New research reveals that simple DNA-peptide interactions can generate a surprising diversity of compartmentalised higher-ordered phase behaviours, suggesting these polymers' primordial interactions may have helped create modern complex biological structures. The study found that changes in environmental conditions, such as salinity or...
An international team detected DNA from ambrosia beetles trapped in recent tree resin for less than seven years. The study challenges previous fails in finding DNA in older samples and opens up new possibilities for genetic research.
Researchers at Hebrew University of Jerusalem have made a breakthrough in harnessing DNA molecules for disease detection and electronics. They developed a highly-reliable method to measure electric currents passing through individual DNA molecules, finding that the current flows along the backbone rather than base-pairs.
Scientists have developed a method to create high-resolution maps of contact points between replicated chromosomes, providing insights into the molecular machinery regulating DNA conformation and repair. This breakthrough could shed light on the mechanics underlying genome transport during cell division.
Researchers have identified the structure of double-strand DNA break repair by PARP enzymes, which can bridge broken DNA ends together. The study provides insight into the mechanisms underlying PARP activation and catalytic cycle, potentially aiding in understanding resistance to cancer drugs that inhibit PARP.
Researchers at Arizona State University are exploring DNA-based storage technologies that can store and retrieve information securely. The project aims to create microscopic forms with encryption capabilities rivaling silicon-based semiconductor memories.
A team of researchers at KIT demonstrated that DNA damage can occur up to 30 DNA building blocks away from the entry point of UV radiation. This finding has significant implications for understanding DNA photodamage and its role in skin cancer.
Researchers at Arizona State University have developed a new type of meta-DNA structure that can be used to engineer sophisticated nanoscale structures and devices. The meta-DNA self-assembly concept has opened up new possibilities for optoelectronics, including information storage and encryption, as well as synthetic biology.
A Politecnico di Milano study reveals that DNA shape is determined by precise rules governing CTCF protein sequences. This discovery opens doors to engineering DNA structure for pharmaceuticals, treating diseases like cancer.
Scientists at NIST have found a way to significantly enhance the accuracy of key information on how heat affects the stability of folded DNA structures. The novel mathematical algorithm automatically accounts for unknown effects, allowing scientists to design durable and complex structures made from DNA.
A recent study found that genetic background affects adaptations to aging in same-sex aging twins. DNA methylation changes correlate strongly with aging and are partly heritable in late life. The research highlights the role of genetic regulation in biological aging rates, including immune-inflammatory pathways.
Researchers discovered that DNA damage in moss Physcomitrella patens causes cells to reprogram into stem cells, producing an entire plant body. This phenomenon is a new adaptive strategy for plants under harsh environments.
Scientists at TU Wien have explained DNA's unusual behavior under tension using a unique combination of civil engineering and physics. The study reveals that DNA can twist more than expected when stretched, with significant consequences for biology and medicine.
Researchers at the University of Cambridge discovered that G-quadruplexes form in regions of DNA rich in guanine, playing a role in transcription and driving tumour growth. The structures are prevalent within genes and genetic regions active in breast cancer cells.
Researchers propose using repetitive DNA sequences, known as flipons, to create logic circuits and perform calculations. These sequences can form different DNA structures, enabling the creation of genetic programs that can be used to overcome environmental challenges.
Scientists have identified unique de novo DNA methylation targets for DNMT3 enzymes during mammalian development. Dnmt3a exclusively regulates differentiation-related genes, while dnmT3b regulates X-chromosome genes. The study's findings may lead to a novel therapeutic approach for patients with DNMT3 mutations.
Researchers create Y-shaped DNA nanostructures that can fuse exclusively with similar ones, demonstrating controllability of liquid-liquid phase separation. The team also constructs a special DNA structure to bridge incompatible motifs, allowing for the creation of Janus-shaped droplets with localized cargo molecules.
Researchers discovered a new DNA storage technique that encodes and retrieves information with unprecedented accuracy and efficiency. The method harnesses the capacity of intertwined DNA strands to store durable and compact data, outperforming current methods in information accuracy and efficiency.
Researchers discovered that DNA droplets can exhibit bubbling behavior, similar to boiling water, when exposed to certain enzymes. This phenomenon occurs in lightly-bound systems, where the enzyme penetrates the crowded DNA particles, causing an osmotic effect and leading to a burping-like outburst.
Researchers have developed a new method for estimating fish populations by analyzing environmental DNA in water. The approach, which accounts for the degradation of DNA molecules, has been successfully tested in Japan and shows promise for quantitative monitoring of aquatic ecosystems.
