Results 101 to 110 of about 1,312,330 (378)

Elucidation of the disulfide folding pathway of hirudin by a topology-based approach [PDF]

open access: yes, 2003
A theoretical model for the folding of proteins containing disulfide bonds is introduced. The model exploits the knowledge of the native state to favour the progressive establishment of native interactions.
De Filippis, V.   +3 more
core   +2 more sources

Disulfide Bond Bridge Insertion Turns Hydrophobic Anticancer Prodrugs into Self-Assembled Nanomedicines

open access: yesNano letters (Print), 2014
It is commonly observed that hydrophobic molecules alone cannot self-assemble into stable nanoparticles, requiring amphiphilic or ionic materials to support nanoparticle stability and function in vivo.
Yongjun Wang   +15 more
semanticscholar   +1 more source

Intraoral Drug Delivery: Bridging the Gap Between Academic Research and Industrial Innovations

open access: yesAdvanced Functional Materials, EarlyView.
Intraoral drug delivery offers a promising route for systemic and localized therapies, yet challenges such as enzymatic degradation, limited permeability, and microbial interactions hinder efficacy. This figure highlights innovative strategies—mucoadhesive materials, enzyme inhibitors, and permeation enhancers—to overcome these barriers.
Soheil Haddadzadegan   +4 more
wiley   +1 more source

Insights into the Role of the Unusual Disulfide Bond in Copper-Zinc Superoxide Dismutase*

open access: yesJournal of Biological Chemistry, 2014
Background: Copper-zinc superoxide dismutase is a rare example of an intracellular protein with a disulfide bond. Results: Disulfide mutant C57S SOD1 has 10% of the enzymatic activity of wild type.
Kevin W. Sea   +12 more
semanticscholar   +1 more source

Integration of Perovskite/Low‐Dimensional Material Heterostructures for Optoelectronics and Artificial Visual Systems

open access: yesAdvanced Functional Materials, EarlyView.
Heterojunctions combining halide perovskites with low‐dimensional materials enhance optoelectronic devices by enabling precise charge control and improving efficiency, stability, and speed. These synergies advance flexible electronics, wearable sensors, and neuromorphic computing, mimicking biological vision for real‐time image analysis and intelligent
Yu‐Jin Du   +11 more
wiley   +1 more source

Distinct roles and actions of protein disulfide isomerase family enzymes in catalysis of nascent-chain disulfide bond formation

open access: yesiScience, 2021
Summary: The mammalian endoplasmic reticulum (ER) harbors more than 20 members of the protein disulfide isomerase (PDI) family that act to maintain proteostasis.
Chihiro Hirayama   +7 more
doaj  

PEGylation of native disulfide bonds in proteins [PDF]

open access: yesNature Protocols, 2006
PEGylation has turned proteins into important new biopharmaceuticals. The fundamental problems with the existing approaches to PEGylation are inefficient conjugation and the formation of heterogeneous mixtures. This is because poly(ethylene glycol) (PEG) is usually conjugated to nucleophilic amine residues. Our PEGylation protocol solves these problems
Ji-Won Choi   +5 more
openaire   +3 more sources

Elucidating the Role of Disulfide Bond on Amyloid Formation and Fibril Reversibility of Somatostatin-14

open access: yesJournal of Biological Chemistry, 2014
Background: Peptide/protein hormones are stored as amyloids within endocrine secretory granules. Results: Disulfide bond cleavage enhances conformational dynamics and aggregation kinetics in somatostatin-14, resulting in amyloid fibrils with increased ...
Anoop Arunagiri   +16 more
semanticscholar   +1 more source

Bacteria‐Derived Extracellular Vesicle as A “Trojan Horse” for Selective M1 Macrophage‐Targeting in A Multi‐Cellular Entanglement Environment

open access: yesAdvanced Functional Materials, EarlyView.
The temporary transition of macrophages from a pro‐inflammatory phenotype of macrophages (M1) to an anti‐inflammatory phenotype of macrophages (M2) is crucial for tissue repair and regeneration processes. Bacterial outer membrane vesicles (OMVs) are utilized as a “trojan horse” for specific M1 macrophage‐targeting and anti‐inflammatory drug delivery ...
Donglin Cai   +9 more
wiley   +1 more source

Synthesis and structural characterization of a mimetic membrane-anchored prion protein [PDF]

open access: yes, 2006
During pathogenesis of transmissible spongiform encephalopathies (TSEs) an abnormal form (PrPSc) of the host encoded prion protein (PrPC) accumulates in insoluble fibrils and plaques. The two forms of PrP appear to have identical covalent structures, but
Andrew C. Gill   +44 more
core   +1 more source

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