Articles tagged with Protein Folding
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.
The UCSB team has developed RNA grids with finite size and various patterns using atomic force microscopy, visualizing beautiful nano-grids and jigsaw puzzle-like structures. The researchers aim to attain total control of matter arrangement at a molecular level for applications in nanotechnology and medical testing.
A study by St. Jude, Loyola and Kyoto University discovered that XBP1 coordinates the processes of building and equipping new ER to increase the cell's capacity for folding and shipping proteins. The gene triggers the production of phosphatidylcholine, a major building block of the ER membranes.
Researchers developed a new technique to predict which proteins are prone to misfold and at what point the folding process breaks down. This could help identify causes of amyloid-related diseases and provide insights into more prevalent conditions like cancer and heart disease.
GM1 gangliosidosis causes brain cells to self-destruct due to excessive accumulation of fatty molecules in lysosomes and disrupted protein folding. The St. Jude team found that the endoplasmic reticulum is triggered by GM1 accumulation, leading to a cell's emergency response and eventual death.
Researchers have characterised the structure and function of Dr Adhesins, a family of proteins responsible for chronic diarrhoeal and urinary tract infections. The discovery provides new insights into how these proteins cause multiple diseases by targeting a common receptor on host cell membranes.
A Stanford researcher has devised a method to identify potential drug compounds using a network of over 150,000 home computers and innovative algorithms. The method accurately predicts how well molecules will bind to a given protein, which is crucial in drug development.
Researchers at Imperial College London have visualized the structure of the Thermus thermophilus chaperonin complex, a crucial molecule for protein folding. The complex's unique cavity accommodates large proteins and is driven by cellular energy source ATP.
The event honored Dr. Steven Almo, Dr. Sunney I. Chan, Dr. Ronald W. Davis, Dr. Pehr A. B. Harbury, and Dr. Robert J. Lefkowitz for their outstanding contributions to biochemical and molecular biological research. Dr. William L. Smith also received the ASBMB-Avanti Award in Lipids.
Researchers have discovered a key principle in protein folding that may help understand neurodegenerative diseases. By studying the formation of raindrops, scientists have developed a new theory that can analyze protein folding in a clearer light, offering a potential step toward understanding and treating these diseases.
Researchers at McGill University have identified a central enzyme that can sense subtle changes in protein folding, enabling the removal of misfolded proteins from cells. This discovery may lead to innovative prevention and treatment strategies for neurodegenerative diseases such as Alzheimer's and Parkinson's.
Researchers discovered a genetic mutation that causes retinitis pigmentosa by interfering with cell development in the retina's capillaries. Understanding this mechanism could lead to new treatments for the disease.
Researchers at U.Va. Health System devise method to extract membrane proteins by using chemicals that allow them to be reversibly folded and refolded. This allows for structural and functional studies of the proteins using crystallography or nuclear magnetic resonance imaging.
Researchers establish that different strains of prions can be accounted for by misfolded conformations of the same protein. The study provides insights into how amyloid proteins form and propagate, potentially guiding future studies of strain properties in mammalian prions.
Researchers at Scripps Research have created a single, clonable strand of DNA that folds into an octahedron with potential applications in biomedical science, electronics, and computing. The structure can be amplified and replicated using standard molecular biology tools.
The study reveals N-WASP activity in unexpected cellular compartments, including ruffles on the cell membrane and the nucleus. The team's new technique allows for visualization of protein activation and its integration with cellular signaling processes.
A new technique developed by UCSD researcher Virgil Woods employs DXMS to identify unstructured regions in proteins that interfere with crystallization. Removing these regions through 'molecular surgery' enables proteins to crystallize well, overcoming a major obstacle in structural genomics.
A Fox Chase Cancer Center researcher has developed a new model for studying prions, which are misfolded proteins responsible for diseases such as BSE and Alzheimer's. The study aims to unravel the molecular basis of prion formation, which is crucial for developing treatments.
Scientists successfully designed and built an artificial protein using a novel computational approach, opening up new possibilities for medicine and industrial applications. The achievement represents a significant breakthrough in understanding protein folding and design.
Princeton University professor Hecht invents a technique to make protein molecules from scratch with various shapes and compositions. The method involves designing amino acid sequences that fold like natural proteins, potentially leading to the creation of custom-designed proteins for new drugs and industrial processes.
A new method has been developed to study protein folding, allowing scientists to visualize the process at a single molecule level. The technique uses fluorescent dyes and FRET to measure the efficiency of energy transfer between amino acids, providing valuable insights into protein structure and function.
Researchers have made a breakthrough in understanding how proteins fold by capturing single proteins in action. The study reveals that protein molecules vary in the routes they take to form the same folded shape and create numerous intermediate shapes along the way.
Researchers have developed the first mathematical theory for RNA's possible states, showing that high temperatures allow it to fold into many shapes, while low temperatures cause it to collapse. This discovery has implications for understanding protein folding and the role of RNA in early life.
A team led by Prof. Lucio Frydman has found a way to perform multidimensional NMR with a single scan, significantly speeding up molecular studies and enabling the observation of rapid changes in molecules like protein folding. The new method uses a 'slicing' approach, simultaneously performing measurements on multiple thin slices of a ...
