Articles tagged with Protein Folding
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Scientists have discovered a way to revive mixed folded proteins by applying an electrostatic interaction between folded or denatured proteins and alumina nanoparticles. This breakthrough could simplify and reduce the production costs of drug proteins for Alzheimer's and Parkinson's treatment.
Researchers from Oliver Daumke's group have uncovered the role of protein Mic60 in forming intricate folds in mitochondrial membranes. The discovery sheds light on how defects in membrane structure contribute to diseases like cancer and neurological conditions.
Researchers from the Bristol BioDesign Institute created a miniprotein with a stripped-down structure to investigate molecular forces that assemble and stabilize protein structures. They discovered subtle forces beyond hydrophobic interactions, which could lead to new drug targets.
Researchers studied 15 thioredoxin proteins, including extinct sequences, to understand how they unfold at different temperatures. They found that proteins with similar structure but greater ability to tolerate heat unfold more slowly, making them useful for industrial processes.
Researchers at TUM have developed a method to construct custom DNA-protein hybrid structures using genetically encoded proteins and DNA. This approach allows for the creation of complex shapes and spatial arrangements that can be used to investigate fundamental processes in cell biology and biotechnology.
Researchers have developed a mathematical foundation to explain the role of small molecules in promoting proper protein folding. This understanding has important implications for developing future therapies based on pharmacological chaperones to treat misfolding diseases.
Biophysicists at JILA measured protein folding with unprecedented detail, identifying 14 intermediate states in bacteriorhodopsin. The discovery reveals previously unknown dynamics, shedding light on the complex behavior of membrane proteins.
Protein misfolding may have kickstarted chemical evolution, enabling the creation of complex systems and potentially leading to the emergence of life. The study designed multi-phase dynamic chemical networks and self-propagating peptide assemblies with remarkable functions.
Researchers discovered PERK protein's role in coordinating cell communication between the endoplasmic reticulum and plasma membrane. This finding opens up promising therapeutic avenues for diseases such as Alzheimer's, cancer, and diabetes.
HSP90 plays a protective role on mutant proteins, buffering detrimental effects of mutations it carries. Environmental changes can also provoke major effects in cells expressing HSP90-buffered mutants.
New research by University of Bristol physicists shows that protein molecules can be understood using virtual knots, a branch of knot theory previously considered abstract. This approach captures the essential ambiguity of where protein curve ends are, providing a more detailed understanding of their three-dimensional structure.
Scientists accurately predict protein volume changes upon unfolding, resolving a long-standing paradox. The new method, developed by Rensselaer Polytechnic Institute researchers, reveals that unfolded proteins gain and lose volume in intricate ways.
Blocking IRE1 with a small molecule prevents progression of atherosclerosis in mice, according to UC Santa Barbara cell biologist Diego Acosta-Alvear. Sustained UPR activation has been implicated in various diseases, and this research aims to understand how diseased cells adapt stress response networks to survive.
The discovery by University of Konstanz researchers reveals two regions within Ssb that mediate direct contact with the ribosome, supporting its function. The findings suggest a unique feature of Ssb that enables it to position itself optimally at the ribosome.
Scientists used cutting-edge imaging and computational tools to decipher the assembly process of ribosomes, revealing multiple routes for assembly and parallel pathways. This discovery has significant implications for understanding diseases and developing safer medicines.
Scientists have discovered that water exhibits two distinct states at a temperature range of 40-60 degrees Celsius, which affects its physical properties and behavior. This finding could lead to breakthroughs in understanding protein folding and disease mechanisms related to Alzheimer's and CJD.
Researchers developed a way to integrate multiple big data sets from biology to understand cellular processes, discovering new regularities and biological consistencies. The study found pause sites dictate protein structure and folding, providing insights into cancer biology.
Researchers transform protein data into musical sounds, called sonifications, to reveal insights into their structures and functions. By analyzing these melodies, scientists can identify anomalies and gain a better understanding of protein behavior.
Researchers have discovered that SLC6A14 is overexpressed in pancreatic tumors and cancerous cells, transporting amino acids for cellular metabolism. Blocking SLC6A14 with alpha-methyltryptophan starves pancreatic cancer cells, reducing growth and proliferation
A Stanford University School of Medicine study suggests that prion proteins can help yeast survive hard times and pass advantageous traits down to their offspring. The researchers found that protein-based inheritance is more widespread than previously believed and could play a role in evolution.
