Results 271 to 280 of about 232,755 (310)
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Kinetics of heme interaction with heme-binding proteins: The effect of heme aggregation state

Biochimica et Biophysica Acta (BBA) - General Subjects, 1997
The kinetics of the interaction of heme with hemopexin and albumin was monitored by measuring the time dependence of changes in the Soret absorption spectra. Since the protein binding sites can only bind heme monomers, the binding kinetics apparently reflected the slow dissociation of heme dimers, resulting from dimer/monomer equilibria in aqueous heme
K, Kuzelová, M, Mrhalová, Z, Hrkal
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The source of heme for vascular heme oxygenase I: heme uptake in rat aorta

Canadian Journal of Physiology and Pharmacology, 2004
During the last decade, heme oxygenase (HO) and carbon monoxide (CO) have garnered substantial research interest in terms of cell and organ regulation, especially as they bear on the central nervous system, organ transplantation, and the cardiovascular system. While the enzymatic mechanism, substrates, and products of HO are well known, it is not clear
Loc, Bui   +8 more
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Biosynthesis of Hemes

EcoSal Plus, 2007
This review is concerned specifically with the structures and biosynthesis of hemes in E. coli and serovar Typhimurium. However, inasmuch as all tetrapyrroles share a common biosynthetic pathway, much of the material covered here is applicable to tetrapyrrole biosynthesis in other organisms.
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Environmental Heme Utilization by Heme-Auxotrophic Bacteria

2012
Heme, 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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‘En Hemed, Hemed Inerchange

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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Electron paramagnetic resonance (EPR) studies on heme-heme interaction in aggregate heme and multi-heme systems

Biochemical and Biophysical Research Communications, 1970
Abstract EPR studies at low temperature on the ferriheme undecapeptide of cytochrome c at alkaline pH in the aggregate state reveal a quite broadened low-spin heme absorption. Successive cycles of reduction and reoxidation cause a slight change in the aggregate. The g-values of this aggregate are at 3.03, 2.16 and 1.46.
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Different Faces of the Heme-Heme Oxygenase System in Inflammation

Pharmacological Reviews, 2003
The heme-heme oxygenase system has recently been recognized to possess important regulatory properties. It is tightly involved in both physiological as well as pathophysiological processes, such as cytoprotection, apoptosis, and inflammation. Heme functions as a double-edged sword.
Wagener, F.A.D.T.G.   +6 more
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The Janus Nature of Heme

ChemInform, 2007
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
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The Absence of "Heme-Heme" Interactions in Hemoglobin

Science, 1969
R G, Shulman   +5 more
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