Results 101 to 110 of about 7,197,000 (313)

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS 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

Imidazoline‐Proline and Imidazoline‐Prolinate Ligands for Copper‐Catalyzed Asymmetric Exo‐Selective [3 + 2] Cycloaddition of Iminoesters with Nitroalkenes

open access: yesChemistryEurope
Diphenylethylenediamine‐derived imidazoline‐amino acid derivatives are designed as nonphosphine chiral nitrogen ligands for metal‐catalyzed exo‐selective [3 + 2] cycloaddition reaction of iminoesters with nitroalkenes.
Yan Yu   +4 more
doaj   +1 more source

CTPS2 regulates CTP synthetase activity by interacting with CTPS1

open access: yesLife Science Alliance
The human CTP synthetases 1 and 2 associate together and co-localize in large filament–cytoophidium structures. CTPS1 and CTPS2 association results in enzymatic modulation independently of cytoophidia revealing a new regulation mechanism of CTP ...
Norbert Minet   +5 more
doaj   +1 more source

Identifying Activity

open access: yesSIAM Journal on Optimization, 2011
Identification of active constraints in constrained optimization is of interest from both practical and theoretical viewpoints, as it holds the promise of reducing an inequality-constrained problem to an equality-constrained problem, in a neighborhood of a solution. We study this issue in the more general setting of composite nonsmooth minimization, in
Adrian S. Lewis, Stephen J. Wright 0001
openaire   +3 more sources

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS 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

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

open access: yesFEBS 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

Transcriptional reprogramming via signaling domains of CD2, CD28, and 4-1BB

open access: yesiScience
Summary: Costimulatory signals provided to T cells during antigen encounter have a decisive role in the outcome of immune responses. Here, we used chimeric receptors harboring the extracellular domain of mouse inducible T cell costimulator (mICOS) to ...
Annika De Sousa Linhares   +3 more
doaj   +1 more source

On Putting the Active Back into Activism

open access: yesNew Formations, 2010
This paper addresses a paradox: how to engage in affirmative politics, which entails the production of social horizons of hope, while at the same time doing critical theory, which means resisting the present. Drawing on the neo-vitalism of Deleuze, with reference to Nietzsche and Spinoza, the article argues in favour of an affirmative ethics: defined ...
openaire   +3 more sources

Diversity and complexity in neural organoids

open access: yesFEBS 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

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

open access: yesFEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz   +11 more
wiley   +1 more source

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