A Cornell-led collaboration turns organic matter DNA into biodegradable gels and plastics, reducing petrochemical consumption. The resulting materials can be used in various applications, including everyday plastic objects, adhesives and drug delivery systems.
Scientists at Johns Hopkins Medicine have developed a light-activated CRISPR system that allows for targeted DNA cutting within seconds. The new technology reveals new details about the DNA repair process, which may aid in understanding aging and cancer.
Researchers at NC State University developed DORIS, a new approach to DNA data storage that enables users to read or modify files without destroying them. This allows for increased information density and easier scalability.
Researchers at EMBL Rome reveal that protein glycosylation plays a central role in DNA methylation, inducing gene silencing by modifying regulatory factors. This breakthrough sheds light on the mechanism behind the most studied epigenetic modification.
Researchers have developed a DNA-based method to identify food components and specify their origin. The technique used k-mers for analysing genomic DNA data, allowing for the quick identification of plant or bacterial DNA in food samples.
Researchers screened 163,000 DNA mutations in C. elegans roundworms to understand the interplay between DNA damage and faulty repair systems. The study found that multiple DNA repair pathways work together to prevent mutagenesis, and a single mutagen can leave varying mutational signatures depending on the faulty repair system.
The study focuses on flipons, DNA sequences that act as on-off switches to change genetic information. Flipons enable the compilation of multiple messages from a single genomic sequence, generating more diversity than mutation or DNA rearrangements.
An international team studied the Pol δ-DNA-PCNA complex to understand DNA replication and how it can malfunction. The team found that PCNA acts as a platform for different processing enzymes, similar to a toolbelt with an array of tools.
Scientists have developed a new method called CIDER-Seq to sequence circular DNA, providing insight into its function in bacterial and viral genomes. The tool also sheds light on extrachromosomal circular DNA in human and plant cells, which has been difficult to study due to the lack of effective methods.
The ability to extinguish fearful memories relies on DNA flexibility, which enables rapid changes in gene activity and RNA editing. Researchers found that the enzyme ADAR1, which converts Z-DNA back into B-DNA, plays a critical role in fear extinction.
Researchers analyzed over 2700 C. elegans genomes to understand the causes of mutations. They found that DNA damage and inaccurate repair mechanisms can lead to mutations, which are a root cause of cancer. The study challenges the assumption of a single cause for mutational signatures in cancer genomes.
Scientists at Huntsman Cancer Institute have discovered the protein LEM2 plays two vital roles during cell division: sealing damaged DNA and recruiting factors that disassemble fibers separating DNA sets. This process may be critical for understanding cancer development and progression.
Researchers recreated DNA damage caused by tobacco smoke in laboratory-grown human bladder tissues. The study found that while direct DNA damage from smoke toxins is unlikely to cause bladder cancer, they may accelerate other DNA-damaging events.
Researchers discovered that helper proteins Swi5-Sfr1 and Rad51-related helpers collaborate to activate Rad51 in DNA repair. Mutations in Swi5-Sfr1 compromised activation, but yeast cells lacking Rad51-related helpers still repaired DNA, suggesting a compensatory role.
Researchers found that cells protect themselves from mechanical stress by not only deforming cell nuclei but also softening the genetic material itself. This mechanism helps prevent DNA damage and disease, including cancer. The study also reveals that healthy stem cells are more resistant to mechanical stretch than cancer cells.
Researchers discovered that a type of junk DNA in mosquitoes orchestrates the start of their life by regulating the activity of other RNA molecules. The breakdown of maternal RNA is essential for further development and is controlled by the stuttering DNA.
Researchers discovered a crucial DNA repair process in yeast that involves a protein called Rad51 and two helper proteins called Swi5-Sfr1. This finding may help understand why DNA repair processes fail to function properly in humans, leading to diseases like cancer and inherited conditions.
Research reveals a new mechanism for controlling DNA methylation in cells, involving the ubiquitination of PAF15, which is crucial for maintaining DNA methylation and inhibiting cancer cell proliferation. The discovery has significant implications for the development of new inhibitors of DNA methyltransferase
Researchers discovered that a combination of small molecules and CHK1 inhibitors can boost cancer cell killing, even in cancers resistant to current treatments. Targeting B-family DNA polymerases also increased effectiveness.
Researchers have discovered a novel 'toolkit' of proteins that can repair breaks in DNA, which can lead to cellular ageing, cancer, and neurological diseases. The discovery of the protein TEX264 holds promise for treating cancer and preventing age-related diseases.
