Articles tagged with Enzymatic Reactions
Carbonic anhydrases are essential enzymes regulating the carbon cycle; recent studies focus on naturally occurring products inhibiting CA activity. Various natural product classes, including coumarins, phenols, polyphenols, and terpenes, have demonstrated CA modulator properties.
Researchers at University of Bristol and Newcastle University have discovered a natural Diels-Alder enzyme, AbyU, which catalyzes the powerful chemical reaction. The discovery could lead to the development of new antibiotics and other medical treatments.
New research describes how enzymes 'tune' to work at specific temperatures, with a fundamental physical property - heat capacity - being the key. This discovery could lead to designing better biocatalysts for industrial processes.
Researchers have developed a new technique using DNA nanocages to confine enzymes and substrate molecules, accelerating chemical reactions and shielding them from degradation. This breakthrough has far-reaching applications in industries such as medicine, diagnostics, and materials production.
Plant tyrosinase enzyme, responsible for browning of apples and other fruits, has been structurally elucidated by researchers at the University of Vienna. The discovery reveals new insights into the enzyme's function and opens up potential avenues for controlling browning reactions.
Scientists at the University of Basel create membrane gates made from chemically modified membrane protein OmpF, responding to changes in pH values. The gates open only when exposed to acidic environments, releasing active agents at targeted locations such as diseased tissue.
Researchers developed a new method to detect isatin, a potential stress biomarker, in blood samples using enzymatic reaction and phase extraction. Isatin levels are elevated in patients with stress, Parkinson's disease, and pregnancy.
Scientists develop enzymes that can catalyze brand-new chemical reactions by mimicking natural evolution and optimizing active site amino acids. This breakthrough enables the creation of novel chemicals, such as aziridines, which have potential applications in pharmaceuticals.
Researchers have discovered an enzyme that catalyzes the formation of a natural insecticide, Spinosyn A, at lower temperatures than previously thought. The new mechanism reveals how the enzyme guides the substrate towards the transition state, resulting in a more energetically balanced reaction.
Researchers discovered that enzymes dissipate heat by rapidly accelerating immediately after a reaction, generating a pressure wave called a chemoacoustic wave. This finding explains how proteins cope with the immense heat generated during enzyme reactions without breaking apart.
Scientists have developed a method to observe DNA double strand breaks, a process that lasts microseconds. They also created slow-motion films of the reaction by altering temperature and pH balance.
Researchers revised classical enzymatic theory by incorporating long-lasting protein-water coupled motions into models of functional catalysis. The study revealed a new biological phenomenon where water motions adapt to substrate binding, critical for effective binding.
Researchers at the University of Glasgow discovered that proteins like lysozyme can vibrate at frequencies similar to a few terahertz, allowing for efficient biochemical reactions. This 'ringing' motion enables proteins to morph quickly and bind with other molecules, critical for life's biological functions.
Researchers develop 3-D artificial enzyme cascade using DNA nanotechnology, mimicking a crucial biochemical pathway that could lead to future biomedical and energy applications. The system consists of multiple enzymes attached to a DNA scaffold, with each arm serving as a 'swinging' catalyst, speeding up chemical reactions.
Researchers reconstructed ancient ocean chemistry and found spontaneous occurrence of reaction sequences enabling metabolite formation. These findings suggest that metabolism predates the origin of life and evolved through early ocean conditions.
A reconstructed ancient ocean revealed spontaneous chemical reactions that could have produced crucial organic molecules for life. These findings suggest that primitive cells may have synthesized their own metabolic components without the aid of enzymes, challenging the traditional view on the origin of life.
Researchers at the University of California - Davis have engineered bacteria to produce esters, a key component in scents, flavors, and chemical processes. This breakthrough could lead to a $20 billion industry shift towards renewable sources.
Researchers developed an algorithm to identify functional modules and relationships between metabolites, reactions, and enzymes in biochemical pathways. The tool enables life scientists to target their research efforts on critical groups most likely to improve our ability to understand and control important biological processes.
Researchers have found that metabolic enzymes in the opium poppy play a key role in producing morphine and codeine, leading to potential breakthroughs in pharmaceutical production. The discovery may also enable the production of these compounds in other plants or microorganisms.
Researchers created nanotweezers using DNA to manipulate enzymatic reactions with fine-grained control. The device separates an enzyme and a cofactor on separate arms of the instrument, allowing for external control of inhibition and activation.
