Researchers have identified a specific location where DNA begins opening inside living yeast cells, marking the start of DNA replication. The study revealed a molecular gate that helps prepare DNA for copying and coordinates multiple stages within a compact area of the genome.
A novel AI model called BINND has been developed to predict which DNA molecules bind to each other. The model achieved an accuracy of 83.5% in predicting DNA pairs that would bind, surpassing the state-of-the-art model by at least 10%. This improvement has significant utility for biomedical diagnostic tools and DNA computing applications.
The study reveals the detailed structure of an RNA–DNA hybrid G-quadruplex, showing unique arrangement and unusual structural state. The findings suggest that RDQs may participate in regulating interactions between RNA and DNA in cells, protecting telomeres and maintaining genome stability.
A KAIST research team developed a foundational technology for 'temperature-based DNA synthesis,' synthesizing desired DNA using only temperature. The team also demonstrated a 'DNA temperature black box' that records temperature changes during shipping without electricity.
Researchers developed a silver nanoparticle-based technology to precisely cut and join DNA at targeted sites, increasing assembly efficiency by 2-5 times. The process uses chemical reactions instead of restriction enzymes, resulting in higher DNA recovery rates and improved joining efficiencies.
A new computational tool predicts and avoids unwanted interactions in DNA origami, improving reliability for biomedical and technological applications. The tool optimizes DNA sequence choice to minimize off-target interactions, leading to more successful folding of nano-scale devices.
Researchers found a unique protein called YAF9B that helps plants protect their stem cells from DNA damage. This discovery sheds light on how plants coordinate DNA repair processes, which could improve future crops by guiding more precise genome editing.
Researchers at KAIST discovered that a DNA repair enzyme uses a one-dimensional diffusion strategy to search for damaged sites. The team found that an intrinsically disordered region plays a key role in the DNA search process and stabilizes binding between APE1 and DNA with magnesium ions.
MDNA, an open-source software suite, enables accurate models of DNA structures and simulations. It facilitates visualization and analysis of DNA-protein interactions, improving understanding of DNA dynamics in complex biological systems.
The study provides new insight into how cells recognize and remove harmful DNA bases using human SMUG1 enzyme. The enzyme removes uracil and related damaged bases from DNA to prevent permanent mutations.
Research reveals Neandertal ancestry affects immune system to multiple DNA viruses, including Epstein-Barr virus and human herpesvirus 7. Archaic DNA variants were disproportionately associated with higher viral loads in modern humans.
Researchers at Tohoku University discovered a hidden mechanism in DNA damage caused by singlet oxygen generating abasic sites. This process is common and represents one of the main forms of DNA damage, alongside guanine-related types.
Researchers at Baylor College of Medicine developed new methods to study DNA management in bacteria, revealing that DNA shape and flexibility play critical roles in gyrase activity. The study identifies specific DNA sequences that guide gyrase binding and interaction with the enzyme.
Researchers identified a CRISPR variant that distinguishes tumor DNA from healthy DNA and selectively cuts the former. This method relies on methyl groups attached to DNA, which are altered in cancer cells.
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.
Researchers discovered that DNA polymerases can generate highly sophisticated DNA sequences from scratch, with some exceeding 85,000 bases. By controlling the reaction conditions and temperature, scientists can steer the composition of the sequences produced.
Researchers discovered that DNA twisting plays a significant role in CRISPR's mistakes, compromising safety and efficacy. The study used tiny DNA circles called minicircles to capture interactions between CRISPR and DNA, providing insights to help eradicate errors altogether.
Scientists create functional machines using DNA, adapting macro-scale robotics principles for nanoscale performance. Control strategies use biochemical methods and physical stimuli to direct movement.
Researchers at NYU's Department of Chemistry have discovered a way to assemble complex DNA structures without sticky ends, using shape alone to guide assembly. This breakthrough enables the creation of varied 3D structures made entirely out of DNA, with potential applications in optical, electronic, and biomedical technologies.
Researchers at Tohoku University have developed a new technology that uses thioguanosine to achieve highly efficient and controllable interstrand crosslinking of DNA. This breakthrough enables reversible DNA modification with high stability and reversibility, opening opportunities for next-generation bionanomaterials.
Scientists at Umeå University found that i-DNA forms in living cells and acts as a regulatory bottleneck linked to cancer. The protein PCBP1 controls its resolution, which can block replication and increase DNA damage risk if not done properly. This discovery opens new avenues for drug development by targeting i-DNA handling.
