Results 51 to 60 of about 12,825 (196)

Asymmetric Cu─N─Ru Bridgedsite Nanozyme‐Loaded Injectable Thermogel Boosts Cuproptosis‐Like Death for Multidrug‐Resistant Urinary Tract Infections

open access: yesAdvanced Science, EarlyView.
To address multidrug‐resistant urinary tract infections (MDR‐UTIs), we developed Cu‐ZIF8‐Ru nanozyme featuring an asymmetric Cu─N─Ru catalytic site. This unique structure enhances multienzyme‐mimetic activity, eradicating resistant bacteria by inducing a cuproptosis‐like death pathway through intracellular Cu2+ accumulation and energy depletion.
Guanlin Li   +9 more
wiley   +1 more source

Microglial Membranes Wrapped Ultrasmall Medium‐Entropy Ru Single‐Atom Nanozyme: Enhanced Catalysis for Accelerating Inflammation/Redox Microenvironment Regulation in Intracerebral Hemorrhage

open access: yesAdvanced Science, EarlyView.
PtRhIr/Ru SAN@M nanozymes cross the blood–brain barrier and selectively accumulate in hemorrhagic brain regions. By mimicking multiple enzyme activities, they attenuate oxidative stress, modulate microglial polarization toward an anti‐inflammatory phenotype, inhibit ferroptosis, and promote neuronal repair.
Jiebo Li   +17 more
wiley   +1 more source

Unique Organization of Extracellular Amylases into Amylosomes in the Resistant Starch-Utilizing Human Colonic Firmicutes Bacterium Ruminococcus bromii [PDF]

open access: yes, 2015
ACKNOWLEDGMENTS We acknowledge support from BBSRC grant no. BB/L009951/1, from the Scottish government Food, Land and People program, and from the Society for Applied Microbiology. E.A.B. is supported by a grant (no.
Bayer, Edward A.   +11 more
core   +4 more sources

Biocatalytic Regioselective C‐Formylation of Resorcinol Derivatives

open access: yesAngewandte Chemie, Volume 138, Issue 10, 2 March 2026.
An acyltransferase from Chromobacterium sphagni (CsATase) was identified that catalyzes the regioselective formylation of resorcinol substrates. The formylation of substituted resorcinol derivatives yielded mono‐formylated products with up to 99% conversion and up to 74% isolated yield.
Lilla Gal   +6 more
wiley   +2 more sources

Attachment of the RNA degradosome to the bacterial inner cytoplasmic membrane prevents wasteful degradation of rRNA in ribosome assembly intermediates.

open access: yesPLoS Biology, 2023
RNA processing and degradation shape the transcriptome by generating stable molecules that are necessary for translation (rRNA and tRNA) and by facilitating the turnover of mRNA, which is necessary for the posttranscriptional control of gene expression ...
Lydia Hadjeras   +10 more
doaj   +1 more source

Multienzyme complexes of eukaryotic aminoacyl-tRNA synthetases

open access: yesBioscience Reports, 1983
The high-molecular-mass aminoacyl-tRNA synthetase complexes in higher eukaryotes are discrete non-artifactual multienzyme complexes of similar composition which can be purified from different tissues of different species by different techniques. These high-Mr complexes are composed of synthetases in simple stoichiometric ratios.
C V, Dang, C V, Dang
openaire   +2 more sources

Nanozymes for Liver Disease Therapy: Advances in Catalytic Activity, Targeting Strategies, and Clinical Translation

open access: yesAdvanced Science, EarlyView.
Nanozymes, as enzyme‐mimicking nanomaterials, exhibit unique catalytic properties for the treatment of liver diseases. By regulating redox homeostasis, modulating immune responses, and enabling targeted delivery, nanozymes overcome the limitations of natural enzymes.
Xiandi Meng   +6 more
wiley   +1 more source

Defect‐engineered iron single‐site catalysts with tailored atomic coordination for enhanced mild photothermal therapy via triad modulation of apoptosis and ferroptosis

open access: yesBMEMat, EarlyView.
A defect‐engineered triad catalyst (DMOF‐SNP‐siRNA) has been developed to enhance mild photothermal therapy for cancer treatment by addressing the limitations of heat shock protein overexpression and suboptimal therapeutic outcomes. This synergy induces potent apoptotic and ferroptotic responses, significantly enhancing the photothermal and catalytic ...
Fanghua Zhang   +9 more
wiley   +1 more source

Sulfite: Cytochrome \u3cem\u3ec\u3c/em\u3e Oxidoreductase from \u3cem\u3eThiobacillus novellus\u3c/em\u3e [PDF]

open access: yes, 2000
Direct oxidation of sulfite to sulfate occurs in various photo- and chemotrophic sulfur oxidizing microorganisms as the final step in the oxidation of reduced sulfur compounds and is catalyzed by sulfite:cytochrome c oxidoreductase (EC1.8.2.1).
Bennett, Brian   +6 more
core   +1 more source

Complexity of the Ruminococcus flavefaciens FD-1 cellulosome reflects an expansion of family-related protein-protein interactions [PDF]

open access: yes, 2017
This work was supported in part by the European Union, Area NMP.2013.1.1–2: Self-assembly of naturally occurring nanosystems: CellulosomePlus Project number: 604530, and by the EU Seventh Framework Programme (FP7 2007–2013) under the WallTraC project ...
Alves, Victor D   +17 more
core   +1 more source

Home - About - Disclaimer - Privacy