Results 131 to 140 of about 1,312,330 (378)

Disulfide Bond Requirements for Active Wnt Ligands*

open access: yesJournal of Biological Chemistry, 2014
Background: Wnt proteins are rich in cysteines, but their functional significance has not been systematically examined. Results: Mutagenesis of cysteines in Wnt3a uncovers their requirements for Wnt secretion and/or receptor binding.
Bryan T. MacDonald   +6 more
semanticscholar   +1 more source

Covalent Adaptable Networks with Associative Siloxane Exchange Enabled by Amide‐Based Internal Catalysis: Designing for Reprocessability and Extrudability by Increasing the Cross‐Link Density

open access: yesAdvanced Functional Materials, EarlyView.
Internally catalyzed siloxane dynamic chemistry is demonstrated resulting from amides covalently linked through alkyl chains to siloxanes. The alkyl length in the siloxane‐containing monomer tunes the network cross‐link density. Siloxane exchange dynamics are faster with increasing cross‐link density, because associative exchange is second order in ...
Nathan S. Purwanto   +5 more
wiley   +1 more source

EXPRESSION OF ENDOPLASMIC RETICULUM OXIDOREDUCTASES (EROS) AND THEIR ROLE IN THE GI TRACT [PDF]

open access: yes, 2012
It has been shown that some ER redox enzymes are differentially expressed in stomach and oesophagus tissue. The tissues of the gastrointestinal system, which are subject to external changes of environment during the process of digestion, represent a ...
WATSON, GRAEME
core  

Structural diversity in the type IV pili of multidrug-resistant Acinetobacter [PDF]

open access: yes, 2016
Acinetobacter baumannii is a Gram-negative coccobacillus found primarily in hospital settings that has recently emerged as a source of hospital-acquired infections. A.
Feldman, Mario F   +10 more
core   +3 more sources

Self‐Assembled Gallium Sulfide (GaS) Heterostructures Enabling Efficient Water Splitting and Selective Ammonia Sensing

open access: yesAdvanced Functional Materials, EarlyView.
Gallium sulfide (GaS) forms self‐assembled heterostructures with its native oxide, exhibiting high performance in water splitting and ultrasensitive and selective ammonia detection. Surface defects and controlled oxidation enhance catalytic activity and sensing response.
Danil W. Boukhvalov   +13 more
wiley   +1 more source

Oxidant Sensing by Reversible Disulfide Bond Formation*

open access: yesJournal of Biological Chemistry, 2013
Maintenance of the cellular redox balance is crucial for cell survival. An increase in reactive oxygen, nitrogen, or chlorine species can lead to oxidative stress conditions, potentially damaging DNA, lipids, and proteins.
Claudia M. Cremers, U. Jakob
semanticscholar   +1 more source

Salt‐Compact Albumin as a New Pure Protein‐based Biomaterials: From Design to In Vivo Studies

open access: yesAdvanced Healthcare Materials, Volume 14, Issue 7, March 14, 2025.
A new class of materials built entirely of native albumin protein is designed using a simple protocol based on salt‐assisted compaction, breaking with current crosslinking strategies. This green process leads, surprisingly, to water‐insoluble handable materials with high preservation of their native protein structures and Young's modulus close to that ...
Eya Aloui   +19 more
wiley   +1 more source

3.5Å cryoEM structure of hepatitis B virus core assembled from full-length core protein. [PDF]

open access: yes, 2013
The capsid shell of infectious hepatitis B virus (HBV) is composed of 240 copies of a single protein called HBV core antigen (HBc). An atomic model of a core assembled from truncated HBc was determined previously by X-ray crystallography.
Jih, Jonathan   +4 more
core  

VEGFR2 functions as an H2S-targeting receptor protein kinase with its novel Cys1045-Cys1024 disulfide bond serving as a specific molecular switch for hydrogen sulfide actions in vascular endothelial cells.

open access: yesAntioxidants and Redox Signaling, 2013
AIMS The potential receptor for hydrogen sulfide (H2S) remains unknown. RESULTS H2S could directly activate vascular endothelial growth factor receptor 2 (VEGFR2) and that a small interfering RNA (siRNA)-mediated knockdown of VEGFR2 inhibited H2S ...
Bei-bei Tao   +11 more
semanticscholar   +1 more source

Recent Applications of Mesoporous Silica Nanoparticles in Gene Therapy

open access: yesAdvanced Healthcare Materials, EarlyView.
The review summarizes the synthesis of mesoporous silica nanoparticles (MSNs) with modifiable surface properties, functionalization strategies, mechanism of therapeutic payload release, and current applications in gene therapy, focusing on their capabilities in the targeted delivery of therapeutic nucleic acids, CRISPR‐Cas systems, and other genetic ...
Tamanna Binte Huq   +4 more
wiley   +1 more source

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