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Tracking a protein’s fleeting shape changes

Researchers developed a powerful new technique to generate dynamic structural data of proteins. They applied it to Glt Ph, revealing previously unseen structural states and uncovering the basis of wanderlust kinetics. The approach opens up possibilities to track protein structure in real-time.

SourceWeill Cornell Medicine·JournalNature Structural & Molecular Biology·DateApr 17, 2024

Researchers realize target protein stability analysis by time-resolved ultraviolet photodissociation mass spectrometry

Researchers developed a time-resolved native mass spectrometry strategy to analyze target protein stability and structure unfolding dynamics. The study found that mutations can reduce the non-covalent interactions between protein and cofactor, leading to decreased stability.

SourceDalian Institute of Chemical Physics, Chinese Academy Sciences·JournalJournal of the American Chemical Society·TypeCommentary/editorial·DateApr 17, 2024

Cells putting on a face

Researchers have developed a method to differentiate human pluripotent stem cells into cell populations that form patterns resembling the facial primordium. This allows for the creation of an in vitro model to study early facial development and potential treatments for craniofacial disorders.

SourceKyoto University·JournalNature Communications·TypeExperimental study·DateApr 11, 2024

The genesis of our cellular skeleton, image by image

Researchers at the University of Geneva have successfully visualized and reconstructed the assembly of the human centriole, a critical structure in the cell skeleton. By combining high-resolution microscopy and kinematic reconstruction techniques, they were able to model the first 4D assembly of the centriole, providing new insights in...

SourceUniversité de Genève·JournalCell·DateApr 10, 2024

New insights into cholesterol dynamics shed light on neurodegenerative disease

A study published in PNAS reveals the structure of a protein linked to neurodegenerative disease Niemann-Pick type C, which accumulates cholesterol within cellular compartments. The research sheds light on the complex mechanism of cholesterol distribution and its role in maintaining optimal levels.

SourceAarhus University·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateApr 3, 2024

Filming ultrafast molecular motions in single crystal

Scientists have applied time-resolved serial femtosecond crystallography (TR-SFX) to study molecular motion in real-time with atomic resolution, revealing three pathways of structural change in a porous coordination network sample. This breakthrough unlocks new opportunities for investigating chemical systems and material science.

SourceInstitute for Basic Science·JournalNature Chemistry·TypeExperimental study·DateMar 25, 2024

Beetles living in the dark teach us how to make sustainable colors

Researchers at Singapore University of Technology and Design have discovered how to produce sustainable colors using beetles that live in the dark. By understanding how these beetles' exoskeletons reflect light, scientists can create environmentally friendly materials for various industries. This breakthrough has significant implicatio...

SourceSingapore University of Technology and Design·JournalAdvanced Engineering Materials·DateMar 13, 2024

A simple and robust method to add functional molecules to peptides

Researchers from Tohoku University developed a unique chemical reaction to attach two distinct functional molecules to the N-terminus of peptides with a glycine amino acid, achieving site-selective modification and stable carbon-carbon bonds. The method shows potential for labeling diverse peptides and larger proteins for purification,...

SourceTohoku University·JournalAngewandte Chemie International Edition·DateMar 11, 2024

This protein pic could help develop new cancer treatments

The study reveals that LAG-3 exists as a dimer, with two molecules forming the functional checkpoint protein. An antibody used to demonstrate therapeutic efficacy in animal models blocks activity by binding to the dimer interface. This new understanding may lead to better cancer treatments targeting this protein.

SourceStanford University·JournalProceedings of the National Academy of Sciences·DateMar 11, 2024

Groundbreaking study unveils unique roles of yeast protein complexes in cellular lifespan and environmental response by rationally engineering based on the predicted three-dimensional structures

Researchers discovered that two types of TORC1 complexes in yeast play unique roles in cellular responses to stress and lifespan regulation. The study's findings provide new insights into molecular evolution, cellular signaling pathways, and age-related diseases, offering promising avenues for human health advancements.

SourceNational Institutes of Natural Sciences·JournalJournal of Cell Science·TypeExperimental study·DateFeb 29, 2024

BESSY II: Molecular orbitals determine stability

Researchers at BESSY II used RIXS and DFT simulations to analyze the electronic structures of fumarate, maleate, and succinate dianions. The study found that maleate is potentially less stable than fumarate and succinate due to its delocalized HOMO orbital, which can lead to weaker binding with molecules or ions.

