Articles tagged with Protein Folding
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Researchers used terahertz absorption spectroscopy to study the motion of water molecules during protein folding. Water molecules change to a native-type arrangement much faster than the protein, helping establish its correct configuration. This 'designer fluid' plays a crucial role in life.
The American Society for Biochemistry and Molecular Biology (ASBMB) has selected eight scientists for its annual awards competition, recognizing their contributions to science. The award winners include David Davies, John Kuriyan, Sarah Spiegel, Susan Lindquist, Douglas Rees, Phillip Zamore, Sandra Schmid, and Rochelle Schwartz-Bloom.
A team of researchers found that infectious prions have highly flexible loops, absent in non-infectious forms, which differ significantly in their molecular structure. The study suggests that the molecular structure is a key factor in determining a protein's infectiousness.
Researchers at Stanford University have made significant progress in understanding how the TRiC molecule folds proteins, a crucial step for cellular health. The study reveals that the TRiC lid opens like an iris, transferring rotation to the interior of the chaperonin, where protein folding occurs.
Researchers from the University of Pennsylvania School of Medicine have discovered a small molecule that selectively targets and dismantles misfolded protein fibers connected to Alzheimer's disease and prion diseases. This breakthrough has implications for treating neurodegenerative diseases.
Scientists from Brandeis University and the Leibniz Institut have created a 3D image of an Alzheimer's peptide aggregate using electron microscopy. The study reveals the spaghetti-like structure of A-beta peptide aggregates, also known as amyloid fibrils.
Foldit, a computer game, harnesses players' skills to predict protein folding, a crucial step in understanding biological mysteries. Researchers aim to identify 'protein-folding prodigies' who can speed up the process and potentially find cures for diseases like HIV.
Researchers have identified a link between protein misfolding and sleep apnea, finding that cells with healthy proteins may repair themselves, while unhealthy cells self-destruct. A drug called salubrinal shows promise in preventing cell death, but its toxicity limits its potential.
Researchers at Medical College of Wisconsin discover that lymphotactin, a key immune response protein, rapidly shifts between two unrelated structures up to ten times a second. This finding may lead to new insights into misfolded proteins like Alzheimer's and Parkinson's diseases.
Scientists at Rutgers University have made a breakthrough in understanding the mechanism of ricin-induced cell death. By inhibiting a natural defense mechanism called unfolded protein response (UPR), researchers may develop new therapeutic agents to counteract ricin poisonings, which can also be triggered by certain bacteria.
The Dutch team used two types of self-aggregating compounds: surfactants and gelators. They formed aggregates that coexisted without interfering with each other, resulting in complex structures with separate compartments. This orthogonal self-aggregation enables the creation of versatile compartmentalized systems.
Researchers at Stanford University used an optical trap to physically pull and fold a 3D RNA molecule, revealing the step-by-step formation of its tertiary structure. This breakthrough provides unprecedented insight into molecular folding behavior and opens doors for detailed studies of other molecules.
Researchers at Stanford University use an optical trap to physically manipulate RNA molecules, directly observing their three-dimensional folding for the first time. The study reveals the energy and folding behavior of a riboswitch, providing new insights into how biomolecules take shape and function.
Researchers identify key cellular components that carry out protein disposal and shed light on how proteasome inhibitors interfere with this process. The discovery could lead to novel cancer drugs targeting the protein disposal mechanism.
Researchers directly observed how water molecules link with proteins, enabling movement and function. The study challenges conventional wisdom and provides new insights into protein-water interactions.
A new study from Rice University and the University of Houston found that proteins pack more tightly in their natural environment, with increased structural content and stability. The research suggests that protein structure is affected by crowding, even when proteins are in their folded state.
A new technology developed at Yale allows researchers to detect and identify protein interactions within living cells without disrupting them. The method uses small molecule probes that bind to specific amino acid tags, enabling the visualization of protein conformations at high resolution.
Researchers at HHMI used a new computational method to predict protein structure with remarkable accuracy. The method, called Rosetta@home, uses distributed computing and targeted rebuilding to overcome challenges in predicting protein structures.
Researchers compiled global census of protein architectures to plot evolution of Archaea, Bacteria, and Eukarya. The study found evidence that archaeal microbes emerged first as an evolutionarily distinguishable group, losing a fold in the process.
Researchers have developed a novel strategy to tackle aggressive leukemia by combining targeted therapies that degrade the mutated protein receptor and induce natural cell death. The approach uses histone deacetylase and heat shock protein 90 inhibitors to reduce the function of remaining proteins and kill leukemic cells.
