Results 71 to 80 of about 1,212 (266)

Tau Aggregate Imaging and Transcriptomics of Alzheimer's Disease Brain at Different Stages of Disease

open access: yesAdvanced Science, EarlyView.
The protein aggregates and gene expression in the middle temporal gyrus (MTG) and somatosensory cortex (SOM) of the postmortem brains of 13 Alzheimer's disease patients were studied in detail, revealing that small hyperphosphorylated tau aggregates increase with Braak stage driven by microglial inflammation.
Elizabeth A. English   +9 more
wiley   +1 more source

Druggable proteins of Alistipes reveal promising antimicrobial targets against chronic intestinal inflammation

open access: yesFrontiers in Pharmacology
IntroductionThe genus Alistipes consists of anaerobic, Gram-negative bacteria with 13 species that colonize the entire gastrointestinal tract and are a serious health concern.
Saman Sohail   +13 more
doaj   +1 more source

Anion-induced Folding of Staphylococcal Nuclease: Characterization of Multiple Equilibrium Partially Folded Intermediates

open access: yes, 1998
The refolding of acid-unfolded staphylococcal nuclease (SNase) induced by anions was characterized, and revealed the existence of three different partially folded intermediates (A states).
Karnoup, Anton S.   +5 more
core   +1 more source

A Monte Carlo Simulation of a Protein (CoVE) In a Matrix of Random Barriers [PDF]

open access: yes, 2021
Monte Carlo simulations are performed to study structure and dynamics of a protein CoVE in random media generated by a random distribution of barriers at concentration c with a coarse-grained model in its native (low temperature) and denatured (high ...
Pandey, R. B.
core  

Probing the Energy Landscape of α‐Synuclein Amyloid Fibril Formation by Systematic K‐to‐Q Mutagenesis

open access: yesAdvanced Science, EarlyView.
We use lysine‐to‐glutamine mutations to study the effect of electrostatics on the kinetics and thermodynamics of alpha‐synuclein amyloid fibril formation. We find that mutational effects map on their structural context within fibrils and identify residues that modulate the energy landscape of alpha‐synuclein self‐assembly. Our work outlines a scalable,
Antonin Kunka   +10 more
wiley   +1 more source

An IscS Persulfide Donates the Sulfur for Ribosomal Protein uL16 Thioamidation

open access: yesAngewandte Chemie, EarlyView.
YcaO‐catalyzed thioamidation of the ribosomal subunit protein uL16 is widespread in Pseudomonadota bacteria. We identify the iron–sulfur cluster cysteine desulfurase IscS as the sulfur donor via an IscS persulfide and observe direct IscS–uL16 interactions.
Yanqing Xue   +2 more
wiley   +2 more sources

Dynamic Prestress in a Globular Protein

open access: yesPLoS Computational Biology, 2012
A protein at equilibrium is commonly thought of as a fully relaxed structure, with the intra-molecular interactions showing fluctuations around their energy minimum. In contrast, here we find direct evidence for a protein as a molecular tensegrity structure, comprising a balance of tensed and compressed interactions, a concept that has been put forward
Scott A. Edwards   +2 more
openaire   +6 more sources

Seeing the Chemistry of Biomolecular Condensates: In Situ Mapping of Composition and Water Content

open access: yesAdvanced Science, EarlyView.
Raman hyperspectral imaging combined with spectral phasor analysis enables a label‐free quantification of proteins, polymers and water density within individual biomolecular condensates. By transforming complex vibrational fingerprints into intuitive compositional maps, the approach reveals the high water content and structural heterogeneity of ...
E. Sabri   +3 more
wiley   +1 more source

Structural Basis of Lymphangiogenic Receptor VEGFR‐3 Activation Mediated by Distinctive Clustering of the Ligand–Receptor Complex

open access: yesAdvanced Science, EarlyView.
VEGF‐C and its receptor VEGFR‐3 are critical for lymphangiogenesis. Cryo‐EM structures of the VEGFR‐3/VEGF‐C ectodomain complex reveal a canonical 2:2 ligand–receptor hetero‐tetramer that further assembles into higher‐order clusters beyond simple receptor dimerization.
Ryeongeun Cho   +6 more
wiley   +1 more source

Metal–Phenolic Complexation Governs Soil Mineral Crystallinity to Enhance Crop Growth

open access: yesAdvanced Science, EarlyView.
A coordination‐driven, coprecipitation approach is presented to obtain polyphenolic‐incorporated minerals with tunable crystallinity, offering insights into how plants may influence soil mineral structures. Soil minerals can incorporate polyphenolic secondary metabolites and enhance plant nutrition by facilitating the formation of amorphous metal ...
Jong‐Rok Jeon   +10 more
wiley   +1 more source

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