A new method for recording information to DNA has been proposed by Northwestern University researchers, taking minutes to complete instead of hours or days. This method, called TURTLES, uses a novel enzymatic system to synthesize DNA that records rapidly changing environmental signals directly into DNA sequences.
A study by researchers at Baylor College of Medicine reveals that supercoiling and looping in DNA can transmit mechanical stress along the backbone, promoting separation of strands and exposure of DNA bases. This phenomenon, known as 'action at a distance,' suggests a new perspective on how DNA activities are regulated.
Researchers at MUSC have discovered that hnRNP E1, a tumor suppressor protein, not only binds RNA but also DNA to maintain genome integrity and sense or prevent DNA damage. The protein's binding is sequence- and structure-specific, suggesting its potential role in preventing cancer metastasis.
Researchers reveal stable phosphatidylglycerol-DNA complex formation with strong van der Waals and hydrophobic interactions. The complex's structural parameters are determined, providing insight into the differences between DNA-phospholipid interaction and fatty acid binding.
The study elucidates the mechanism by which CXCL14 binds to CpG DNA and enhances innate immune responses. A complex formation between CpG DNA and CXCL14 is necessary for internalization of CpG DNA, and multiple amino acids stabilize binding.
A team of scientists from Incheon National University developed a programmable DNA-based microfluidic chip that can perform complex mathematical calculations, such as Boolean logic operations. The chip uses a motor-operated valve system to execute a series of reactions in rapid and convenient manner.
GIST scientists utilized latest advances in single molecule detection to observe the enzymatic activity of gene repair. The study revealed that ExoIII has an affinity for damaged DNA sites, creating a gap that Pol I fills. Understanding this mechanism may lead to technologies for targeted gene repair and drug development.
Researchers found no significant DNA changes in stem cells after transplant, but an anti-virus drug called ganciclovir may contribute to cancer development. Further research is needed to investigate this further.
Scientists at Kyoto University developed a chemical compound that can tag and remove mutant DNA sequences from mitochondria, potentially treating mitochondrial diseases. The approach overcomes existing problems with genetic material injection and antioxidant drugs.
Researchers investigate G-quadruplex stabilization in neurons, astrocytes, and microglia, revealing differences in genomic instability and DNA repair pathways. These findings suggest that stabilized G4s contribute to brain aging and neurodegeneration.
A new study by Newcastle University researchers has developed dynamic DNA data structures that can store and retrieve information in an ordered way. The study presents an in vitro implementation of a stack data structure using DNA polymers, which stores and retrieves information in a last-in-first-out order.
Researchers have developed a new method to measure DNA torsional stiffness, which can impact how cells work. The technique provides insights into the biological implications of twist-induced phase transitions in DNA.
A new study published in Blood Cancer Discovery reveals that children with acute myeloid leukemia (AML) who have more DNA changes in their blood stem cells are more likely to survive. The researchers hope that this finding can be used as a tool to identify high-risk patients and improve treatment outcomes.
Researchers at Flinders University have developed a method to recover DNA from the surface of capsules containing illicit drugs, such as MDMA. This breakthrough enables law enforcement agencies to potentially link various drug seizures around the world and identify suspects through DNA profiling.
The study describes the three-dimensional structure of the MUTYH protein and its interaction with PCNA, a key player in DNA replication. The researchers found that mutations in the MUTYH gene reduce its binding affinity to DNA and destabilize its structure, leading to decreased DNA repair activity.
Researchers analyzed DNA repair targeting in cutaneous apocrine sweat gland carcinoma (CAC) cells with a PALB2 aberration. They found sensitivities to BET-bromodomain inhibition and modest sensitivity to DNA-PKi, ATRi, WEE1i, and PARPi. The study also identified a potential therapeutic opportunity for targeting PALB2 deficient cells th...
Researchers from Osaka University found that protein phosphatase 1 binds to RIF1 at broken DNA ends, blocking proteins that create single-stranded DNA tails, and promoting the non-homologous end joining repair pathway. This novel mechanism helps protect double-strand breaks from developing a tail, which is what Shieldin binds to.
An international team has developed a method to analyze ancient DNA in museum specimens, allowing for their placement on the evolutionary timeline. The technique enabled researchers to trace the evolutionary history of several species over tens of millions of years.
Researchers found that castration of male sheep leads to delayed DNA aging compared to intact males, with epigenetic clocks and DNA methylation patterns differing between the two groups. The study's findings also suggest a link between castration, male hormones, and sex-specific differences in DNA aging.
A new genetic technique edits every chloroplast in a plant without changing its nuclear DNA. Researchers achieved this by modifying chloroplast genes specifically and removing the DNA editing tool, which cannot be inherited by future seeds. This approach could potentially solve both technical challenges and controversies surrounding GMOs.
