Results 101 to 110 of about 180,552 (305)

Linking Plant Metabolomics with Fungal Functional Dynamics Reveals a Noncanonical S‐R‐C Adaptive Trajectory

Advanced Science, EarlyView.
Using field‐based holo‐omics, we demonstrate that developmental shifts in sorghum leaf metabolomes drive a noncanonical fungal succession from stress tolerators (S) through ruderals (R) to competitors (C). Antifungal metabolites in young leaves select for S strategists with expanded genomes, transient maltose pulses during flowering favor fast‐growing ...
Peilin Chen, John W. Taylor, Cheng Gao
wiley   +1 more source

Enzymatic Basis for the Oxidative Branch of Aromatic Amino Acid Fermentation Leading to p‐cresol Formation

Advanced Science, EarlyView.
In anaerobic bacteria, tyrosine serves as an electron donor in the oxidative Stickland fermentation branch, generating p‐hydroxyphenylacetate, ATP and reduced ferredoxin for decarboxylation into p‐cresol. ABSTRACT The phenolic metabolite p‐cresol is a byproduct of tyrosine fermentation by certain strictly anaerobic bacteria, including the human gut ...
Li Jiang, Yifeng Wei, Xumei Liu, Dazhi Liu, Zhenyu Liu, Yang Tong, Jinyu Yin, Ankanahalli N. Nanjaraj Urs, Meining Xing, Mark A. Harrison, Chuyuan Zhang, Sheng Yang, Yunzi Luo, Ee Lui Ang, Huimin Zhao, Yan Zhang   +15 more
wiley   +1 more source

Molecular Simulation of the Separation of Isoleucine Enantiomers by β-Cyclodextrin

Molecules, 2019
Molecular mechanics and dynamics simulations were carried out to study the capacity of isoleucine enantiomers to form inclusion complexes with β–cyclodextrin, and to be discriminated by this chiral compound, in vacuo and with different ...
Elena Alvira
doaj   +1 more source

Prognostic Value of Psoas Major Muscle Volume in Assessing Sarcopenia in Elderly Patients With Rectal Cancer

Annals of Gastroenterological Surgery, EarlyView.
This study investigates the prognostic utility of a novel volumetric indicator—psoas volume index (PVI)—for assessing sarcopenia in elderly rectal cancer patients. Sarcopenia classified by our proposed PVI cut‐off values was associated with poor nutritional and inflammatory status, and patients with low PVI showed significantly worse long‐term outcomes.
Gen Tsujio, Shoichi Manabe, Akio Shiomi, Yusuke Tanaka, Shunsuke Kasai, Tadahiro Kojima, Takahiro Igaki, Yukihiro Mori, Akifumi Notsu   +8 more
wiley   +1 more source

The Effect of Dexamethasone-Mediated Atrophy on Mitochondrial Function and BCAA Metabolism During Insulin Resistance in C2C12 Myotubes

Metabolites
Background: Muscle loss during sarcopenia and atrophy is also commonly associated with age-related insulin resistance. Interestingly, branched-chain amino acids (BCAA) which are known for stimulating muscle protein synthesis are commonly elevated during ...
Kayla J. Ragland, Kipton B. Travis, Emmalie R. Spry, Toheed Zaman, Pamela M. Lundin, Roger A. Vaughan   +5 more
doaj   +1 more source

Real-Time Optical Detection of Isoleucine in Living Cells through a Genetically-Encoded Nanosensor

Sensors, 2019
Isoleucine is one of the branched chain amino acids that plays a major role in the energy metabolism of human beings and animals. However, detailed investigation of specific receptors for isoleucine has not been carried out because of the non ...
Shruti Singh, Maheshwar Prasad Sharma, Abdulaziz A. Alqarawi, Abeer Hashem, Elsayed Fathi Abd_Allah, Altaf Ahmad   +5 more
doaj   +1 more source

First-principles molecular structure search with a genetic algorithm

, 2015
The identification of low-energy conformers for a given molecule is a fundamental problem in computational chemistry and cheminformatics. We assess here a conformer search that employs a genetic algorithm for sampling the low-energy segment of the ...
Baldauf, Carsten, Blum, Volker, Supady, Adriana   +2 more
core   +2 more sources

Isoleucine-to-valine substitutions support cellular physiology during isoleucine deprivation

Nucleic Acids Research
Abstract Aminoacyl-tRNA synthetases (ARSs) couple tRNAs with their corresponding amino acids. While ARSs can bind structurally similar amino acids, extreme specificity is ensured by subsequent editing activity. Yet, we found that upon isoleucine (I) restriction, healthy fibroblasts consistently incorporated valine (V) into proteins at ...
Gautam Kok, Imre F Schene, Eveline F Ilcken, Paula Sobrevals Alcaraz, Marisa I Mendes, Desiree E C Smith, Gajja Salomons, Sawsan Shehata, Judith J M Jans, Reza Maroofian, Tim A Hoek, Robert M van Es, Holger Rehmann, Edward E S Nieuwenhuis, Harmjan R Vos, Sabine A Fuchs   +15 more
openaire   +4 more sources

Relative Exchangeable Copper Confirms Wilson Disease and Supports Reclassification of the ATP7B p.Met665Ile Variant With Conflicting Pathogenicity Evidence

American Journal of Medical Genetics Part A, EarlyView.
ABSTRACT Wilson disease (WD) is an autosomal recessive disorder of copper metabolism caused by ATP7B mutations. Diagnosis is usually straightforward in symptomatic patients, but can be challenging in children and adolescents with mild liver disease, borderline urinary copper excretion, or inconclusive genetic findings.
Emanuele Nicastro, Caterina Zuccoli, Roberto Marozzi, Antonino Barletta, Lisa Licini, Paola Tebaldi, Valeria Casotti, Mariangela Stinco, Lidia Pezzani, Maria Iascone, Lorenzo D'Antiga   +10 more
wiley   +1 more source

Incorporation of unsaturated isoleucine analogues into proteins in vivo [PDF]

, 2002
The translational activity of various unsaturated analogs of L-isoleucine was evaluated using an Escherichia coli strain auxotrophic for isoleucine. It was observed that the alkene [2-amino-3-methyl-4-pentenoic acid (2)] and alkyne [2-amino-3-rnethyl-4 ...
Barbot, Francis, Michon, Thierry, Tirrell, David   +2 more
core