Researchers discovered a newly discovered stress response pathway that relies on fat molecules to mediate cellular health, reducing the risk of neurodegenerative diseases. The study found that certain types of fat may protect against brain disease by preventing protein aggregates.
Researchers have discovered how the Doa10 ligase complex forms a ubiquitin chain to mark faulty proteins for degradation. This process is crucial for maintaining cellular homeostasis and preventing diseases like Alzheimer's and Parkinson's. The study sheds light on the importance of protein quality control in cells.
A team of researchers discovered that chaperones have two classes, each identifying distinct types of hydrophobic amino acid sequences. These sequences can form hazardous clumps in the cell if not eliminated rapidly. The study sheds light on molecular quality control and has implications for biotechnological protein production.
Researchers at Duke University used single-molecule force-spectroscopy to study Protein S, a large protein found in nature. They discovered a previously unknown stable conformation made possible by the interaction between two domains, which may help explain why some proteins are more stable than others.
Researchers studied how epigenetics regulate vital functions in bacteria, simple eukaryotes, and complex organisms like humans. The study reveals that epigenetic mechanisms play a crucial role in regulating development, gene expression, and disease susceptibility.
Researchers have determined the structure and function of an enzyme called Rumi, which adds a glucose molecule to several signaling proteins. This modification plays a crucial role in turning genes on and off inside cells, and alterations to Rumi have been linked to certain cancers.
Researchers from RIKEN successfully attach a biologically active molecule to a titanium surface, inspired by the adhesive properties of mussels. The hybrid protein showed strong binding capabilities to the metal, even when washed with water-based solutions.
Iowa State researchers discovered copper-induced misfolding of prion proteins, leading to inflammation and damage in brain tissue from a mouse model. The study's findings have major implications for understanding the role of metals in protein misfolding diseases, including Alzheimer's and Parkinson's.
Scientists have made a groundbreaking discovery that water molecules play a crucial role in controlling protein motion. The study reveals that proteins rely on water to fold and function correctly, with water molecules modulating protein fluctuations at ultrafast time scales.
Researchers at the University of Würzburg have developed a new fluorescence probe to visualize the motions of Hsp90, an essential chaperone that assists numerous proteins. The technique reveals synchronized structural changes within the protein, shedding light on its healing powers and potential connection to diseases.
Researchers at Aarhus University have developed an RNA aptamer that prevents misfolding of a specific serpin mutant without inhibiting its anti-proteolytic function. This breakthrough has implications for diseases caused by serpinopathies, such as liver cirrhosis and lung emphysema.
A new study reveals that an enzyme called NMNAT2 helps protect neurons from protein clumps, which cause degenerative brain diseases. Higher levels of NMNAT2 were found in people with greater resistance to cognitive decline.
Researchers developed tools that empower distributed groups of workers to perform complicated cognitive tasks with greater speed and accuracy. The Knowledge Accelerator and Alloy systems combine human intelligence and machine learning to synthesize online information, identifying patterns and themes among documents.
Researchers at CSU have made a groundbreaking discovery by imaging RNA translation in real time, shedding light on the fundamental cellular process. They observed proteins forming and maturing at a rate of 10 amino acids per second, and found polysomes to be globular rather than elongated.
Researchers at University of Montreal developed programmable DNA thermometers that can measure temperature at the nanoscale. The smallest thermometer is 5 nm-wide and produces an easily detectable signal as a function of temperature.
Researchers developed steric trapping method to analyze membrane proteins' folding, showing promise for treating diseases at early stages. The study's findings could lead to medicinal advances in understanding protein structure and function.
Researchers at Princeton University discovered how a synthetic protein called SynSerB promotes cell growth in serine-depleted E. coli cells. By inducing overexpression of a protein called HisB, SynSerB enables the production of essential amino acid serine, allowing cells to survive.
The plenary talks will illustrate the wide variety of applications for computers in science, including developing potent anti-HIV agents and creating new proteins. The presentations will also discuss recent advances in free energy perturbation theory.
Lisa M. Jones, an assistant professor of chemistry at IUPUI, has received the NSF CAREER Award to study cell membrane proteins in their native environment. The award supports cutting-edge research training for undergraduate students from historically black colleges and universities as well as IUPUI students.
A team of researchers monitored the folding of an RNA hairpin in a living cell and compared the results with those of test tube analyses. They found that the RNA molecule in the living cell exhibited strong fluctuations in stability, similar to the dynamic changes in the cellular environment.
