptococcus (GBS) colonizes the female reproductive tract (FRT) and
causes adverse pregnancy outcomes and invasive disease following vertical transmission to …

Streptococcus suis encodes multiple allelic variants of a phase-variable Type III DNA methyltransferase, ModS, that control distinct phasevarions

G Tram, FEC Jen, ZN Phillips, J Timms, AU Husna… - Msphere, 2021 - Am Soc Microbiol
Streptococcus suis is a significant cause of bacterial meningitis in humans, particularly in
Southeast Asia, and is a leading cause of respiratory and invasive disease in pigs. Phase …