The algorithm introduces a new method for predicting RNA pseudoknots using heuristic modeling with mapping and sequential folding. It identifies information about flexibility and suggests that many biological RNA molecules are optimized by natural selection to fold correctly.
Researchers reveal driving force behind protein folding involving water interactions and hydrophobic areas of peptides. This insight builds on previous theories, allowing for the determination of a peptide's structure from its amino acid sequence.
Researchers discovered 10 mutations in the insulin gene causing permanent neonatal diabetes, a rare form of diabetes affecting young children. Early detection and treatment targeting ER stress might preserve or restore insulin production.
Researchers have discovered a second prion protein called 'Shadoo' that coexists with the well-known PrP protein, potentially shedding light on brain function in mad cow disease. The study, published in the EMBO Journal, reveals an unexpected alteration in prion infections where Shadoo disappears as PrP accumulates.
A new model of early evolution directly connects population fitness to protein properties, resolving a key molecular evolution mystery. The study finds that survival depends on the stability of the least stable proteins, leading to an uneven distribution of fold and gene family sizes.
Researchers at Arizona State University have evolved new proteins in a fraction of the time it took nature, providing new lessons on how to optimize proteins. The team used 'synthetic evolution' to improve protein stability and binding efficiency, discovering that subtle amino acid changes can significantly enhance function.
Researchers created a global family tree of metabolic protein architecture using phylogenetic analysis techniques. The study found that many metabolic protein folds are quite ancient, with some common in all species analyzed, while others are more recent.
Scientists at the University of Wisconsin-Madison have developed a powerful analytical tool capable of measuring molecular structures quickly and accurately, capturing intermediate steps of protein folding and revealing clues to type II diabetes. The technique uses two-dimensional infrared spectroscopy and has potential applications in...
Researchers at UCSB are developing a new approach to determine the structure and composition of the Abeta 42 peptide, which is responsible for Alzheimer's disease. They hope to find non-toxic drugs that can prevent further damage by identifying early markers of the disease.
Researchers have constructed a protein out of amino acids not found in natural proteins, discovering they can form a complex, stable structure resembling a natural protein. This finding could help scientists design effective drugs that won't be degraded by enzymes or targeted by the immune system.
Researchers at Yale University have created a protein-like molecule using beta-amino acids, which could have been the natural building blocks of life. The discovery shows that peptides assembled from these non-natural building blocks can fold into structures similar to natural proteins.
A new technique for collecting and identifying intrinsically unstructured proteins (IUPs) has been developed at St. Jude Children's Research Hospital. The study confirmed that most IUPs perform vital roles in daily cell activities, while also being linked to diseases like cancer.
Cornell researchers have extended a top-down approach to analyze larger proteins containing over 2,000 amino acids, providing more efficient identification and revealing protein modifications. The new technique rivals the commonly used bottom-up approach, offering a complete picture of each protein and its modifications.
A study by molecular biologists at Rice University and Baylor College of Medicine suggests that the most stable parts of a protein are also the parts that fold first. The research combined advanced computational modeling with cutting-edge experiments to investigate protein folding.,
Researchers found that muscle cells degenerate when BAG3 is absent, highlighting its importance in maintaining mature skeletal muscle. This discovery may lead to prevention of muscle atrophy associated with diseases like muscular dystrophy and myofibril myopathy.
Sandia researchers found that rough hydrophobic surfaces exhibit longer-range attractive forces, which may help explain protein folding and the self-cleaning 'Lotus effect'. By inserting rough surfaces into experiments, they slowed down the reaction to measure the attraction and observe its origin, a cavitation bridge between the subme...
The Human Proteome Folding project aims to predict the structures of human proteins using idle computer cycles from millions of users. The NYU researchers will focus on cancer biomarkers and host-parasite interactions, refining predictions with more accurate methods.
Researchers at Rockefeller University discovered that calnexin plays a crucial role in forming the ?IIb?3 receptor complex. The study highlights the importance of calnexin in protein folding and degradation, which may lead to new strategies for treating common diseases.
Researchers Paolo De Los Rios and Pierre Goloubinoff identified a simple mechanism for molecular chaperones to facilitate protein folding and translocation, resolving a long-standing controversy. Their 'Entropic Pulling' theory combines thermodynamic principles with the laws of physics to explain Hsp70's activity.
A recent study in Nature explores the role of the protein CHIP in cell response to stress. The research found that when proteins are misfolded during stress, a complex process is triggered to remove them.