Scientists create artificial DNA catalysts that can modify amino acids in proteins, altering their function. This breakthrough could lead to new tools for studying protein modifications and developing practical applications.
Researchers develop bi-functional enzyme to increase alkane output in bacteria and plants, eliminating hydrogen peroxide inhibition. The combo enzyme boosts reaction efficiency by producing oxygen, a key component required for activity.
Scientists review 'metabolite damage-control' to understand how cells repair damaged metabolites and prevent fatal diseases. The field is in its infancy, with many unidentified reactions waiting discovery.
Researchers have created new biocatalysts using the power of protein engineering and evolution, allowing nature's premier oxidation catalyst to drive synthetically useful reactions. This breakthrough enables the production of pharmaceutical drugs and natural products in a more efficient and environmentally friendly manner.
Researchers at Berkeley Lab develop a new technique to create sustainable heterogenized homogeneous nanocatalysts with high reactivity and selectivity. This breakthrough combines the best properties of both heterogeneous and homogeneous catalysts, enabling control over product distribution in industrial chemistry processes.
Scientists have discovered an enzyme in a bacterium that can catalyse an aromatic nitration reaction, potentially reducing the use of corrosive chemicals like nitric acid. The enzyme, TxtE, could be used to create environmentally-benign biocatalysts for industrial production.
Kendall Houk and colleagues have made unprecedented progress in understanding the Diels-Alder reaction, a pivotal mechanism in synthesizing polymers and steroids. Their research reveals that two bonds form simultaneously within five femtoseconds on average.
Researchers have identified a family of enzymes that attach amino acids to hormone molecules, turning them on or off. This discovery sheds light on the rapid response system in plants, allowing them to adjust to environmental stresses and defend against pathogens.
A team from Graz University of Technology has developed a new method for measuring pH in enzyme reactions using luminescent dual-life-time referencing. This method, known as DLR-based pH meter, combines a pH indicator and a reference standard to provide real-time characteristics of enzyme reactions.
Researchers at the University of California, San Diego, have successfully created self-assembling cell membranes using a simple metal catalyst. This breakthrough could be a crucial step in making artificial life forms from scratch and understanding the origins of life on Earth.
Researchers at TUM elucidated the structure of PylB, an enzyme crucial for pyrrolysine biosynthesis. The discovery sheds light on how archaebacteria modify existing systems to create tailored amino acids with unique properties.
Researchers identified carbon as the key atom in nitrogenase, an enzyme that converts atmospheric nitrogen into a usable form for living things. The discovery could lead to a more efficient and environmentally friendly method for manufacturing fertilizer.
Scientists have observed water's retardation of dynamism in biological enzyme substrate compounds, which acts like an 'adhesive' to control metabolic processes. This finding has implications for future drug design and development of medicines.
Los Alamos researchers successfully observed the elusive hydronium ion for the first time using neutrons, revealing its crucial role in enzyme-catalyzed reactions and protein transport. This breakthrough has significant implications for understanding biochemical systems and treating diseases such as acid reflux.
Researchers at Arizona State University have developed a superior method for immobilizing enzymes on surfaces, enabling precise control over their orientation. This technique uses high-affinity peptides to covalently bind enzymes, increasing efficiency and stability.
Researchers at Ohio State University used mass spectrometry to discover that pyrrolysine is produced through a simple series of chemical reactions involving two lysine molecules. The finding provides a more complete understanding of how amino acids are made and offers new insights into the biosynthesis pathway.
Researchers at UCLA have developed a novel method to study molecule reactions by isolating two molecules on a substrate and controlling their reaction with ultraviolet light. This breakthrough in organic chemistry has potential applications in improving the efficiency of solar cells.
Scientists found that extreme temperature variations greatly impact chemical reactions, with some taking over 2 billion years to occur without enzyme assistance. This discovery challenges traditional views on life's origins and may influence future research on artificial catalysts.
Researchers at UCLA have successfully controlled chemical reactions mechanically, enabling precise manipulation of molecular interactions. By applying mechanical stress to enzymes, they can influence specific steps in the reaction process, paving the way for new applications in medicine and beyond.
Warren Piers, a University of Calgary chemist, has developed a faster catalyst for olefin metathesis reactions. This breakthrough enables more efficient production of chemicals, pharmaceuticals, and biofuels while reducing energy costs and waste. The discovery opens up new applications and markets.
Researchers at Michigan State University used a new cooling method to study the reaction of iron and oxygen atoms in enzyme TauD, discovering never seen before steps that overturn conventional thought. This breakthrough has implications for understanding how enzymes function and designing inhibitors to prevent diseases.
