Results 31 to 40 of about 97,747 (236)

A Novel 3-Phytosterone-9α-Hydroxylase Oxygenation Component and Its Application in Bioconversion of 4-Androstene-3,17-Dione to 9α-Hydroxy-4-Androstene-3,17-Dione Coupling with A NADH Regeneration Formate Dehydrogenase

open access: yesMolecules, 2019
9α-Hydroxy-4-androstene-3,17-dione (9-OH-AD) is one of the significant intermediates for the preparation of β-methasone, dexamethasone, and other steroids. In general, the key enzyme that enables the biotransformation of 4-androstene-3,17-dione
Xian Zhang   +10 more
doaj   +1 more source

Bayesian Estimation of the Hydroxyl Radical Diffusion Coefficient at Low Temperature and High Pressure from Atomistic Molecular Dynamics [PDF]

open access: yes, 2021
The hydroxyl radical is the primary reactive oxygen species produced by the radiolysis of water, and is a significant source of radiation damage to living organisms. Mobility of the hydroxyl radical at low temperatures and/or high pressures is hence a potentially important factor in determining the challenges facing psychrophilic and/or barophilic ...
arxiv   +1 more source

Modulation of TRP Channel Activity by Hydroxylation and Its Therapeutic Potential

open access: yesPharmaceuticals, 2017
Two transient receptor potential (TRP) channels—TRPA1 and TRPV3—are post-translationally hydroxylated, resulting in oxygen-dependent regulation of channel activity.
Yagnesh Nagarajan   +2 more
doaj   +1 more source

Dynamics and fragmentation mechanism of (CH3-C5H4)Pt(CH3)3 on SiO2 Surfaces [PDF]

open access: yesBeilstein Journal of Nanotechnolgy 2018, 9, 711, 2017
The interaction of (CH3-C5H4)Pt(CH3)3 ((methylcyclopentadienyl)trimethylplatinum)) molecules on fully and partially hydroxylated SiO2 surfaces, as well as the dynamics of this interaction were investigated using density functional theory (DFT) and finite temperature DFT-based molecular dynamics simulations.
arxiv   +1 more source

Lack of activity of recombinant HIF prolyl hydroxylases (PHDs) on reported non-HIF substrates

open access: yeseLife, 2019
Human and other animal cells deploy three closely related dioxygenases (PHD 1, 2 and 3) to signal oxygen levels by catalysing oxygen regulated prolyl hydroxylation of the transcription factor HIF. The discovery of the HIF prolyl-hydroxylase (PHD) enzymes
Matthew E Cockman   +10 more
doaj   +1 more source

Role of prolyl hydroxylation in the molecular interactions of collagens

open access: yesEssays in Biochemistry, 2019
Co- and post-translational hydroxylation of proline residues is critical for the stability of the triple helical collagen structure. In this review, we summarise the biology of collagen prolyl 4-hydroxylases and collagen prolyl 3-hydroxylases, the ...
P. Rappu   +3 more
semanticscholar   +1 more source

Fungal Degradation of Extractives Plays an Important Role in the Brown Rot Decay of Scots Pine Heartwood

open access: yesFrontiers in Plant Science, 2022
Scots pine heartwood is known to have resistance to wood decay due to the presence of extractives, namely stilbenes and resin acids. However, previous studies have indicated that these extractives are degradable by wood decaying fungi.
Tiina Belt   +3 more
doaj   +1 more source

The effect of hydroxyl on dye-sensitized solar cells assembled with TiO2 nanorods [PDF]

open access: yesChinese Physics B, 2018, 2017
TiO2 nanorods have been prepared on ITO substrates by dc reactive magnetron sputtering technique. The hydroxyl groups have been introduced on the nanorods surface. The structure and the optical properties of these nanorods have been studied. The dye-sensitized solar cells (DSSCs) have been assembled using these TiO2 nanorods as photoelectrode.
arxiv   +1 more source

Autoxidation Kinetics of Tetrahydrobiopterin—Giving Quinonoid Dihydrobiopterin the Consideration It Deserves

open access: yesMolecules, 2023
In humans, tetrahydrobiopterin (H4Bip) is the cofactor of several essential hydroxylation reactions which dysfunction cause very serious diseases at any age.
Ayoub Boulghobra   +7 more
doaj   +1 more source

Recent Advances in the Hydroxylation of Amino Acids and Its Derivatives

open access: yesFermentation, 2023
Hydroxy amino acids (HAAs) are of unique value in the chemical and pharmaceutical industry with antiviral, antifungal, antibacterial, and anticancer properties.
Bangxu Wang   +6 more
doaj   +1 more source

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