Streptococcus pneumoniae two-component regulatory systems: The interplay of the pneumococcus with its environment

A Gómez-Mejia, G Gámez, S Hammerschmidt - International Journal of …, 2018 - Elsevier
Streptococcus pneumoniae is a human pathobiont possessing a diverse array of
multifunctional proteins essential for bacterial fitness and virulence. Gene expression is …

The many roles of the bacterial second messenger cyclic di-AMP in adapting to stress cues

TM Zarrella, G Bai - Journal of bacteriology, 2020 - Am Soc Microbiol
Bacteria respond to changes in environmental conditions through adaptation to external
cues. Frequently, bacteria employ nucleotide signaling molecules to mediate a specific …

Cryo-EM reveals distinct conformations of E. coli ATP synthase on exposure to ATP

M Sobti, R Ishmukhametov, JC Bouwer, A Ayer… - Elife, 2019 - elifesciences.org
ATP synthase produces the majority of cellular energy in most cells. We have previously
reported cryo-EM maps of autoinhibited E. coli ATP synthase imaged without addition of …

Importance of protein Ser/Thr/Tyr phosphorylation for bacterial pathogenesis

J Bonne Køhler, C Jers, M Senissar, L Shi… - FEBS …, 2020 - Wiley Online Library
Protein phosphorylation regulates a large variety of biological processes in all living cells. In
pathogenic bacteria, the study of serine, threonine, and tyrosine (Ser/Thr/Tyr) …

The role and regulatory network of the CiaRH two-component system in streptococcal species

LY He, YJ Le, Z Guo, S Li, XY Yang - Frontiers in Microbiology, 2021 - frontiersin.org
Pathogenic streptococcal species are responsible for a broad spectrum of human diseases
ranging from non-invasive and localized infections to more aggressive and life-threatening …

Host cell oxidative stress promotes intracellular fluoroquinolone Persisters of Streptococcus pneumoniae

M Hernandez-Morfa, NM Reinoso-Vizcaíno… - Microbiology …, 2022 - Am Soc Microbiol
Bacterial persisters represent a small subpopulation that tolerates high antibiotic
concentrations without acquiring heritable resistance, and it may be generated by …

Stress suppressor screening leads to detection of regulation of cyclic di-AMP homeostasis by a Trk family effector protein in Streptococcus pneumoniae

TM Zarrella, DW Metzger, G Bai - Journal of bacteriology, 2018 - Am Soc Microbiol
Cyclic di-AMP (c-di-AMP) is a newly discovered bacterial second messenger. However,
regulation of c-di-AMP homeostasis is poorly understood. In Streptococcus pneumoniae, a …

The oxidative stress response of Streptococcus pneumoniae: its contribution to both extracellular and intracellular survival

M Hernandez-Morfa, NB Olivero, VE Zappia… - Frontiers in …, 2023 - frontiersin.org
Streptococcus pneumoniae is a gram-positive, aerotolerant bacterium that naturally
colonizes the human nasopharynx, but also causes invasive infections and is a major cause …

Bacterial second messenger cyclic di-AMP modulates the competence state in Streptococcus pneumoniae

TM Zarrella, J Yang, DW Metzger, G Bai - Journal of Bacteriology, 2020 - Am Soc Microbiol
Streptococcus pneumoniae (the pneumococcus) is a naturally competent organism that
causes diseases such as pneumonia, otitis media, and bacteremia. The essential bacterial …

Crosstalk between the serine/threonine kinase StkP and the response regulator ComE controls the stress response and intracellular survival of Streptococcus …

GE Pinas, NM Reinoso-Vizcaino… - PLoS …, 2018 - journals.plos.org
Streptococcus pneumoniae is an opportunistic human bacterial pathogen that usually
colonizes the upper respiratory tract, but the invasion and survival mechanism in respiratory …