A team of researchers from the University of Copenhagen has successfully produced an artificial enzyme that is tailor-made for any application. The new enzyme speeds up oxidizing processes using Hydrogen Peroxide and operates under humane conditions, making it a promising alternative to traditional oxidizers.
A Boston University-led team has identified the structural basis of acetoacetate decarboxylase (AADase), a key enzyme in carbohydrate metabolism. The discovery corrects previous assumptions about enzyme structure and provides new insights into predicting enzyme functions, enabling the development of novel biofuels.
Natural aromatic oils can trigger allergic reactions, according to a study by Lina Hagvall at the University of Gothenburg. The research found that common perfume substances, like geraniol and lavender oil, can become allergens through autoxidation and skin enzyme reactions.
A team of researchers has illuminated the structure of reactive oxygen species in a vital enzyme using a unique light-based probing technique. The study reveals details about flavoproteins involved in biochemical reactions, including oxygen activation, which is essential for energy conversion in animals and plants.
Scientists have discovered a biological transformation that occurs in the absence of an enzyme, taking 2.3 billion years to complete. This finding highlights the importance of enzymes as catalysts in life processes and has implications for drug design and molecular studies.
Brookhaven researchers modified a desaturase enzyme to produce three new products, including two variations of an allylic alcohol and a fatty acid with two double bonds. The discovery expands the potential for engineering designer plant oils as biofuels and raw materials.
Researchers at NIST have detailed fundamental processes involved in extracting sugars from biomass, a crucial step in producing ethanol by fermentation. The study provides theoretical limits of reactions and energy needed to break down cellulose and hemicellulose, helping engineers design more efficient process designs.
The research successfully created designer enzymes for a chemical reaction known as the Kemp elimination, a non-natural chemical transformation in which hydrogen is pulled off a carbon atom. The researchers also designed an active site for the aldol reaction, involving at least six chemical transformations.
A lead-specific DNAzyme uses the 'lock and key' reaction mechanism, but switches to 'induced fit' in the presence of zinc or magnesium. This discovery could lead to faster and more sensitive sensors.
Researchers create nanoreactors with enzymes and plastic membranes to run three different enzymatic reactions simultaneously without interference. The system allows small molecules to pass through while trapping larger ones, enabling precise control over reaction cascades.
Researchers at UC Santa Cruz determine the 3D structure of an RNA enzyme, or ribozyme, that carries out a fundamental reaction required to make new RNA molecules. The discovery provides insight into what may have been the first self-replicating molecule to arise billions of years ago.
Scientists at Berkeley Lab have developed a technique to capture and hold intermediate compounds in water, similar to how enzymes function. This method involves trapping the compounds inside molecular pyramids, allowing for controlled study of their properties and reactions.
Researchers discovered that a switch in just two amino acids can make a difference between functioning at moderate temperatures and adapting to extreme heat. This finding has implications for adjusting crops to climate conditions and improving enzyme efficiency in industrial processes.
Researchers have made significant breakthroughs in understanding the cell respiration mechanism, led by Academy Professor Mårten Wikström. The study reveals the coupling between the proton pump and oxygen reduction, shedding light on how energy is transduced from foodstuffs to cells.
Researchers at UNC Chapel Hill have discovered a new enzyme that can break down chloroacrylate pesticide residue in just 10,000 years, significantly longer than other environmental pollutants. This enzyme is found in bacteria that thrive on the pesticide and has implications for designing more efficient enzymes.
Ribosomes, critical sites of protein synthesis, speed up chemical transformation through entropic origin, not lowering energy barrier like conventional enzymes. This discovery helps scientists understand ribosome function and design inhibitors for protein synthesis.
Researchers have created a microgel that can recover costly enzymes, overcoming significant obstacles in using natural enzymes in laboratory and industrial settings. The microgel enables efficient enzyme recovery, allowing for repeated use in catalyzing commercially important reactions.
Researchers at Carnegie Mellon University have discovered a new Fe-TAML activator that works with oxygen to oxidize organic and inorganic chemicals. This discovery has the potential to extend the use of Fe-TAML activators for environmental remediation and modify industrial processes to make them more efficient.
Researchers have found a biological transformation that occurs at an astonishingly slow rate of 1 trillion years in the absence of an enzyme catalyst. Enzymes can speed up this reaction by millions of times. This discovery provides insight into how natural selection has evolved enzymes to accelerate biochemical processes.