Ligand-induced allostery in the interaction of the Pseudomonas aeruginosa heme binding protein with heme oxygenase

DJ Deredge, W Huang, C Hui… - Proceedings of the …, 2017 - National Acad Sciences
A heme-dependent conformational rearrangement of the C-terminal domain of heme
binding protein (PhuS) is required for interaction with the iron-regulated heme oxygenase …

The heme-responsive PrrH sRNA regulates Pseudomonas aeruginosa pyochelin gene expression

TM Hoang, W Huang, J Gans, J Weiner, E Nowak… - Msphere, 2023 - Am Soc Microbiol
Pseudomonas aeruginosa is an opportunistic pathogen that requires iron for growth and
virulence, yet this nutrient is sequestered by the innate immune system during infection …

Use of a multiplex transcript method for analysis of Pseudomonas aeruginosa gene expression profiles in the cystic fibrosis lung

AH Gifford, SD Willger, EL Dolben… - Infection and …, 2016 - Am Soc Microbiol
The discovery of therapies that modulate Pseudomonas aeruginosa virulence or that can
eradicate chronic P. aeruginosa lung infections associated with cystic fibrosis (CF) will be …

The small protein HemP is a transcriptional activator for the hemin uptake operon in Burkholderia multivorans ATCC 17616

T Sato, S Nonoyama, A Kimura, Y Nagata… - Applied and …, 2017 - Am Soc Microbiol
Iron and heme play very important roles in various metabolic functions in bacteria, and their
intracellular homeostasis is maintained because high concentrations of free forms of these …

[HTML][HTML] Contributions of the heme coordinating ligands of the Pseudomonas aeruginosa outer membrane receptor HasR to extracellular heme sensing and transport

AT Dent, A Wilks - Journal of Biological Chemistry, 2020 - ASBMB
Pseudomonas aeruginosa exhibits a high requirement for iron, which it can acquire via
several mechanisms, including the acquisition and utilization of heme. The P. aeruginosa …

[HTML][HTML] A Cationic Porphyrin, ZnPor, Disassembles Pseudomonas aeruginosa Biofilm Matrix, Kills Cells Directly, and Enhances Antibiotic Activity of Tobramycin

N Patel, S Swavey, J Robinson - Antibiotics, 2020 - mdpi.com
One of the greatest threats to human health is the rise in antibiotic-resistant bacterial
infections. Pseudomonas aeruginosa (PsA) is an “opportunistic” pathogen known to cause …

Axial heme coordination by the tyr-his motif in the extracellular hemophore hasap is critical for the release of heme to the HasR receptor of Pseudomonas aeruginosa

AT Dent, M Brimberry, T Albert, WN Lanzilotta… - Biochemistry, 2021 - ACS Publications
Pseudomonas aeruginosa senses extracellular heme via an extra cytoplasmic function σ
factor that is activated upon interaction of the hemophore holo-HasAp with the HasR …

Extracellular haem utilization by the opportunistic pathogen Pseudomonas aeruginosa and its role in virulence and pathogenesis

S Mouriño, A Wilks - Advances in microbial physiology, 2021 - Elsevier
Iron is an essential micronutrient for all bacteria but presents a significant challenge given its
limited bioavailability. Furthermore, iron's toxicity combined with the need to maintain iron …

High-level expression of cell-surface signaling system Hxu enhances Pseudomonas aeruginosa bloodstream infection

F Yang, Y Zhou, P Chen, Z Cai, Z Yue, Y Jin… - Infection and …, 2022 - Am Soc Microbiol
Bloodstream infections (BSIs) caused by Pseudomonas aeruginosa are associated with a
high mortality rate in the clinic. However, the fitness mechanisms responsible for the …

Evidence for Porphyrin-Mediated Electron Transfer in the Radical SAM Enzyme HutW

M Brimberry, P Corrigan, A Silakov, WN Lanzilotta - Biochemistry, 2023 - ACS Publications
Bacteria that infect the human gut must compete for essential nutrients, including iron, under
a variety of different metabolic conditions. Several enteric pathogens, including Vibrio …