Researchers develop peptoid-coated DNA origami that maintains structural integrity and functionality in different physiological environments, enabling potential use in delivering anti-cancer drugs and proteins. The method involves designing peptoids to stabilize DNA origami, with the brush-type architecture achieving optimal protection.
Researchers used Rapid DNA Identification to quickly identify 58 victims of the 2018 Camp Fire, a technique that can provide results within hours. This work represents the first use of Rapid DNA Identification in a mass casualty event and has since been utilized in another incident.
Researchers at Delft University of Technology have discovered a new loop structure in DNA, called the 'Z loop', which differs from traditional single loops and occurs more frequently. This discovery sheds light on how condensin proteins fold DNA into a zigzag structure through complex interactions.
Researchers developed a rod-shaped DNA motor that rolls at speeds up to 100 nanometers per minute, breaking previous records. The motor uses RNA fuel and can travel the length of a human stem cell in two or three hours.
Researchers have discovered that cancer cells can tolerate high amounts of single-stranded DNA, which is a common sign of stress during cell division. By inhibiting the POLA1 gene, cells can be made to crash when they divide, potentially leading to new cancer treatments.
Researchers at the University of Toronto have found a complex system of filaments and liquid droplet dynamics that enables the repair of damaged DNA in cell nuclei. This discovery challenges previous assumptions about DNA damage and highlights the value of cross-disciplinary research.
Researchers extracted DNA from museum specimens using a vortex fluidic device (VFD), accelerating the process from days to hours. The breakthrough enables exploration of historical and extinct species' genetic information, shedding light on human impact on ecosystems.
Researchers found that jumping genes, also known as transposable elements, play a crucial role in stabilizing the 3D folding patterns of DNA molecules. This discovery contradicts the long-held assumption that the precise order of letters in the DNA sequence dictates the broader structure of the DNA molecule.
The study found that H2A.Z promotes H4K20me2 deposition, recruiting ORC1 to license and activate early DNA replication origins. H2A.Z-regulated origins have higher firing efficiency and earlier replication timing compared to other origins.
A team of scientists has identified the tools for repairing damaged DNA molecules, revealing new insights into how the human genome works. The study found that damaged DNA undergoes a unique packing state during repair, moving faster than healthy DNA but depending on its size.
Researchers from the La Jolla Institute for Immunology identified a new role for HMCES in alternative end-joining, a secondary strategy used by mammalian cells to rejoin severe cuts across both strands of DNA. This discovery suggests that HMCES is versatile enough to accomplish entirely different tasks in response to DNA damage.
Two research teams deciphered how RNase H2 and RNase H1 are coordinated to remove RNA-DNA hybrid structures from chromosomes. The study found that RNase H2 primarily acts during the G2 phase after DNA replication, while RNase H1 can act in all phases of the cell cycle.
A study reveals how mitochondrial DNA is transmitted between generations, showing that a bottleneck occurs during oogenesis, reducing genetic diversity. This process can affect the inheritance of disease-related mutations, making it crucial for genetic counseling in women planning pregnancies.
Researchers created a mutated form of DNA repair protein RAD51 to study its critical functions at stalled replication forks. The study found that RAD51's strand exchange activity is not required for fork regression, but is crucial for restarting replication once the obstacle has been removed.
Scientists from the University of Copenhagen have identified two proteins, 53BP1 and RIF1, that orchestrate the repair of damaged DNA by building a three-dimensional scaffold around broken strands. This scaffold concentrates special repair proteins, enabling cells to prevent collateral damage and maintain genetic stability.
Researchers have discovered how certain proteins orchestrate repair of damaged DNA by building a three-dimensional scaffold that concentrates special repair proteins. This discovery has significant implications for understanding how DNA damage causes disease and designing treatments for patients with unstable DNA.
Flipons are sequences that alter DNA conformation, enabling cells to dynamically modify gene expression. This adaptable coding allows cells to change their response to environmental stressors, such as oxidative stress, which promotes Z-DNA flipon formation.
Researchers found that intrinsic mechanical properties of chromatin determine how fibers entwine during DNA replication, preventing tangles and ensuring proper segregation. The study highlights the importance of physical principles in biological processes and provides new insights into chromatin behavior.
A multi-institutional team found that genomic structural variation alters DNA methylation across hundreds of genes, reducing global levels in human cancers. This study provides new insights into the mechanisms underlying cancer development and suggests potential implications for cancer immunotherapy.
Researchers optimized DNA-PAINT for faster image acquisition using orthogonal DNA sequences, achieving sub-10nm spatial resolution and multiplexing capabilities. This improvement allows for biomedically relevant high-throughput studies, such as diagnostic applications.