Results 71 to 80 of about 11,784,011 (316)
Structural insights into an engineered feruloyl esterase with improved MHET degrading properties
FEBS Letters, EarlyView.A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa +5 more
wiley +1 more source
Structural snapshots of the mechanism of ATP-dependent DNA damage recognition by UvrA
Nature CommunicationsNucleotide excision repair is a DNA repair pathway which detects and fixes various DNA lesions that distort the structure of DNA. In bacteria, the pathway starts with the UvrA protein which has two adenosine triphosphatase modules and forms dimers.
Shivlee Nirwal +5 more
doaj +1 more source
A Molecular–Structure Hypothesis [PDF]
International Journal of Molecular Sciences, 2010 The self-similar symmetry that occurs between atomic nuclei, biological growth structures, the solar system, globular clusters and spiral galaxies suggests that a similar pattern should characterize atomic and molecular structures. This possibility is explored in terms of the current molecular structure-hypothesis and its extension into four ...
openaire +3 more sources
, 2010 The molecular geometry, vibrational frequencies, gauge-including atomic orbital (GIAO) H-1 and C-13 chemical shift values of 3,5-bis-(4-methylbenzoyl)-2,6-bis(4-methylphenyl)-4H-pyran-4-one in the ground state have been calculated by using the Hartree ...
Avcı, Davut +2 more
core +1 more source
Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system
FEBS Letters, EarlyView.Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley +1 more source
Ion selectivity and rotor coupling of the Vibrio flagellar sodium-driven stator unit
Nature Communications, 2023 Bacteria swim using a flagellar motor that is powered by stator units. Vibrio spp. are highly motile bacteria responsible for various human diseases, the polar flagella of which are exclusively driven by sodium-dependent stator units (PomAB).
Haidai Hu +10 more
doaj +1 more source
FEBS Letters, EarlyView.Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura +2 more
wiley +1 more source
Observation of a shape resonance of the positronium negative ion
Nature Communications, 2016 The Positronium negative ion is formed by two electrons bound to a positron, and experimental investigations of its states and energy levels are difficult due to its short lifetime.
Koji Michishio +8 more
doaj +1 more source
Diversity and complexity in neural organoids
FEBS Letters, EarlyView.Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley +1 more source
Nature Communications, 2019 Holliday junctions (HJs) are four-way DNA structures that occur in DNA repair by homologous recombination which are removed by nucleases such as RuvC. Here the authors provide structural and biochemical details on the steps required for the completion of
Karolina Maria Górecka +5 more
doaj +1 more source