Results 261 to 270 of about 232,755 (310)
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The role of the heme propionates in heme biochemistry
Journal of Inorganic Biochemistry, 2006There are numerous studies, relying on both experimental and theoretical observations, illustrating the active role of the heme propionates in regulating electron delivery to the iron center as well as biochemical properties of the heme. Evidences for this come from a wide variety of heme containing systems: cytochromes, heme peroxidases, globins, etc.
Victor, Guallar, Brett, Olsen
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Is the host heme incorporated in microbial heme‐proteins?
IUBMB Life, 2008[No abstract available]
Federica Tiburzi +2 more
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Heme: emergent roles of heme in signal transduction, functional regulation and as catalytic centres.
Chemical Society Reviews, 2019Protoporphyrin IX iron complex (heme) is an important cofactor for oxygen transfer, oxygen storage, oxygen activation, and electron transfer when bound to the heme proteins hemoglobin, myoglobin, cytochrome P450 and cytochrome c, respectively.
Toru Shimizu +3 more
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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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Heme in the treatment of heme deficiency states
Scandinavian Journal of Clinical and Laboratory Investigation, 1990The mechanism of regulation of heme biosynthesis is of great interest for both biological and medical reasons. The hepatic and erythropoietic porphyrias are shown to be hereditary or acquired disorders characterized by defects in specific enzymes of the heme biosynthetic pathway.
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Die Naturwissenschaften, 1970
Some of the general concepts which have emerged in the elucidation of the biochemical reactions and transformations which occur in living organisms, summarized very briefly, are that the basic chemical reactions in the cell are rather simple, that the celt synthesizes its complex molecules from relatively simple and available substances and that there ...
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Some of the general concepts which have emerged in the elucidation of the biochemical reactions and transformations which occur in living organisms, summarized very briefly, are that the basic chemical reactions in the cell are rather simple, that the celt synthesizes its complex molecules from relatively simple and available substances and that there ...
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The Biosynthesis of Heme O and Heme A Is Not Regulated by Copper
Biochemistry, 2005Heme A is an obligatory cofactor in all eukaryotic and many prokaryotic cytochrome c oxidase (CcO) enzymes. Despite its obvious importance to CcO and the electron transport pathway, essentially nothing is known concerning the regulation of heme A. Because CcO is the only natural target for heme A and copper is also required for CcO activity, it was ...
M Scott, Morrison +2 more
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Transfer of heme from heme-albumin to hemopexin
Biochimica et Biophysica Acta (BBA) - General Subjects, 1976Exchange of heme in vitro between two heme-binding serum proteins, albumin and hemopexin, was examined spectrophotometrically. Hemopexin, albumin and heme in molar ratios of 1 : 70 : 1 were incubated at 22 degrees C, pH 7.3. The heme was added as free heme, heme-hemopexin or methemalbumin. Due to the high affinity of hemopexin for heme, Kd near 10(-13)
W T, Morgan +3 more
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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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Processing of Heme and Heme-Containing Proteins by Bacteria
DNA and Cell Biology, 2002An extensive amount of new knowledge on bacterial systems involved in heme processing has been accumulated in the last 10 years. We discuss common themes in heme transport across bacterial outer and inner membranes, emphasizing proteins and mechanisms involved.
Igor, Stojiljkovic +1 more
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