Results 131 to 140 of about 498,738 (286)

Synergistic Tuning of Conformational Dynamics, Electron Tunneling, and Substrate Positioning Enhances Electron Transfer in a P450 Chimera for Calcifediol Biosynthesis

open access: yesAdvanced Science, EarlyView.
A synergistic electron transfer (ET) optimization strategy modulating conformational dynamics, ET pathway, and substrate orientation is proposed for self‐sufficient cytochrome P450s. Guided by this strategy, a P450 variant with improved ET and catalytic efficiency was identified, and the underlying molecular basis was revealed by computational analysis.
Ziqi Liang   +9 more
wiley   +1 more source

Cross‐Platform Biosensing of Immune Receptors Using Peptide‐Functionalized Graphene

open access: yesAdvanced Science, EarlyView.
A peptide‐functionalized graphene biosensor enables sensitive and selective detection of living immune cells. Targeting Formyl‐Peptide Receptor 2 (FPR2), the assay is demonstrated on model cells and primary human neutrophils. The same assay is applied to two complementary platforms: graphene‐enhanced surface plasmon resonance for optical benchmarking ...
Ahmar Hasnain   +5 more
wiley   +1 more source

The growth of paracoccus halodenitrificans in a defined medium [PDF]

open access: yes
A synthetic medium, consisting of inorganic salts and any of a number of carbon sources, supported the aerobic growth of Paracoccus halodenitrificans when supplemented with thiamine.
Hochstein, L. I., Tomlinson, G. A.
core   +1 more source

Selenoprotein H Functions as a PPARα Coactivator to Link Selenium Homeostasis to Hepatic Lipid Metabolism and Protect against Steatohepatitis

open access: yesAdvanced Science, EarlyView.
Our study identifies selenium deficiency as a hallmark of MASH pathogenesis. Dietary selenium supplementation enhances hepatic fatty acid oxidation (FAO) and attenuates MASH progression by activating the PPARα pathway via selenoprotein H (SELENOH). This selenium‐SELENOH‐PPARα nexus redefines the functional scope of selenoproteins, moving from redox ...
Yuwei Zhang   +11 more
wiley   +1 more source

Systems genetics identifies methionine as a high risk factor for Alzheimer's disease

open access: yesFrontiers in Neuroscience
As a dietary strategy, methionine restriction has been reported to promote longevity and regulate metabolic disorders. However, the role and possible regulatory mechanisms underlying methionine in neurodegenerative diseases such as Alzheimer's disease ...
Congmin Wang   +10 more
doaj   +1 more source

Construction of a "mutagenesis cartridge" for poliovirus genome-linked viral protein: Isolation and characterization of viable and nonviable mutants [PDF]

open access: yes, 1988
By following a strategy of genetic analysis of poliovirus, we have constructed a synthetic "mutagenesis cartridge" spanning the genome-linked viral protein coding region and flanking cleavage sites in an infectious cDNA clone of the type 1 (Mahoney ...
Dunn, John J.   +5 more
core  

Response of Broilers to DL-Methionine Hydroxy Analog Free Acid, DL-Methionine, and L-Methionine

open access: yesPoultry Science, 1985
An experiment was designed to compare graded levels of DL-methionine hydroxy analog, free acid, 88% in aqueous solution; 2-hydroxy-4-(methylthio)butanoic acid (HMB), the aqueous solution of the sodium salt of DL-methionine (40%) (DLM), and crystalline L-methionine (LM) as sources of supplemental methionine activity.
openaire   +2 more sources

Microglial GPR35 Ameliorates Epileptogenesis and Neuroinflammation via PDGFA Domain 2 Signaling

open access: yesAdvanced Science, EarlyView.
Activation of microglial G protein–coupled receptor 35 (GPR35) by L‐kynurenic acid (L‐Kyna) initiates a platelet‐derived growth factor A (PDGFA)–dependent phosphoinositide 3‐kinase–protein kinase B (PI3K–AKT) signaling cascade that dampens hippocampal neuroinflammation, thereby restraining epileptogenesis, lowering seizure susceptibility, and ...
Qi Wang   +17 more
wiley   +1 more source

Effects of L-Methionine and DL-Methionine on Growth Performance, Methionine-Metabolizing Enzyme Activities, Feather Traits, and Intestinal Morphology of Medium-Growing, Yellow-Feathered Chickens between 1 and 30 Days of Age

open access: yesAnimals
This experiment investigated the effects of L-Methionine (L-Met) on growth performance, Met-metabolizing enzyme activity, feather traits, and small intestinal morphological characteristics, and compared these with DL-Methionine (DL-Met) for medium ...
Xiajing Lin   +9 more
doaj   +1 more source

Possibilities and limitations of protein supply in organic poultry and pig production [PDF]

open access: yes, 2005
It is one of the general recommendations in animal nutrition that the diet should be formulated according to the specific requirements of animals at the various stages of their development.
Richter, U., Schneider, K., Sundrum, A.
core  

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