[HTML][HTML] A critical role for staphylococcal nitric oxide synthase in controlling flavohemoglobin toxicity

RM Singh, SS Chaudhari, S Panda, EH Hutfless… - Redox Biology, 2023 - Elsevier
Most coagulase-negative staphylococcal species, including the opportunistic pathogen
Staphylococcus epidermidis, struggle to maintain redox homeostasis and grow under …

Maintenance of nitric oxide and redox homeostasis by the Salmonella flavohemoglobin hmp

IS Bang, L Liu, A Vazquez-Torres, ML Crouch… - Journal of Biological …, 2006 - ASBMB
Intracellular pathogens must resist the antimicrobial actions of nitric oxide (NO·) produced by
host cells. To this end pathogens possess several NO·-metabolizing enzymes. Here we …

The hmp gene encoding the NO-inducible flavohaemoglobin in Escherichia coli confers a protective advantage in resisting killing within macrophages, but not in vitro …

TM Stevanin, RC Read, RK Poole - Gene, 2007 - Elsevier
Escherichia coli flavohaemoglobin (Hmp) is the best-understood nitric oxide (NO)
detoxifying protein and exhibits a robust dioxygenase activity, converting NO to nitrate ion …

Multiple regulators of the Flavohaemoglobin (hmp) gene of Salmonella enterica serovar Typhimurium include RamA, a transcriptional regulator conferring the …

E Hernández-Urzúa, DS Zamorano-Sánchez… - Archives of …, 2007 - Springer
Microbial flavohaemoglobins are proteins with homology to haemoglobins from higher
organisms, but clearly linked to nitric oxide (NO) metabolism by bacteria and yeast. hmp …

Nitrosative stress: metabolic pathway involving the flavohemoglobin

A Hausladen, AJ Gow… - Proceedings of the …, 1998 - National Acad Sciences
Nitric oxide (NO) biology has focused on the tightly regulated enzymatic mechanism that
transforms l-arginine into a family of molecules, which serve both signaling and defense …

Quinones and nitroaromatic compounds as subversive substrates of Staphylococcus aureus flavohemoglobin

M Moussaoui, L Misevičienė, Ž Anusevičius… - Free Radical Biology …, 2018 - Elsevier
In microorganisms, flavohemoglobins (FHbs) containing FAD and heme (Fe 3+, metHb)
convert NO. into nitrate at the expense of NADH and O 2. FHbs contribute to bacterial …

Protection from nitrosative stress: a central role for microbial flavohemoglobin

MT Forrester, MW Foster - Free Radical Biology and Medicine, 2012 - Elsevier
Nitric oxide (NO) is an inevitable product of life in an oxygen-and nitrogen-rich environment.
This reactive diatomic molecule exhibits microbial cytotoxicity, in large part by facilitating …

A Nitric Oxide–Inducible Lactate Dehydrogenase Enables Staphylococcus aureus to Resist Innate Immunity

AR Richardson, SJ Libby, FC Fang - Science, 2008 - science.org
Staphylococcus aureus is one of the most successful human pathogens, colonizing 2 billion
individuals worldwide and causing invasive infections even in immunocompetent hosts. S …

The flavohemoglobin of Escherichia coli confers resistance to a nitrosating agent, a “nitric oxide releaser,” and paraquat and is essential for transcriptional responses …

J Membrillo-Hernández, MD Coopamah… - Journal of Biological …, 1999 - ASBMB
Escherichia coli possesses a flavohemoglobin (Hmp), product of hmp, the first microbial
globin gene to be sequenced and characterized at the molecular level. Although related …

Antimicrobial agents act differently on Staphyloccocus aureus and Ralstonia eutropha flavohemoglobins

A Ezzine, M Moussaoui, E El Hammi… - Applied biochemistry …, 2014 - Springer
Flavohemoglobins (FlavoHb) play a key role in bacterial resistance to nitrosative stress and
NO signaling modulation. In this study, we cloned, expressed, and characterized the flavoHb …