Articles tagged with Biomolecules
A groundbreaking study identifies a direct energy route between mitochondria and the nucleus, supporting gene regulation, chromatin remodeling, and cell differentiation. The finding challenges traditional assumptions about energy transfer in cells and has significant implications for understanding health and disease.
Researchers have uncovered the structural basis of Argonaute assembly, revealing that chaperone proteins hold it in an open conformation allowing miRNA loading. The study also found that RNA plays a key role in guiding Argonaute folding.
The Acceleration Consortium and Structural Genomics Consortium collaborate to develop new drugs using AI-driven lab capabilities. The partnership aims to speed up the discovery of bioactive molecules, advancing human health and disease understanding.
Researchers identified a promising new strategy for reversing autism-related brain deficits by targeting a specific glycine transporter. The therapy restored NMDA receptor function in mouse models and human brain organoids, improving behavioral abnormalities such as social interaction and repetitive behaviors.
A study led by Raül Andero at the Universitat Autònoma de Barcelona found that the ratio of progesterone to estradiol hormones in saliva can predict memory performance, including fear extinction in both mice and humans. This hormonal balance may help identify optimal times for learning and memory tasks.
Proteins lose their hydration shell when environment becomes more acidic, a process that had remained unanswered for 50 years. Direct observation of individual water molecules reveals clear rules: certain amino acids bind or release water, leading to stable inner core regardless of pH level.
A recent study identified a new type of β-1,2-glucan-binding protein in bacteria, which binds cyclic β-1,2-glucans and has implications for understanding bacterial interactions with these complex molecules. The discovery opens up new avenues for developing biological pesticides to protect crops from pathogens.
Researchers at Institute of Science Tokyo genetically engineer cyanobacteria to produce sulfated polysaccharides, a sustainable route for manufacturing biomaterials. The study demonstrates the feasibility of engineering complex biosynthetic pathways in photosynthetic organisms.
Researchers found that a vitamin D analog reduced fibroblast activation and increased T cell infiltration in pancreatic tumors, improving chemotherapy responses and progression-free survival. Patients with high vitamin D receptor expression also had longer overall survival.
Researchers at the University of Cincinnati's Center for Advanced Structural Biology have visualized the structure of iRhom1 bound to the ADAM17 enzyme, shedding light on its role in regulating cell surface protein targets. This breakthrough discovery may lead to new therapeutic strategies for treating chronic inflammatory diseases.
Researchers at the University of Göttingen have developed a new method to make biomolecules glow in real-time, eliminating unwanted signals in microscopy. This approach ensures only labelled biological molecules emit fluorescence, making experiments clearer and easier to interpret.
Researchers at UW Medicine Institute for Protein Design and Skape Bio used AI methods to create on-demand molecules that can toggle GPCRs. The approach enables precise control of GPCR signaling in cells, offering new insights into bodily functions and potential medicines for diseases.
Complex systems exhibit emergent properties due to water's unique polarity, enabling DNA to store information and proteins to adopt specific structures. This order forms the basis for complex molecules to develop unpredictable properties, driving the evolution of life.
Researchers discovered that strokes cause a chain reaction within the brain, leading to neuronal cell death. They found that blocking collagen production can prevent this damage and even restore motor function in paralyzed monkeys. The new drug KDS12025 reduces hydrogen peroxide levels and prevents the entire process from being triggered.
Neutron scattering reveals a new type of protein motion that depends on the surrounding environment within assemblies. The observed behaviour, known as non-Fickian diffusion, shows that molecular motion can no longer be described by a single uniform rule across the whole system.
Chemokines regulate immune cell infiltration and local immunity in tumors, and targeting their receptor axis has emerged as a promising therapeutic target in cancer immunotherapy. Chemokine-modulating strategies combining with other immunotherapies have demonstrated considerable synergistic potential.
Researchers developed a machine-learning model to predict protease behavior, enabling more precise and effective treatments. The ProSSpeC calculator suggests engineered synthetic proteases that outperform widely used enzymes.
Researchers at UCD have discovered a previously unknown courier system in cells that enables the transfer of coherent biological messages between cells. This breakthrough could lead to improved RNA-, gene- and protein-based therapies by ferrying functional biomolecules directly into previously inaccessible areas within cells.
