Results 21 to 30 of about 2,121 (177)

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

Hemes and hemeproteins

open access: yesJournal of Inorganic Biochemistry, 1986
David A. Baldwin   +2 more
openaire   +2 more sources

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

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

Mechanisms of Neuronal Damage in Acute Hepatic Porphyrias

open access: yesDiagnostics, 2021
Porphyrias are a group of congenital and acquired diseases caused by an enzymatic impairment in the biosynthesis of heme. Depending on the specific enzyme involved, different types of porphyrias (i.e., chronic vs. acute, cutaneous vs.
Andrea Ricci   +3 more
doaj   +1 more source

Hydrogen Sulfide and Hemeproteins: Knowledge and Mysteries [PDF]

open access: yesAntioxidants & Redox Signaling, 2011
Historically, hydrogen sulfide (H(2)S) has been regarded as a poisonous gas, with a wide spectrum of toxic effects. However, like ·NO and CO, H(2)S is now referred to as a signaling gas involved in numerous physiological processes. The list of reports highlighting the physiological effects of H(2)S is rapidly expanding and several drug candidates are ...
Ruth, Pietri   +2 more
openaire   +2 more sources

Hypoxic Regulation of the Large-Conductance, Calcium and Voltage-Activated Potassium Channel, BK

open access: yesFrontiers in Physiology, 2021
Hypoxia is a condition characterized by a reduction of cellular oxygen levels derived from alterations in oxygen balance. Hypoxic events trigger changes in cell-signaling cascades, oxidative stress, activation of pro-inflammatory molecules, and growth ...
Sara V. Ochoa   +9 more
doaj   +1 more source

New insights into the role of heme oxygenase-1 in acute kidney injury

open access: yesKidney Research and Clinical Practice, 2020
Acute kidney injury (AKI) is attended by injury-related biomarkers appearing in the urine and serum, decreased urine output, and impaired glomerular filtration rate.
Meryl Nath, Anupam Agarwal
doaj   +1 more source

Encapsulation of sugar beet phytoglobin BvPgb 1.2 and myoglobin in a lipid sponge phase system

open access: yesFrontiers in Soft Matter, 2023
Globins are usually associated with oxygen carriage in vertebrates. However, plants also contain similar heme-containing proteins, called phytoglobins (Pgbs).
Jennifer Gilbert   +7 more
doaj   +1 more source

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