Small ligand–globin interactions: reviewing lessons derived from computer simulation

L Capece, L Boechi, LL Perissinotti… - … et Biophysica Acta (BBA …, 2013 - Elsevier
In this work we review the application of classical and quantum-mechanical atomistic
computer simulation tools to the investigation of small ligand interaction with globins. In the …

Defenses of multidrug resistant pathogens against reactive nitrogen species produced in infected hosts

SM Carvalho, JZ Beas, MAM Videira… - Advances in Microbial …, 2022 - Elsevier
Bacterial pathogens have sophisticated systems that allow them to survive in hosts in which
innate immunity is the frontline of defense. One of the substances produced by infected …

QM/MM study of the C—C coupling reaction mechanism of CYP121, an essential Cytochrome p450 of Mycobacterium tuberculosis

VG Dumas, LA Defelipe, AA Petruk… - Proteins: Structure …, 2014 - Wiley Online Library
Among 20 p450s of Mycobacterium tuberculosis (Mt), CYP121 has received an outstanding
interest, not only due to its essentiality for bacterial viability but also because it catalyzes an …

Kinetics, subcellular localization, and contribution to parasite virulence of a Trypanosoma cruzi hybrid type A heme peroxidase (TcAPx-CcP)

M Hugo, A Martínez, M Trujillo… - Proceedings of the …, 2017 - National Acad Sciences
The Trypanosoma cruzi ascorbate peroxidase is, by sequence analysis, a hybrid type A
member of class I heme peroxidases [Tc APx-cytochrome c peroxidase (CcP)], suggesting …

Ordered Motions in the Nitric-Oxide Dioxygenase Mechanism of Flavohemoglobin and Assorted Globins with Tightly Coupled Reductases

PR Gardner - Protein Reviews: Volume 23, 2022 - Springer
Nitric-oxide dioxygenases (NODs) activate and combine O2 with NO to form nitrate. A variety
of oxygen-binding hemoglobins with associated partner reductases or electron donors …

[HTML][HTML] Mechanistic insight into the enzymatic reduction of truncated hemoglobin N of Mycobacterium tuberculosis: role of the CD loop and pre-A motif in electron …

S Singh, N Thakur, A Oliveira, AA Petruk… - Journal of Biological …, 2014 - ASBMB
Many pathogenic microorganisms have evolved hemoglobin-mediated nitric oxide (NO)
detoxification mechanisms, where a globin domain in conjunction with a partner reductase …

[HTML][HTML] Allostery in the nitric oxide dioxygenase mechanism of flavohemoglobin

AM Gardner, PR Gardner - Journal of Biological Chemistry, 2021 - ASBMB
The substrates O 2 and NO cooperatively activate the NO dioxygenase function of
Escherichia coli flavohemoglobin. Steady-state and transient kinetic measurements support …

Type I flavohemoglobin of mycobacterium smegmatis is a functional nitric oxide dioxygenase

N Thakur, S Gupta, MD Hade, KL Dikshit - IUBMB life, 2014 - Wiley Online Library
Two flavohemoglobins, type I and type II, displaying distinct structural features and cofactor
binding sites coexist in Mycobacterium smegmatis; however, none of these …

Resonance Raman studies on the flavohemoglobin of the protist Giardia intestinalis: evidence of a type I/II-peroxidase-like heme environment and roles of the active …

B Lukaszewicz, E McColl, J Yee, S Rafferty… - JBIC Journal of …, 2017 - Springer
Flavohemoglobins are microbial enzymes that counter nitrosative stress, but the details of
their underlying enzymatic activities and structure–function relationships are not completely …

[HTML][HTML] Impact of azole drugs on energetics, kinetics, and ligand migration pathways of CO photo-dissociation in bacterial flavohemoglobins

D Butcher, M Moussaoui, L Baciou, J Miksovska - RSC advances, 2020 - pubs.rsc.org
Flavohemoglobins (fHbs) are heme proteins found in prokaryotic and eukaryotic microbes.
They are involved in NO detoxification through an NO˙ dioxygenase mechanism. The N …