Researchers at the University of Groningen discovered that protein clustering in cells leads to reduced movement and improved efficiency in amino acid production. This finding has practical implications for designing efficient cell factories and increasing substance production inside cells.
A new clinical trial at the University of Cincinnati is testing a peptide solution to treat prosthetic joint infections after total knee replacement. The trial aims to reduce the need for repeat surgeries and expand the treatment window beyond two weeks.
A multicenter analysis of 920 patients with compensated cirrhosis found that interferon therapy was not associated with a higher risk of serious complications compared to standard treatment. Milder side effects were more common and required closer monitoring.
Researchers have repurposed a bacterial DNA synthesis system to enable DNA to act as an active 'field agent' inside living cells. This allows for the creation of programmable DNA fragments that can regulate gene expression and control protein behavior.
The review highlights LRRK2's diverse cellular functions and pathogenic mechanisms in various diseases, including Parkinson's disease and inflammatory disorders. Therapeutic strategies targeting LRRK2, such as kinase inhibitors and emerging approaches like PROTACs and gene therapy, show promise for correcting cellular imbalances and re...
A new imaging technique, Lipid-CLEM, has revealed the detailed organization of lipids in cellular membranes at the nanoscale. The technique allows for 3D visualization of lipid densities in membrane nanodomains, providing insights into lipid sorting and behavior within complex cellular structures.
Researchers at the University of Pennsylvania developed lipid nanoparticles that modify immune metabolism to strengthen mRNA vaccines and reduce common side effects. The new lipid boosts the metabolism of immune cells, providing energy for the body's defenses while dialing down inflammatory signals.
Engineers at the University of Pennsylvania have developed LIBRIS, an automated microfluidic platform capable of generating lipid nanoparticle formulations at high speed and scale. This enables the creation of large, systematic datasets needed to train predictive AI models, accelerating the design of lipid nanoparticles for mRNA delivery.
Researchers have identified three new proteins, called epitopes, that help the body determine 'safe' foods, aiding in food tolerance and allergy understanding. The epitopes were found in seed proteins from corn, wheat, and soybean, and interact with regulatory T cells to inform tolerance-or-rejection decisions.
A new Cochrane review found that sucrose can effectively reduce pain in newborn babies during painful procedures like venepuncture. The study examined 29 clinical trials involving over 2,700 babies and showed that a small amount of sucrose given before the procedure significantly reduces pain when combined with non-nutritive sucking.
A team of scientists at the University of Sydney has discovered how three naturally occurring antibiotic compounds disrupt the ClpC1–ClpP1P2 complex, a vital protein degradation machine in Mycobacterium tuberculosis. This finding uncovers surprising complexity and provides valuable insight into designing more effective anti-TB treatments.
Researchers show enzymes can actively shift reactions away from equilibrium, controlling directionality and fine metabolic regulation. Enzyme diffusion enables 'memory' of past reaction events, driving system to new steady state.
Researchers have discovered that the Japanese scarab beetle uses mirror-image pheromones to distinguish between potential mates. The discovery could lead to improved monitoring and control methods for this invasive species.
Actin filaments and a fast plant motor protein called Chara corallina myosin XI (Cc XI) were combined to observe spontaneous ring formation. The rings rotated continuously in one direction and remained fixed, even as individual filaments moved within them.
Recent advances in biomolecular archaeology enable museums to convert molecular data into accessible olfactory recreations. The Max Planck Institute research team developed a workflow for translating ancient chemical signatures into visitor-ready fragrances.
Researchers have developed a device that cuts sample consumption by as much as 97% while producing high-quality structural data for X-ray crystallography. This innovation enables the study of rare proteins and accelerates drug discovery, unlocking new insights into disease mechanisms.
RNA droplets promote reduction and oxidation reactions, crucial for life, according to UC Santa Barbara researchers. The findings support the idea that these droplets acted as proto-enzymes, enabling the development of more complicated organic molecules.
A team of researchers from Chiba University discovered the structural evolution of poloxamer mixtures at different temperatures, enabling customized gelation behavior. Their findings support precise design of sustained-release formulations for localized therapies, enhancing drug retention and minimizing side effects.
Researchers have developed a new AI method called Riff-Diff to construct artificial biocatalysts, resulting in enzymes that are significantly faster, more stable and versatile. The technology allows for precise design of protein structures around active centres, making enzyme design more accessible to the wider biotechnology community.