Researchers discovered how nucleophosmin (NPM1) transforms between two forms: a disordered monomer and a folded pentamer, influenced by phosphorylation and partner binding
The EU-funded project aims to lay the groundwork for 3D genomics by standardizing experiments, storing data, and developing protocols. The goal is to move from 1D genomic studies to understanding DNA structure and function in a 3D context.
Scientists have identified a second giant pore in peroxisomes, enabling the transport of folded proteins essential for human life. The discovery sheds light on how these organelles import enzymes and other proteins from the cytoplasm, a process critical for cellular function.
Researchers at St. Jude Children's Research Hospital identified a small molecule that inhibits the function of 'disordered' protein p27, which may aid regeneration of sensory hair cells to combat hearing loss. The discovery raises broader hopes for drug development targeting disordered proteins in various diseases.
Researchers propose that Alzheimer's disease is a collection of diseases stemming from similar molecular mechanisms. They identified a key protein, cyclophilin B, responsible for its manifestation in distinct neurodegenerative disorders. This study aims to develop novel therapies tailored to individual disease subtypes.
Biochemists at Oregon State University have made a fundamental discovery about protein structure that sheds light on how proteins fold and change shape. The findings reveal the first direct views of specific details of one aspect of protein folding in a way that had not been considered possible.
The COMPASS method uses a combination of molecular spectroscopy techniques, predictive protein-folding algorithms, and image recognition software to determine a protein's likely structure. The approach has been successfully applied to 15 proteins and holds promise for studying complex protein structures that have eluded researchers.
Researchers have developed a reliable method to trace viral evolution, supporting the hypothesis that viruses are alive and share a long evolutionary history with cells. The study found that viruses possess unique genetic sequences and protein folds that are unlike anything seen in cells.
Scientists at University of Basel have shown how chaperones stabilize immature bacterial membrane protein FhuA and guide it in the right folding direction, preventing misfolding. This discovery has significant implications for diseases caused by misfolded proteins like Alzheimer's and cystic fibrosis.
The UW optimization algorithm, RDIS, breaks down complex problems into smaller chunks, solving them exponentially faster. In protein design and self-driving car applications, RDIS performs significantly better than existing methods, accurately mapping images into realistic spaces.
Researchers have developed a microscope instrument that can accurately measure the 3D movement of individual molecules over many hours, far beyond current limits. This technology has potential applications in biology, biochemistry, and biophysics, including tracking protein motions and characterizing nanoscale objects.
University of North Carolina researchers provide evidence that amino acids evolved into proteins, and single cells formed plants and animals. The close linkage between the physical properties of amino acids, genetic code, and protein folding is crucial to life's origins.
Researchers used nuclear magnetic resonance spectroscopy and small-angle X-ray scattering to study the effects of high pressure and urea on protein unfolding. They found that while both methods cause proteins to unfold, they do so through different mechanisms, leading to distinct intermediate proteins.
Researchers at Rice University have developed a new theory on chromosome folding, which is crucial for understanding gene regulation and other biological processes. The theory predicts the folding mechanisms and resulting structures of chromosomes using statistical tools and energy landscapes.
Researchers developed a new computational method called AGGRESCAN3D to study protein aggregation in 3D. The algorithm surpasses limitations of previous methods and offers improved precision in predicting protein aggregation properties.
Researchers have identified a critical molecular pathway in blood stem cells that can be manipulated to enhance their regenerative capacity and reduce the signs of aging. By slowing down mitochondrial activity, they found that levels of SIRT7 can help cope with stress caused by misfolded proteins.
Researchers discovered that epigenetic modifications to mRNA act as a structural switch allowing RNA-binding proteins to recognize inaccessible regions. This phenomenon, known as the m6A switch, affects practically all RNA-protein interactions, with widespread implications for gene expression and regulation.
The study reveals how polar substances nearby can change the interaction between nonpolar hydrophobic groups, allowing for controlled adhesion or repulsion in water. This discovery may lead to new designs of molecules with useful functions in water-based applications.
The Protein Society recognizes Chih-Chia Su and Minttu Virkki as the 2015 Best Paper Award winners for their research on Campylobacter jejuni CmeC outer membrane channel and aquaporin 1 folding, respectively. The award honors exemplary work of first authors and supports the next generation of protein scientists.
University of Illinois researchers have developed a specialized microscope to study the movement of unfolded proteins in cells. They found that these proteins slow down and interact with chaperones, which can lead to cell dysfunction and disease. The discovery provides insight into protein-misfolding diseases.