A Goethe University-led study reveals how mutations in the SPRTN enzyme cause chronic inflammation and premature ageing. The research team found that damaged DNA in the cell nucleus leaks into the cytoplasm, activating defense mechanisms and leading to chronic inflammation.
Unrepaired DNA-protein crosslinks cause premature aging and embryonic lethality in mice by triggering an innate immune response. Targeting innate immune signaling may offer a therapeutic strategy for human disorders like Ruijs-Aalfs progeria syndrome.
A protein called Replication Factor C has been found to remain bound to a DNA sliding clamp even after loading it onto DNA, facilitating the copying process. This discovery challenges decades of textbook knowledge in basic biology and could inform research into cancer and neurological disorders.
Researchers discover that CDT1 overexpression suppresses DNA replication and induces DNA damage, potentially leading to genetic mutations and cancer. The study provides molecular insights into the role of CDT1 in cancer development.
Researchers develop a high-precision method to detect replication initiation sites in the human genome, discovering that cells can initiate DNA replication from almost anywhere. They also identify a protein complex called TRESLIN-MTBP that governs initiation zones and replication timing.
A new type of DNA damage, glutathionylated DNA adducts, accumulates at high levels in mitochondrial DNA, affecting energy production and stress response. The discovery sheds light on how cells sense and respond to stress, with potential implications for diseases like cancer and diabetes.
A study reveals that nucleoside supplementation speed up DNA replication by a specific balancing act involving T (thymidine), which counteracts an inhibitory molecule, dUTP. Adding T increases the correct molecule, dTTP, preventing dUTP from interfering with DNA synthesis.
Researchers at CNIO have created a 'human repairome', a catalogue of 20,000 DNA 'scars' that reveal how genes affect DNA repair. This information can help determine the best treatment for each cancer type and overcome resistance to therapy.
Researchers have discovered that DNA twists around itself in a structure called plectonemes, not knots, when passing through nanopores. This twisting motion generates a distinctive fingerprint in the electrical signal, offering new insights into DNA organisation and genomic integrity.
A team of scientists has identified a novel DNA damage repair pathway in human cells, revealing that proteins present in the nuclear membrane directly interact with damaged DNA. This breakthrough could lead to the development of new cancer treatments that target this pathway and overcome treatment resistance.
Researchers at The University of Osaka have developed a novel technology to unzip DNA's double helix structure, allowing for efficient and accurate genetic testing. The device uses a nano-sized platinum coil and precise heating to minimize DNA damage and read information from the DNA molecule.
Researchers developed a chemical probe that binds to damaged mitochondrial DNA, blocking enzymatic processes that lead to its degradation. This approach lessens mtDNA loss, preserving energy production in vulnerable tissues. The new molecule successfully reduced inflammation and maintained functional DNA despite chemical tagging.
A study by a trans-European research team reveals how DNA condensation during the cell cycle is regulated by a unique molecular switch. When cell division begins, the key enzyme CDK1 phosphorylates microcephalin and M18BP1, allowing condensin II to pack the DNA into sausage-shaped chromosomes.
Researchers have successfully edited harmful mitochondrial DNA mutations in liver and skin cells using a genetic tool called a base editor. The study, published in PLOS Biology, offers promising results for treating mitochondrial diseases and aging-related conditions.
Researchers at the University of Florida have developed a method to analyze airborne DNA, tracking species and pathogens in the air. This technology has vast potential applications for studying wildlife, human health, and environmental monitoring.
Researchers have revealed the structural mechanisms of a major DNA repair pathway in human cells, showing how RAD51 filament promotes strand exchange and facilitates DNA repair. The study provides fundamental insights into biochemical reactions of eukaryotic homologous recombination.
Researchers discovered that Chd1 induces two conformations of exit DNA and inhibits its activity when the DNA is unwrapped. The mechanism involves a positively charged motif in Chd1, known as the exit-DNA-binding loop (EDBL), which binds to unwrapped exit DNA, acting as a molecular brake.
Researchers have elucidated the molecular mechanism by which LEM-3 cuts DNA bridges during cytokinesis, a crucial step in cell division. The study found that LEM-3 is essential for resolving persistent DNA bridges and maintaining chromosomal stability.
