Results 161 to 170 of about 106,658 (300)

Experimental Data Confirm Carrier-Cascade Model for Solid-State Conductance across Proteins [PDF]

open access: yesarXiv
The finding that electronic conductance across ultra-thin protein films between metallic electrodes remains nearly constant from room temperature to just a few degrees Kelvin has posed a challenge. We show that a model based on a generalized Landauer formula explains the nearly constant conductance and predicts an Arrhenius-like dependence for low ...
arxiv  

Self‐Assembly of Linear, Natural Antimicrobial Peptides: An Evolutionary Perspective

open access: yesChemPlusChem, Volume 87, Issue 12, December 2022., 2022
Antimicrobial peptides are an ancient defence against a wide range of microbes. Some can self‐assemble into oligomers and amyloid. Similarities with neurodegenerative diseases support a hypothesis that some diseases are due to aberrant activity of a protective neuropeptide.
Verity Baltutis   +2 more
wiley   +1 more source

Convergent Assembly of Homo‐ and Heterotypic Ubiquitin Chains from Functionalized, Expressed Monomers via Thiol‐Ene Chemistry

open access: yesAngewandte Chemie International Edition, EarlyView.
Generating functionalized ubiquitin building blocks via expression in E. coli paves the way to different di‐, tri‐, and tetra‐ubiquitin chains. Light‐induced thiol‐ene click reactions, combined with a masking and protection strategy, are harnessed to establish controlled ubiquitin chain assembly and to allow the semisynthesis of site‐selectively ...
Moritz Urschbach   +6 more
wiley   +1 more source

Impact of Lipid Structural Variations on Bilayer Properties: A Coarse-Grained Molecular Dynamics Study [PDF]

open access: yesarXiv
The supramolecular assembly of lipids into bilayer membranes is essential for cellular structure and function. However, the impact of lipid structural variations such as acyl chain length, degree of unsaturation, and headgroup type on bilayer properties remains incompletely understood.
arxiv  

Photoswitchable, Water‐Soluble Bisazobenzene Cross‐Linkers with Enhanced Properties for Biological Applications

open access: yesChemPhotoChem, Volume 6, Issue 12, December 2022., 2022
Photoswitchable cross‐linkers have the ability to connect two residues on a biomolecule, thereby causing large changes in the structure and function of the target upon irradiation. The design, synthesis and purification of cross‐linkers with large end‐to‐end distances remains challenging, especially for applications in chemical biology.
Jana Volarić   +3 more
wiley   +1 more source

Functional consequences of brain exposure to saturated fatty acids: From energy metabolism and insulin resistance to neuronal damage

open access: yesEndocrinology, Diabetes &Metabolism, Volume 6, Issue 1, January 2023., 2023
Saturated fatty acids induce insulin resistance in neurons. Neuronal metabolism of palmitic acid alters mitochondrial function. Abstract Introduction Saturated fatty acids (FAs) are the main component of high‐fat diets (HFDs), and high consumption has been associated with the development of insulin resistance, endoplasmic reticulum stress and ...
Karina Sánchez‐Alegría   +1 more
wiley   +1 more source

Structural Basis of Sequential Enantioselective Epoxidation by a Flavin‐Dependent Monooxygenase in Lasalocid A Biosynthesis

open access: yesAngewandte Chemie International Edition, Accepted Article.
Polyether polyketides are a structurally diverse group of natural products known for their antimicrobial and antiproliferative activities. Lasalocid A is a canonical natural polyether produced by the soil bacterium Streptomyces lasalocidi. In lasalocid A biosynthesis, a polyene polyketide intermediate is converted to a bisepoxide by the flavin ...
Chu-Young Kim   +12 more
wiley   +1 more source

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