Results 301 to 310 of about 414,309 (352)
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Chemistry – A European Journal, 2007
AbstractThe ions formally corresponding to protonated heme [FeII–hemeH]+ have been obtained by collision‐induced dissociation from the electrospray ionization of microperoxidase (MP11) and their gas‐phase chemistry has been studied by FTICR mass spectrometry.
CHIAVARINO, Barbara +3 more
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AbstractThe ions formally corresponding to protonated heme [FeII–hemeH]+ have been obtained by collision‐induced dissociation from the electrospray ionization of microperoxidase (MP11) and their gas‐phase chemistry has been studied by FTICR mass spectrometry.
CHIAVARINO, Barbara +3 more
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Heme oxygenase and heme degradation
Biochemical and Biophysical Research Communications, 2005The microsomal heme oxygenase system consists of heme oxygenase (HO) and NADPH-cytochrome P450 reductase, and plays a key role in the physiological catabolism of heme which yields biliverdin, carbon monoxide, and iron as the final products. Heme degradation proceeds essentially as a series of autocatalytic oxidation reactions involving heme bound to HO.
Goro, Kikuchi +2 more
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THE HEME OXYGENASE SYSTEM:A Regulator of Second Messenger Gases
Annual Review of Pharmacology and Toxicology, 1997M. Maines
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Heme-heme interaction in cytochrome oxidase
Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1972Abstract The cytochromes a and a 3 of intact pigeon heart mitochondria are shown to contribute equally to the α band of cytochrome oxidase in the absence of added ligands. The oxidation-reduction midpoint potentials of the cytochromes a and a 3 at pH 7·2 are −220 mV and +380 mV, respectively.
D F, Wilson +2 more
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Evidence of heme-heme interaction in heme-spin-labeled hemoglobin
Biochemical and Biophysical Research Communications, 1971Summary Two kinds of valency hybrid hemoglobins containing spin-labeled ferric heme in one type of subunit were prepared. The electron paramagnetic resonance spectra of the α-(αSLFe +++ -βFe ++ O 2 ) and 3-(α-Fe ++ O 2 -βSLFe +++ ) spin-labeled hemoglobins were different, suggesting their non-equivalent conformational properties in hemoglobin ...
T, Asakura, H R, Drott
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Relationship of heme c, nitrogen loading capacity and temperature in anammox reactor.
Science of the Total Environment, 2019The characteristic carmine red color due to heme proteins is always observed in enriched anammox biomass. Heme c is a very important co-factor participating the main metabolic reactions with catalytic and electron-transfer potential in the anammox ...
Haiyuan Ma +4 more
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Mechanism of heme degradation by heme oxygenase
Journal of Inorganic Biochemistry, 2000Heme oxygenase catalyzes the three step-wise oxidation of hemin to alpha-biliverdin, via alpha-meso-hydroxyhemin, verdoheme, and ferric iron-biliverdin complex. This enzyme is a simple protein which does not have any prosthetic groups. However, heme and its two metabolites, alpha-meso-hydroxyhemin and verdoheme, combine with the enzyme and activate ...
T, Yoshida, C T, Migita
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Multiheme proteins: effect of heme–heme interactions
Dalton Transactions, 2018This Frontier illustrates a brief personal account on the effect of heme–heme interactions in dihemes which thereby discloses some of the evolutionary design principles involved in multiheme proteins for their diverse structures and functions.
Dipti Lai +2 more
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Environmental Heme Utilization by Heme-Auxotrophic Bacteria
2012Heme, an iron-containing porphyrin, is the prosthetic group for numerous key cellular enzymatic and regulatory processes. Many bacteria encode the biosynthetic enzymes needed for autonomous heme production. Remarkably, however, numerous other bacteria lack a complete heme biosynthesis pathway, yet encode heme-requiring functions.
Gruss, Alexandra +2 more
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Hadashot Arkheologiyot - Excavations and Surveys in Israel, 2015
In March 2014, a salvage excavation was conducted in an open area immediately to the south of Highway 1, between the Hemed and Har'el interchangess, prior to expansion of the road (Permit No. A-7125; map ref. 212753-73/634143-54, 212985-3000/634089-116; (Fig. 1). The excavation,
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In March 2014, a salvage excavation was conducted in an open area immediately to the south of Highway 1, between the Hemed and Har'el interchangess, prior to expansion of the road (Permit No. A-7125; map ref. 212753-73/634143-54, 212985-3000/634089-116; (Fig. 1). The excavation,
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