Researchers created a 3D map of protein structures, grouping them into four distinct classes based on their folds. The map reveals the evolutionary history of proteins and holds promise for understanding cellular functions and designing more effective pharmaceutical drugs.
Scientists have created a 3D map of the protein universe, organizing over 500 common motifs and revealing clusters that resemble cigars. This map helps visualize the relationships among all proteins in nature, shedding light on evolutionary changes and potential applications in biomedical research.
Researchers have discovered that chromatin folds at a much higher level than previously thought, leading to surprisingly large enzyme complexes. This finding has significant implications for understanding gene expression and regulation.
Researchers have developed a new all-optical-atomic clock that can keep time with greater precision than existing atomic clocks, by five orders of magnitude. The clock uses non-linear optical fibers to generate optical-frequency combs and determine frequencies by counting the number of teeth in the comb.
Scientists have discovered an unusual protein structure, known as a 'knot', which defies traditional understanding of protein folding. The newly found knot may stabilize amino acid subunits in the protein, shedding light on its mysterious function and potential applications in disease diagnosis and drug development.
Researchers discovered that the Tryptophan cage protein, composed of 20 amino acids, folds into its three-dimensional shape at an unprecedented rate. The protein achieves this in just four-millionths of a second, beating any other protein by about four times.
A new theory explains how prion diseases get started and kill neurons by showing that small amounts of misfolded PrP in the cytosol can cause cell death. The research also reveals a mechanism for the conversion of normal PrP to its toxic form, which can then spread and aggregate.
The new 800 MHz magnet will enable researchers to study larger and more complex biological systems, including protein folding and complex formation. This advancement is expected to significantly improve understanding of normal biological function and regulation, as well as the development of diseases and drug response.
A team of scientists discovered that self-organized spin clusters emerge from competing interactions in geometrically frustrated magnets, shedding light on natural clustering processes. This finding suggests the existence of higher-order organizing principles in nature.
Researchers at UC Santa Barbara study spider dragline silk's mechanical properties, revealing its elastic and strong nature. The protein unfolds into a modular structure with sacrificial bonds that reform under load, making it a promising material for bulletproof vests, armor, and tethers.
Researchers found that Hsp90 helps proteins fold properly by acting as a buffer for subtle genetic mutations. Lowering its function releases hidden genetic changes, which can lead to valuable new traits in plants and animals.
Researchers develop algorithm to straighten arcs in a plane without parts bumping into each other. The breakthrough applies to robotics, antennas on satellites, and protein chains, offering insights for engineers and biologists.
Researchers at TSRI report a novel synergistic folding mechanism in two transcriptional proteins, CBP and p160, which become active when brought together. This discovery sheds light on the biological functions of intrinsically unstructured proteins and their role in cancer and other diseases.
Researchers have designed an 'Energy Landscape Paving' method that circumvents the problems of the annealing algorithm, enabling fast and automatic solution-finding. This breakthrough could lead to better understanding of proteins' 3D nature and their functions, with potential applications in pharmaceuticals and materials development.
Researchers at UMass challenged a 60-year-old theory on polymer crystallization, finding that lengthy polymers never achieve total crystallinity due to reaching equilibrium. This breakthrough may lead to better control of material flexibility and shed light on the protein-folding problem.
The partnership aims to explore the impact of protein folding on diseases using IBM's Blue Gene research project and ORNL's supercomputing power. This effort will scale computer performance to petaflops, enabling breakthroughs in biology, climate science, and nanotechnology.
Distributed computing is revolutionizing the way scientists solve complex computational problems, enabling breakthroughs in astronomy and biology. The Stanford-led project Folding@home has taken off, with over 10,000 volunteers contributing their home computers to protein folding research.
Researchers observe highly nonexponential folding times in yeast phosphoglycerate kinase and ubiquitin mutant proteins. Downhill folding theory suggests a protein encounters temporary structures en route to its native state.
Researchers created a computational model to capture the process of one protein interfering with another's folding. This reveals the mechanisms behind 'protein adultery', where amino acids from different proteins link, causing diseases like Alzheimer's and mad cow syndrome.
Protein folding research is undergoing explosive growth, revealing secrets of spontaneous self-assembly process, according to an editorial by Jay Winkler and Harry Gray. The study focuses on chemical kinetics and includes real-time observations, advancing efforts to design new drugs and decode genetic information.
Researchers found that the GroEL oligomeric structure is essential for biologically significant chaperonin function. The study showed that enclosure of an unfolded protein in the cage provides a mechanism to prevent protein aggregation during folding, particularly for aggregation-sensitive proteins.
Researchers design all-carbon backbone that spontaneously folds into compact helical structure without hydrogen bonds. The resulting molecule has a tubular cavity with potential applications in selective chemistry and catalysis.
Researchers at the University of Illinois have developed a fast measurement technique that sheds light on the early stages of protein folding. The initial steps of helix formation occur within several hundred nanoseconds, and the entire collapse to a compact structure appears nearly complete after just a few microseconds.
Research reveals that protein folding defects in the LDL receptor contribute to familial hypercholesterolemia by affecting calcium binding. This finding offers new hope for developing targeted therapies to enable proper protein folding and lower blood cholesterol levels.