Researchers explore microneedle technology as a novel delivery system for efficient and minimally invasive intradermal drug delivery. The review highlights the design of functional microneedles with specific structures to overcome biological barriers in various tissues, improving therapeutic outcomes.
Researchers deciphered the structure of Tau proteins' fuzzy coat using nuclear magnetic resonance spectroscopy, revealing its dynamic regions and rigid core. The findings provide insight into how Tau proteins form tangles in the brain, which contribute to neurodegenerative diseases like Alzheimer's.
A recent study using Drosophila as a model organism reveals the involvement of linear ubiquitination in T-tubule biogenesis. The findings highlight LUBEL's role in triggering Amph-mediated T-tubule formation, which promotes membrane tubulation and curvature through self-ubiquitination and positive feedback loops.
Researchers develop experimental drugs that encourage mitochondria in cells to work harder and burn more calories. The findings offer a framework for designing safe and effective weight-loss treatments with potential benefits for metabolic health and neurodegenerative diseases.
A novel microfluidics technology has been developed to produce highly uniform DNA condensates using a simple vibration platform. This approach enables precise control over condensation within a single aqueous phase, preserving biomolecular activity.
The NAC protein complex regulates protein synthesis by slowing down the early stages of protein formation to ensure a smooth process. This optimization allows for reduced risk of collision and coordinates subsequent folding and logistics processes.
Researchers from Tokyo University of Science developed an efficient strategy to synthesize PROTACs using a three-step click chemistry method. This approach rapidly assembles functional molecules, enabling the easy introduction of ligand components and probe functionalities.
Scientists at Leibniz-HKI discovered an enzyme called BurK that cleaves the toxic molecule malleicyprol in human pathogenic bacteria. This mechanism regulates toxin levels and renders it harmless to humans, offering a potential therapeutic approach for antibiotic-resistant infections.
Researchers developed a new way to stimulate the immune system to attack tumor cells by blocking an immune checkpoint. They created multifunctional molecules called AbLecs, which combine a lectin with a tumor-targeting antibody, and showed they could boost the immune response to cancer cells.
A study published in Science Signaling has identified the MRAP2 protein as a key player in supporting the function of appetite-regulating proteins MC3R and MC4R. The findings suggest that mutations in this protein may contribute to reduced energy balance and obesity risk.
A new study suggests that sweat can reveal information about a person's health, including hormone levels, medication doses, and early detection of diseases like diabetes and cancer. Wearable sensors using artificial intelligence can detect specific metabolites in sweat, providing personalized health insights.
Researchers achieved hydroxyl groups esterification and lignin dissolution through a two-hour pyridine-benzoyl chloride bath. The resulting fibers became photobleaching and stable under accelerated weathering, with a 15-unit ΔE* swing and 96% plunge in tensile strength.
Researchers at the University of Gothenburg discovered that grey seal milk contains approximately 33% more sugar molecules than breast milk, including unique and powerful compounds against disease-causing bacteria. These findings could lead to improved infant formula and potential applications in human health.
A new broad-spectrum antivenom developed by DTU researchers covers 17 African snake species and provides better protection against tissue damage, with a lower risk of immune reactions. The antivenom has shown impressive results in laboratory studies and could revolutionize the treatment of venomous snakebites in Africa.
Researchers have developed new calcium channels that can be precisely controlled to study cellular signaling. The channels, built using artificial intelligence, were designed to mimic natural calcium channels and demonstrate their potential as tools for biomedical research.
Researchers at Nagoya University have developed a new technology that improves protein production efficiency in E. coli by reducing ribosome stalling. By identifying short translational-enhancing peptides, they created an AI prediction model to accurately predict translation enhancement strength for all 160,000 possible tetrapeptides.
A team of researchers developed a computational method that can design intrinsically disordered proteins with desired properties. The work uses automatic differentiation to optimize protein sequences and leverages molecular dynamics simulations for precision. This breakthrough has the potential to reveal new insights into diseases like...
A new study reveals how pathogenic bacteria construct Eut microcompartments to digest ethanolamine, a nutrient commonly found in the gut. Understanding their assembly offers new targets for antimicrobial therapies.