Results 61 to 70 of about 494,571 (318)

PARK(ing) time–How park deficiency affects the biological clock in a Drosophila model of Parkinson's disease

open access: yesFEBS Letters, EarlyView.
Drosophila park mutants serve as a model for Parkinson's disease. We used this strain to investigate the connection between oxidative stress and the circadian clock mechanism. We showed that increased oxidative stress affects the physiology of pacemaker cells, disrupting their daily structural plasticity. Lack of rhythmic signaling from pacemaker cells
Kamila Zientara   +3 more
wiley   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

open access: yesFEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee   +7 more
wiley   +1 more source

Self‐Coiling and Aggregation Behaviors of Organic Fluorescent Probes With Saturated Aliphatic Chains in Polar Fluorinated Arenes

open access: yesAggregate
The self‐coiling behaviors of organic molecules in fluorinated solvents haven't been explored previously. As one particular type of fluorous solvent, polar fluorinated arenes are widely used in both academia and industry.
Zhaohui Meng   +3 more
doaj   +1 more source

Study on sodium storage properties of manganese‐doped sodium vanadium phosphate cathode materials

open access: yesBattery Energy, 2023
Na+ superionic conductor (NASICON)‐structured Na4VMn(PO4)3 (NVMP) possesses stable cycling performance at 2.5–3.8 V by replacing V with lower cost Mn but suffers rapid capacity decay when further widening the voltage to 2.5–4.2 V, owing to a less stable ...
Wei Li   +6 more
doaj   +1 more source

Design and analysis strategies for robust microbiome ageing research

open access: yesFEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik   +5 more
wiley   +1 more source

Chiral macrocycles forming high-affinity host-guest homoternary complexes for chiral discrimination and amplified circularly polarized luminescence

open access: yesNature Communications
The development of macrocyclic hosts with high-affinity 1:2 recognition capabilities is crucial for advancing supramolecular chemistry and its applications.
Rong Fu   +11 more
doaj   +1 more source

Design, Synthesis, and Acaricidal Activity of 2,5-Diphenyl-1,3-oxazoline Compounds

open access: yesMolecules
By using a scaffold hopping/ring equivalent and intermediate derivatization strategies, a series of compounds of 2,5-diphenyl-1,3-oxazoline with substituent changes at the 5-phenyl position were prepared, and their acaricidal activity was studied ...
Yuming Chen   +4 more
doaj   +1 more source

Molecular characterization of dissolved organic matter (DOM) in seawater

open access: yes, 2000
Dissolved organic matter (DOM) plays an important role in the global carbon cycle (chapter 1). However, not much is known about the molecular composition and the origin of DOM. The study described in this thesis was conducted to gain more knowledge on
van Heemst, J.D.H.   +5 more
core  

Interactions between metals and soil organic matter in various particle size fractions of soil contaminated with waste water [PDF]

open access: yes, 2009
Only scarce field studies concern the consequences of natural soil organic matter (SOM) and metal interactions on SOM dynamics in soils. We investigated the interactions of four metals (Pb, Zn, Cu and Cd) with the SOM associated to five different size ...
Quenea, Katell   +5 more
core   +1 more source

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

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