Glutamate decarboxylase‐dependent acid resistance in orally acquired bacteria: function, distribution and biomedical implications of the gadBC operon

D De Biase, E Pennacchietti - Molecular microbiology, 2012 - Wiley Online Library
For successful colonization of the mammalian host, orally acquired bacteria must overcome
the extreme acidic stress (pH< 2.5) encountered during transit through the host stomach …

Rationally seeded computational protein design of ɑ-helical barrels

KI Albanese, R Petrenas, F Pirro, EA Naudin… - Nature Chemical …, 2024 - nature.com
Computational protein design is advancing rapidly. Here we describe efficient routes starting
from validated parallel and antiparallel peptide assemblies to design two families of α …

Acid evolution of Escherichia coli K-12 eliminates amino acid decarboxylases and reregulates catabolism

A He, SR Penix, PJ Basting, JM Griffith… - Applied and …, 2017 - Am Soc Microbiol
Acid-adapted strains of Escherichia coli K-12 W3110 were obtained by serial culture in
medium buffered at pH 4.6 (MM Harden, A. He, K. Creamer, MW Clark, I. Hamdallah, KA …

The inner membrane protein YhiM links copper and CpxAR envelope stress responses in uropathogenic E. coli

P Saenkham-Huntsinger, M Ritter, GL Donati… - Mbio, 2024 - Am Soc Microbiol
Urinary tract infection (UTI) is a ubiquitous infectious condition, and uropathogenic
Escherichia coli (UPEC) is the predominant causative agent of UTI. Copper (Cu) is …

A shift to human body temperature (37 C) rapidly reprograms multiple adaptive responses in Escherichia coli that would facilitate niche survival and colonization

A Gant Kanegusuku, IN Stankovic… - Journal of …, 2021 - Am Soc Microbiol
One of the first environmental cues sensed by a microbe as it enters a human host is an
upshift in temperature to 37° C. In this dynamic time point analysis, we demonstrate that this …

Characterization of the YdeO Regulon in Escherichia coli

Y Yamanaka, T Oshima, A Ishihama, K Yamamoto - PLoS One, 2014 - journals.plos.org
Enterobacteria are able to survive under stressful conditions within animals, such as acidic
conditions in the stomach, bile salts during transfer to the intestine and anaerobic conditions …

Probiotic Enterococcus faecalis Symbioflor® down regulates virulence genes of EHEC in vitro and decrease pathogenicity in a Caenorhabditis elegans model

K Neuhaus, MC Lamparter, B Zölch… - Archives of …, 2017 - Springer
Abstract Enterohemorrhagic E. coli O157: H7 (EHEC) shorten the lifespan of Caenorhabditis
elegans compared to avirulent bacteria. Co-feeding EHEC with Enterococcus faecalis …

Whole-genome sequencing and genetic analysis reveal novel stress responses to individual constituents of essential oils in Escherichia coli

B Chueca, A Renzoni, D Berdejo… - Applied and …, 2018 - Am Soc Microbiol
Food preservation by the use of essential oils (EOs) is being extensively studied because of
the antimicrobial properties of their individual constituents (ICs). Three resistant mutants …

Rationally seeded computational protein design

KI Albanese, R Petrenas, F Pirro, EA Naudin, U Borucu… - bioRxiv, 2023 - biorxiv.org
Computational protein design is advancing rapidly. Here we describe efficient routes to two
families of α-helical-barrel proteins with central channels that bind small molecules. The …

Acid survival mechanisms in neutralophilic bacteria

E Pennacchietti, F Giovannercole… - … Regulation of Gene …, 2016 - Wiley Online Library
Numerous commensal and pathogenic Gram‐negative and Gram‐positive bacteria are
referred to as neutralophiles because they grow best at pH levels close to neutrality. Thus …