Results 31 to 40 of about 414,627 (398)

Discovering How Heme Controls Genome Function Through Heme-omics

open access: yesCell Reports, 2020
Summary: Protein ensembles control genome function by establishing, maintaining, and deconstructing cell-type-specific chromosomal landscapes. A plethora of small molecules orchestrate cellular functions and therefore may link physiological processes ...
Ruiqi Liao   +12 more
doaj   +1 more source

Heme iron from meat and risk of colorectal cancer: a meta-analysis and a review of the mechanisms involved [PDF]

open access: yes, 2011
Red meat and processed meat intake is associated with a risk of colorectal cancer, a major cause of death in affluent countries. Epidemiological and experimental evidence supports the hypothesis that heme iron present in meat promotes colorectal cancer ...
Bingham   +24 more
core   +4 more sources

Regulation of nitric oxide signaling by formation of a distal receptor-ligand complex. [PDF]

open access: yes, 2017
The binding of nitric oxide (NO) to the heme cofactor of heme-nitric oxide/oxygen binding (H-NOX) proteins can lead to the dissociation of the heme-ligating histidine residue and yield a five-coordinate nitrosyl complex, an important step for NO ...
Britt, R David   +5 more
core   +1 more source

Targeting the Heme-Heme Oxygenase System to Prevent Severe Complications Following COVID-19 Infections

open access: yesAntioxidants, 2020
SARS-CoV-2 is causing a pandemic resulting in high morbidity and mortality. COVID-19 patients suffering from acute respiratory distress syndrome (ARDS) are often critically ill and show lung injury and hemolysis.
F. Wagener   +4 more
semanticscholar   +1 more source

Control of intracellular heme levels: Heme transporters and heme oxygenases

open access: yesBiochimica et Biophysica Acta (BBA) - Molecular Cell Research, 2011
Heme serves as a co-factor in proteins involved in fundamental biological processes including oxidative metabolism, oxygen storage and transport, signal transduction and drug metabolism. In addition, heme is important for systemic iron homeostasis in mammals.
Anwar A. Khan, John G. Quigley
openaire   +3 more sources

Multi-heme Cytochromes in Shewanella oneidensis MR-1:Structures, functions and opportunities [PDF]

open access: yes, 2015
Multi-heme cytochromes are employed by a range of microorganisms to transport electrons over distances of up to tens of nanometers. Perhaps the most spectacular utilization of these proteins is in the reduction of extracellular solid substrates ...
Brown JP   +9 more
core   +1 more source

Structure-Guided Recombination Creates an Artificial Family of Cytochromes P450 [PDF]

open access: yes, 2006
Creating artificial protein families affords new opportunities to explore the determinants of structure and biological function free from many of the constraints of natural selection.
Arnold, Frances H.   +5 more
core   +1 more source

Oxygen Activation and Radical Transformations in Heme Proteins and Metalloporphyrins

open access: yesChemical Reviews, 2017
As a result of the adaptation of life to an aerobic environment, nature has evolved a panoply of metalloproteins for oxidative metabolism and protection against reactive oxygen species. Despite the diverse structures and functions of these proteins, they
Xiong Huang, J. Groves
semanticscholar   +1 more source

Heme Oxygenase-2 Is a Hemoprotein and Binds Heme through Heme Regulatory Motifs That Are Not Involved in Heme Catalysis [PDF]

open access: yesJournal of Biological Chemistry, 1997
The heme oxygenase (HO) system degrades heme to biliverdin and CO and releases chelated iron. In the primary sequence of the constitutive form, HO-2, there are three potential heme binding sites: two heme regulatory motifs (HRMs) with the absolutely conserved Cys-Pro pair, and a conserved 24-residue heme catalytic pocket with a histidine residue ...
Tian J. Huang   +2 more
openaire   +3 more sources

Staphylococcus aureus HemX Modulates Glutamyl-tRNA Reductase Abundance To Regulate Heme Biosynthesis

open access: yesmBio, 2018
Staphylococcus aureus is responsible for a significant amount of devastating disease. Its ability to colonize the host and cause infection is supported by a variety of proteins that are dependent on the cofactor heme.
Jacob E. Choby   +5 more
doaj   +1 more source

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