SourceHelmholtz-Zentrum Berlin für Materialien und Energie·JournalPhysical Chemistry Chemical Physics·TypeExperimental study·DateFeb 7, 2024

Elusive cytonemes guide neural development, provide signaling ‘express route’

Researchers at St. Jude Children's Research Hospital have visualized how cytonemes transfer signals across vast distances during neural development, establishing an 'express route' for communication between cells. This discovery provides insights into the complex process of mammalian nervous system development and highlights the crucia...

SourceSt. Jude Children's Research Hospital·JournalCell·TypeObservational study·DateJan 2, 2024

Scientists in Germany develop a new analytical method, which enables improved insight into (mRNA) nanoparticles and similar pharmaceutical and non-pharmaceutical products

Scientists in Germany developed a new analytical method to precisely elucidate the size of particles, structure, and RNA molecules in pharmaceutical products. This information can help evaluate product quality, enabling improved development of new products.

SourceEuropean Molecular Biology Laboratory·JournalScientific Reports·TypeExperimental study·DateDec 19, 2023

A sugar analysis could reveal different types of cancer

Researchers at the University of Gothenburg have developed a way to distinguish different types of structural changes in glycan molecules linked to various cancers. The AI-enhanced method uses mass spectrometry to identify patterns in data sets, providing a precise answer to what will change for a specific disease.

SourceUniversity of Gothenburg·JournalCell Reports Methods·TypeObservational study·DateDec 13, 2023

New research shows how important protein keeps our cell membranes in balance

A study published in Nature Communications sheds light on the critical role of P4-ATPases, particularly ATP8B1-CDC50A, in maintaining lipid asymmetry in cell membranes. The research team used cryo-electron microscopy to determine the structure and function of the human flippase complex, revealing its regulation by phosphoinositides.

SourceAarhus University·JournalNature Communications·TypeExperimental study·DateDec 5, 2023

From infamy to ingenuity

Researchers have uncovered the intricate molecular mechanism used by parasitic phytoplasma bacteria to manipulate plants. The discovery sheds light on a peculiar phenomenon in nature, where plants exhibit 'zombie-like' effects due to bacterial infection.

SourceJohn Innes Centre·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateDec 5, 2023

Researchers propose MOF modular customization strategy for efficient membrane separations

Researchers propose a novel approach to customize metal-organic frameworks (MOFs) for efficient membrane separations. The strategy involves modularizing custom defect-free MOF separation membranes, allowing for rapid production of high-performance membranes.

SourceDalian Institute of Chemical Physics, Chinese Academy Sciences·JournalAngewandte Chemie International Edition·TypeCommentary/editorial·DateNov 13, 2023

Understanding the dynamic behavior of rubber materials

A team of researchers has developed a novel experimental system to simultaneously measure the mechanical properties and internal structure of rubber-like materials. The study found that strain within these materials is non-uniform, depending on the shape and size of composite particles.

SourceWaseda University·JournalMechanical Systems and Signal Processing·TypeImaging analysis·DateNov 9, 2023

Physical theory improves protein folding prediction

Researchers developed a novel physical theory that can accurately predict protein folding, surpassing existing models like AlphaFold 2. The new model, WSME-L, can elucidate folding processes without limitations, enabling a comprehensive understanding of protein structures and behaviors.

SourceUniversity of Tokyo·JournalNature Communications·TypeExperimental study·DateOct 19, 2023

Absorption of light by molecules has applications in microscopy, medicine and data storage

A Brazilian physicist has developed an alternative method that reduces calculation time for simulating light absorption by molecules from two days to a few hours. This allows for high-resolution microscopy and the creation of precise 3D structures for data storage, with potential applications in medicinal treatments.

SourceFundação de Amparo à Pesquisa do Estado de São Paulo·JournalThe Journal of Chemical Physics·DateOct 11, 2023

Study reveals structure of crucial receptor in brain development, function

Scientists at OHSU elucidated the structure of Type A GABA receptors targeted by antidepressants and other pharmaceutical drugs, shedding light on their role in brain function and development. The study reveals dominant assemblies and states of the receptor, paving the way for the development of new compounds with improved efficacy.

SourceOregon Health & Science University·JournalNature·TypeImaging analysis·DateSep 20, 2023

Precisely arranging nanoparticles

A research team at Göttingen University has developed plasmonic molecules from nanoparticles using a novel process that precisely arranges the particles. This breakthrough enables the creation of large quantities of these compounds, which can be used for various functions in nanotechnology.

SourceUniversity of Göttingen·JournalAngewandte Chemie·TypeExperimental study·DateSep 19, 2023

Study explains role of certain types of oxide in structure and development of specialty glass

Researchers found that adding niobium oxide to silicate glass increases bond density and connectivity, enhancing mechanical and thermal stability. This discovery could lead to the development of innovative glass formulations for various applications, including optics, medicine, and data transmission.