Researchers developed a new computational method, KMAP, to explore DNA sequence patterns and reveal regulatory element behavior. The study found an uncharacterized DNA motif linked to cancer biology and identified distinct repair pathways for CRISPR-Cas9 editing.
A team of researchers has comprehensively predicted the location of non-B DNA structures in great apes using newly available telomere-to-telomere genomes. The study suggests that non-B DNA is enriched in these segments and may play a role in genetic diseases and cancer, with potential new functions discovered.
A new family of Ssn endonucleases was discovered, enabling targeted cuts in single-stranded DNA. This breakthrough sheds light on a crucial genetic mechanism with significant promise for biotechnology applications, including gene editing, DNA detection, and molecular diagnosis.
Scientists at the University of Birmingham have made strides in understanding how cells repair DNA damage. Two studies identify key players and mechanisms involved in preventing excessive DNA signal overload, which could lead to refinements in future cancer therapies.
A comprehensive review explores DNA computing circuits operating within living cells, leveraging dynamic nanodevices powered by DNA strand displacement reactions. Key findings include the integration of computational principles with random biochemical processes and chemical reactions in biological systems.
A new study found that recombinant adeno-associated virus (rAAV) capsids contain single-stranded DNA impurities derived from plasmid and host cell DNA. The researchers suggest that the adverse effects of these impurities may differ from those of double-stranded DNA, highlighting the need for further evaluation.
The Technion-developed method, DNAformer, accelerates DNA-based data retrieval by three orders of magnitude while improving accuracy. It uses a transformer model trained on simulated data to reconstruct accurate DNA sequences from erroneous copies.
For the first time, scientists have witnessed the moment DNA begins to unravel, revealing a necessary molecular event for DNA replication. This direct observation sheds light on the fundamental mechanisms that allow cells to faithfully duplicate their genetic material.
When DNA is damaged by UV light, cells reorganize their genetic material in 3D space to prioritize repair. This dynamic process involves areas of high-activity DNA regions being prioritized for fix and gene activity changes, triggering emergency response genes.
A team of scientists used cryo-electron microscopy to investigate G-quadruplexes, which have gained attention as potential therapeutic targets in cancer. The study reveals how secondary DNA structures like G4s can impede DNA replication and provides new insights into fundamental human biology.
Researchers at Caltech developed a DNA origami-based approach to create reusable, multifunctional biosensors for quickly detecting proteins in bodily fluids. The system uses a lilypad-like structure with short DNA strands to bind to molecules of interest, allowing for the detection of larger molecules such as large proteins.
Researchers at Peking University demonstrate potential of nuclear electric resonance to control nitrogen atom spins in DNA, encoding genetic information. The study reveals intricate relationships between electric field gradients, nitrogen orientations and DNA base structures.
A team of University of Florida chemical engineers has developed a microfluidic device for DNA purification that extracts genomic DNA without centrifuges or magnetic beads. The device uses fluid flow and electric fields to remove contaminants, resulting in more accurate results and reducing DNA fragmentation.
Researchers found that SMC motors can pull DNA from both sides of the molecule, resolving controversies about their movement. This discovery could help understand how genes are regulated and potentially lead to new treatments for diseases like cancer and neurodegenerative disorders.
A new study reveals unexpected patterns of mutation inheritance in family trees of single cells, showing that some DNA damage can last for two to three years without repair. This persistence creates multiple chances for harmful mutations to occur, leading to cancer development.
Researchers introduce epi-bit method for DNA self-assembly, allowing for fast, low-cost, and accessible data storage. The method encodes information through selective methylation on cytosine bases, with an error rate of less than 1.42% in readouts.
Researchers discovered that human SMC protein cohesin twists DNA in a left-handed way by 0.6 turns per step, regulating chromosome function and impacting health. This finding provides essential clues for resolving the molecular mechanism of twisted DNA looping.
Researchers have developed a fast and rewritable DNA computing method that uses DNA origami registers to process digital files. This method has the potential to be more powerful than current silicon-based machines.
Researchers at Durham University have made a breakthrough in understanding DNA gyrase, a vital bacterial enzyme and key antibiotic target. The study reveals unprecedented detail of the enzyme's action on DNA, potentially opening doors for new antibiotic therapies against resistant bacteria.
Researchers at the Hubrecht Institute have mapped the activity of DNA repair proteins in individual human cells, discovering unique and sometimes rare ways to repair DNA damage. These proteins organize into 'hubs' where multiple damaged DNA regions come together, making the process more efficient.