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Ferric species of the giant extracellular hemoglobin of Glossoscolex paulistus as function of pH: an EPR study on the irreversibility of the heme transitions
(ElsevierNew York, 2008-07)
The present article is focused on the transitions of ferric heme species of the giant extracellular hemoglobin of Glossoscolex paulistus (HbGp) induced by successive alterations in pH, involving alkaline and acid mediums. ...
Preparation and characterization of iron-alginate beads with some types of iron used in supplementation and fortification strategies
(Elsevier, 2018)
Our work aimed to develop and characterize different alginate beads with either non-heme iron or a blend of heme/non-heme iron. We chose non-heme iron salts such as ferrous sulfate (FS), ferrous ammonium sulfate (FAS), ...
Ligand changes in ferric species of the giant extracellular hemoglobin of Glossoscolex paulistus as function of pH: correlations between redox, spectroscopic and oligomeric properties and general implications with different hemoproteins
(World Scientific PublishingSingapore, 2010-03)
The present review is focused on the relationship between oligomeric and heme properties of HbGp, emphasizing the characteristics that can be generalized to other hemoproteins. This study represents the state-of-the-art ...
Ferric species equilibrium of the giant extracellular hemoglobin of Glossoscolex paulistus in alkaline medium: HALS hemichrome as a precursor of pentacoordinate species
(ElsevierAmsterdam, 2008-03)
The present work is focused on the complex ferric heme species equilibrium of the giant extracellular hemoglobin from Glossoscolex paulistus (HbGp) in alkaline medium. EPR, UV-vis and CD spectroscopies were used in order ...
Human Heme Oxygenase Oxidation of 5- and 15-Phenylhemes
(American Society for Biochemistry and Molecular Biology, 2004-10)
Human heme oxygenase-1 (hHO-1) catalyzes the O2- dependent oxidation of heme to biliverdin, CO, and free iron. Previous work indicated that electrophilic addition of the terminal oxygen of the ferric hydroperoxo complex ...
Reactivity of inorganic sulfide species toward a heme protein model
(American Chemical Society, 2015-01)
The reactivity of inorganic sulfide species toward heme peptides was explored under biorelevant conditions in order to unravel the molecular details of the reactivity of the endogenous hydrogen sulfide toward heme proteins. ...
In Silico Insight into the Reductive Nitrosylation of Ferric Hemeproteins
(American Chemical Society, 2020-03)
A combination of in silico methods was used to extend the 5 experimental description of the reductive nitrosylation mechanism in ferric 6 hemeproteins with the molecular details of the role of surrounding amino acids. 7 ...
Interaction of giant extracellular Glossoscolex paulistus hemoglobin (HbGp) with zwitterionic surfactant N-hexadecyl-N,N-dimethyl-3-ammonio-1-propanesulfonate (HPS): Effects of oligomeric dissociation
(ELSEVIER SCIENCE BV, 2008)
The present work focuses on the interaction between the zwitterionic surfactant N-hexadecyl-N,N-dimethyl-3-ammonio-1-propanesulfonate (HPS) and the giant extracellular hemoglobin of Glossoscolex paulistus (HbGp). Electronic ...
Kinetics of nitrite reduction and peroxynitrite formation by ferrous heme in human cystathionine β-synthase
(The American Society for Biochemistry and Molecular Biology, 2016)
Cystathionine β-synthase (CBS) is a pyridoxal phosphate-dependent enzyme that catalyzes the condensation of homocysteine with serine or with cysteine to form cystathionine and either water or hydrogen sulfide, respectively. ...