Results 21 to 30 of about 2,013 (172)

A natural heme deficiency exists in biology that allows nitric oxide to control heme protein functions by regulating cellular heme distribution. [PDF]

open access: yesBioessays, 2023
We hypothesize that tissues exist naturally in a heme‐deficient condition that limits the heme content and functions of heme proteins. The nitric oxide (NO) that is made in our tissues can control cell heme availability in a bimodal way, and so regulate heme protein functions in health and disease.
Stuehr DJ   +5 more
europepmc   +2 more sources

Theoretical Study on the Effective Magnetic Moments of Some Hemeproteins [PDF]

open access: bronzeProgress of Theoretical Physics Supplement, 1961
It is pointed out that the measurement of the static magnetic susceptibilities over a wide temperature range will be able to the detailed information about the electronic structure of the paramagnetic heme derivatives. On the basis of the data given by the electron paramagnetic resonance experiment, formulas for the temperature dependence of the ...
Masao Kotani
openaire   +3 more sources

A Bioinformatics-Assisted Review on Iron Metabolism and Immune System to Identify Potential Biomarkers of Exercise Stress-Induced Immunosuppression

open access: yesBiomedicines, 2022
The immune function is closely related to iron (Fe) homeostasis and allostasis. The aim of this bioinformatics-assisted review was twofold; (i) to update the current knowledge of Fe metabolism and its relationship to the immune system, and (ii) to ...
Diego A. Bonilla   +9 more
doaj   +1 more source

Reversing the Enantioselectivity of Enzymatic Carbene N−H Insertion Through Mechanism‐Guided Protein Engineering**

open access: yesAngewandte Chemie, Volume 135, Issue 35, August 28, 2023., 2023
Computational modelling was employed to rationally guide protein engineering toward controlling the accessible conformations of a key lactone‐carbene (LAC) intermediate in the enzyme active site by installing a new H‐bond anchoring point. This H‐bonding interaction controls the relative orientation of the fleeting carbene intermediate, orienting it for
Carla Calvó‐Tusell   +4 more
wiley   +2 more sources

Chemoselective Caging of Carboxyl Groups for On‐Demand Protein Activation with Small Molecules

open access: yesAngewandte Chemie, Volume 135, Issue 22, May 22, 2023., 2023
The caging of amino acid side chains can provide exquisite control of protein function. The first chemical caging of carboxyl groups (Asp and Glu) in enzymic active sites is reported. Caging of a heme propionate in a protein was also feasible by this approach based on esterification with a tuned diazo compound.
Yana D. Petri   +2 more
wiley   +2 more sources

Recent Development of the Molecular and Cellular Mechanisms of Hydrogen Sulfide Gasotransmitter

open access: yesAntioxidants, 2022
Hydrogen sulfide has been recently identified as the third biological gasotransmitter, along with the more well studied nitric oxide (NO) and carbon monoxide (CO). Intensive studies on its potential as a therapeutic agent for cardiovascular, inflammatory,
Jianyun Liu   +7 more
doaj   +1 more source

The Balancing of Peroxynitrite Detoxification between Ferric Heme-Proteins and CO2: The Case of Zebrafish Nitrobindin

open access: yesAntioxidants, 2022
Nitrobindins (Nbs) are all-β-barrel heme proteins and are present in prokaryotes and eukaryotes. Although their function(s) is still obscure, Nbs trap NO and inactivate peroxynitrite.
Giovanna De Simone   +4 more
doaj   +1 more source

Recent Approaches for Manipulating Globin Gene Expression in Treating Hemoglobinopathies

open access: yesFrontiers in Genome Editing, 2021
Tissue oxygenation throughout life depends on the activity of hemoglobin (Hb) one of the hemeproteins that binds oxygen in the lungs and secures its delivery throughout the body.
Claudio Mussolino   +2 more
doaj   +1 more source

Rhabdomyolysis as cause, consequence, or mimicker of myocardial infarction: A case report

open access: yesClinical Case Reports, Volume 11, Issue 11, November 2023., 2023
Key Clinical Message A timely diagnosis is essential to start appropriate therapy and to reduce risks of life‐threatening complications of rhabdomyolysis. Some cases can undergo differential diagnosis with other clinical conditions, e.g., myocardial infarction.
Marina Nasello   +11 more
wiley   +1 more source

The Histone Chaperones SET/TAF‐1β and NPM1 Exhibit Conserved Functionality in Nucleosome Remodeling and Histone Eviction in a Cytochrome c‐Dependent Manner

open access: yesAdvanced Science, Volume 10, Issue 29, October 17, 2023., 2023
This study focuses on the molecular action of two histone chaperones: SET/template‐activating factor‐Iβ and nucleophosmin 1. It is shown how these chaperones have specificity for fully dismantled nucleosomes, characterized the histone eviction (removal) process, and its modulation by cytochrome c.
Pedro Buzón   +5 more
wiley   +1 more source

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