Negative regulation of MurZ and MurA underlies the essentiality of GpsB‐ and StkP‐mediated protein phosphorylation in Streptococcus pneumoniae D39

HCT Tsui, M Joseph, JJ Zheng, AJ Perez… - Molecular …, 2023 - Wiley Online Library
GpsB links peptidoglycan synthases to other proteins that determine the shape of the
respiratory pathogen Streptococcus pneumoniae (pneumococcus; Spn) and other low‐GC …

A link between STK signalling and capsular polysaccharide synthesis in Streptococcus suis

J Tang, M Guo, M Chen, B Xu, T Ran, W Wang… - Nature …, 2023 - nature.com
Synthesis of capsular polysaccharide (CPS), an important virulence factor of pathogenic
bacteria, is modulated by the CpsBCD phosphoregulatory system in Streptococcus …

PASTA‐kinase‐mediated signaling drives accumulation of the peptidoglycan synthesis protein MurAA to promote cephalosporin resistance in Enterococcus faecalis

CA Mascari, JL Little, CJ Kristich - Molecular Microbiology, 2023 - Wiley Online Library
The bacterial PASTA kinase, IreK, is required for intrinsic cephalosporin resistance in the
Gram‐positive opportunistic pathogen, Enterococcus faecalis. IreK activity is enhanced in …

Experimental measurement and computational prediction of bacterial Hanks‐type Ser/Thr signaling system regulatory targets

N Grunfeld, E Levine, E Libby - Molecular Microbiology, 2024 - Wiley Online Library
Bacteria possess diverse classes of signaling systems that they use to sense and respond to
their environments and execute properly timed developmental transitions. One widespread …

Comparative genomics reveals the correlations of stress response genes and bacteriophages in developing antibiotic resistance of Staphylococcus saprophyticus

K Zhang, RF Potter, J Marino, CE Muenks… - Msystems, 2023 - Am Soc Microbiol
Staphylococcus saprophyticus is the leading Gram-positive cause of uncomplicated urinary
tract infections. Recent reports of increasing antimicrobial resistance (AMR) in S …

RECON gene disruption enhances host resistance to enable genome-wide evaluation of intracellular pathogen fitness during infection

CE Stamm, AP McFarland, MN Locke, H Tabakh… - Mbio, 2024 - journals.asm.org
Transposon sequencing (Tn-seq) is a powerful genome-wide technique to assess bacterial
fitness under varying growth conditions. However, screening via Tn-seq in vivo is …

Comparative secretomic and proteomic analysis reveal multiple defensive strategies developed by Vibrio cholerae against the heavy metal (Cd2+, Ni2+, Pb2+, and …

B Zhang, J Xu, M Sun, P Yu, Y Ma, L Xie… - Frontiers in …, 2023 - frontiersin.org
Vibrio cholerae is a common waterborne pathogen that can cause pandemic cholera in
humans. The bacterium with heavy metal-tolerant phenotypes is frequently isolated from …

MurA escape mutations uncouple peptidoglycan biosynthesis from PrkA signaling

S Wamp, P Rothe, D Stern, G Holland, J Döhling… - PLoS …, 2022 - journals.plos.org
Gram-positive bacteria are protected by a thick mesh of peptidoglycan (PG) completely
engulfing their cells. This PG network is the main component of the bacterial cell wall, it …

In-depth characterization of the Clostridioides difficile phosphoproteome to identify Ser/Thr kinase substrates

T Garcia-Garcia, T Douché, QG Gianetto… - Molecular & Cellular …, 2022 - ASBMB
Clostridioides difficile is the leading cause of postantibiotic diarrhea in adults. During
infection, the bacterium must rapidly adapt to the host environment by using survival …

Listeria monocytogenes GlmR is an accessory uridyltransferase essential for cytosolic survival and virulence

DA Pensinger, KV Gutierrez, HB Smith, WJB Vincent… - Mbio, 2023 - Am Soc Microbiol
The cytosol of eukaryotic host cells is an intrinsically hostile environment for bacteria.
Understanding how cytosolic pathogens adapt to and survive in the cytosol is critical to …