Researchers from UW-Madison reveal that protein stability under severe confinement is a delicate balance between energy and entropy. This finding has significant implications for numerous applications, including laundry detergent engineering where enzymes must withstand high temperatures.
Paul Rothemund's 'scaffolded DNA origami' technique allows for 10-fold more complex shapes, including snowflakes and a map of the Americas, with minimal design expertise required. This approach breaks traditional rules for nanoscale fabrication with DNA, paving the way for potential applications in electronics and self-assembled devices.
Researchers at Duke University have shown that hydrogen bonds are crucial for protein folding and are highly conserved across different proteins. Their study found that deleting hydrogen bonds from proteins led to destabilization of the structure, supporting the importance of these bonds in protein folding.
Researchers found that polyglutamine proteins can destabilize the cell's system by interfering with other proteins having difficulty folding, leading to massive consequences. The study suggests a common mechanism may underlie various neurodegenerative diseases, including Huntington's and ALS.
Researchers have identified a genetic mutation in the calnexin gene that can lead to degenerative blindness, providing new insights into retinal degeneration. The study's findings may one day enable doctors to deliver tailored treatments to patients with specific calnexin mutations.
The researchers determined the pre-fusion structure of the F protein using X-ray diffraction, providing a complete picture of how paramyxovirus F protein works to infect cells. This discovery has significant implications for developing improved protein-based vaccines and designing novel anti-viral agents.
Researchers used FRET and ALEX techniques to measure protein distances, shedding light on protein folding dynamics. The study aims to understand how proteins fold and unfold, holding key to Alzheimer's disease prevention and treatment.
Scientists at Stanford University have developed a new microscope that allows them to track the real-time motion of a single protein down to its individual atoms. The device uses infrared light to trap and control forces on a functional protein, enabling researchers to monitor its every move in real time.
Computer simulations reveal that heat conduction is surprisingly high between liquid interfaces, challenging conventional wisdom on thermal conductivity. This finding has significant implications for fields like cancer treatment and computer chip manufacturing.
Small single-domain proteins, often referred to as 'two-state folders', fold into their three-dimensional structures by crossing only a single barrier. A new interpretation of mutational data suggests that this process involves a fully formed helix in the transition state.
A team of researchers from Rice University successfully combined computer modeling and experimental results in folding studies for a large, multi-domain protein using free-energy theory. The method worked remarkably well, allowing scientists to predict the folding route of proteins with unprecedented accuracy.
Researchers have discovered that phospholipids, a crucial component of cell membranes, directly influence the folding of membrane proteins. The absence of phosphatidylethanolamine (PE) led to misfolding and reduced protein activity in E. coli bacteria.
Researchers control RNA structure by attaching DNA strands, allowing precise folding and manipulation of RNAs. The technique also enables reversible or irreversible changes to molecular shapes, offering programmability and potential applications in biological and non-biological systems.
Research reveals that chromatin structure depends on salt environment, with irregular zig-zag structures forming at high salt concentrations. The study helps understand the mechanism of gene expression and silencing by analyzing a 12-nucleosome array under varying salt conditions.
Researchers at Purdue University found that viruses T4 and HK97 share similar protein folds in their outer shells, suggesting a common ancestor. The findings, published in the Proceedings of the National Academy of Sciences, provide further evidence for the evolutionary conservation of viral capsid structures.
Researchers at Stanford University created a simple and inexpensive sensor to determine protein conformation changes using gold nanoparticles. The new test turned out to be useful in detecting conformational changes in proteins, which could help identify disease-related proteins like antibodies.
Researchers at Rice University discovered that eight conserved amino acids in sandwich-like proteins are essential for stabilizing the final structure, while also directing the process of protein folding. This finding provides new insight into the interplay between protein evolution, structure, and folding.
A team of researchers from Howard Hughes Medical Institute and the University of Washington designed a novel protein with atomic-level accuracy using computer-aided design. The breakthrough allows for the exploration of previously unseen regions of the protein universe, opening up new possibilities for studying protein-folding energetics.
The IRE1 protein plays a crucial role in regulating new protein synthesis and immune cell development. Researchers have found that IRE1 is essential for the development of B lymphocytes, which produce antibodies to fight infections. The study suggests that IRE1 could be a target for new drugs to treat autoimmune diseases such as lupus.
Researchers at UC Santa Cruz have identified a highly conserved RNA structure, known as s2m RNA, in the SARS virus. This unique feature appears to be capable of binding to proteins involved in regulating protein synthesis in cells, leading scientists to hypothesize that it may hijack the host cell's machinery for viral use.