Researchers have developed a novel method for studying DNA repair in yeast cells that can be conducted entirely in space, using CRISPR/Cas9 genome editing technology. The technique successfully demonstrated the viability of the new method on the ISS, paving the way for extensive research into DNA repair in space.
Researchers developed a new LEGO-like technique to assemble DNA molecules with protruding bumps, allowing precise measurement of DNA speed through nanopores. The study revealed a two-step process where DNA speed slows down before accelerating near the end of translocation.
A study by Nagoya University researchers reveals that cohesin's ring needs to open for certain processes, like DNA replication and chromosome segregation. This opening facilitates the progressive replication of the DNA double helix and allows DNA looping, crucial for regulating gene expression.
Specialized bacteria in the oceans' seafloor have been found to consume and recycle DNA from dead biomass, a process that plays a crucial role in global biogeochemical cycles. The study identified novel DNA-eating bacteria, including the species Izemoplasma acidinucleici, which have sophisticated tools for degrading DNA.
Thomas Jefferson University researchers identified a highly efficient human reverse transcriptase, polymerase theta, which can convert RNA sequences back into DNA. This finding challenges the long-held assumption that polymerases only work in one direction and has implications for various fields of biology.
Researchers at North Carolina State University have developed a technique that allows users to preview stored DNA data files, such as image thumbnails. This innovation improves the efficiency and user experience of DNA data storage, enabling users to identify specific files without opening the entire file.
Researchers at MIT have developed a technique to label and retrieve DNA data files from a large pool, enabling feasible DNA data storage. By encapsulating each file in a silica particle labeled with single-stranded DNA barcodes, they demonstrated accurate retrieval of individual images stored as DNA sequences.
Scientists have created a molecular switching circuit made of DNA that can change the shape of soft matter based on pH levels. The DNA switches react differently with their surroundings, allowing for potential applications in soft robotics and logical function networks.
Scientists from Kanazawa University use HS-AFM to study DNA-histone interactions, revealing spatiotemporal dynamics and real-time observations of wrapping, sliding, sandwiching, and wrapping motions. The study provides valuable insights into the compactification of DNA and its potential applications in understanding human diseases.
Researchers have created DNA-based materials with tunable properties, which can be controlled by adjusting the level of supercoiling. These materials have potential applications in drug delivery and tissue regeneration.
Researchers developed a DNA vaccine encoding SARS-CoV-2 spike protein, which induced long-lasting antibodies in mice and hamsters. The vaccine showed protective efficacy against COVID-19 infection in hamsters, with no loss of body weight or viral RNA in their lungs.
A study of over 350,000 people found that genetic variants in mitochondrial DNA can increase the risk of type 2 diabetes, multiple sclerosis, and other diseases. Additionally, mitochondrial DNA influences characteristics such as height and lifespan. The study suggests complex interaction between mitochondrial and nuclear DNA.
A research team at HKUST has discovered the mechanism of DNA melting and how an antibiotic called Myxopyronin inhibits this process. The study found that Myxopyronin binds to a partially closed form of the flexible clamp domain, diminishing the gate's ability to close and eventually inhibiting DNA melting.
Researchers create system to sense unusual DNA folds using chemical receptors, which could silence genes linked to cancer or promote tumor growth. The technology has potential applications in disease research and gene regulation.
Researchers have identified a critical role for DNA replication timing in controlling the packing of DNA with its regulatory factors, known as the epigenome. The study found that disrupting this program can lead to inappropriate cellular functions and negative health outcomes.
Researchers at the Max Planck Institute for Evolutionary Anthropology developed new methods to enrich and analyze human nuclear DNA from sediments. This breakthrough allows for the study of population relationships and the deep human past, providing new opportunities for investigation and expanding the range of options to tease out evo...
A recent study published in Cell Reports reveals that DNA supercoiling is involved in regulating gene expression, rather than being just collateral damage. The researchers found that specific genes are massively activated in response to stimuli, and topoisomerase TOP2A plays a crucial role in this process.
Researchers at UC Riverside developed a technique to capture cell-free DNA from fluid samples using an electric charge, making it easier to detect and diagnose cancer. The glass nanopore system can accumulate DNA near the surface, enhancing signal-to-noise ratio and potentially detecting mini lipid-based droplets released by tumors.
A team developed a novel approach to generate precisely controlled, helical palladium-DNA systems that mimic the organization of natural base pairs in double-stranded DNA molecules. The process is based on self-organized assembly of a special palladium complex and single-stranded DNA molecules.
Scientists have identified specific regions within the DNA of neurons that accumulate a certain type of damage, which appears to be unique to neurons. This discovery challenges current knowledge about the cause of DNA damage and its potential implications in neurodegenerative diseases.
A new technique called GETMap can trace the source of circulating DNA in the blood, which could be used to monitor organ transplant rejection, detect hidden cancers, and even screen for early asymptomatic cancers. The test identifies genetic and epigenetic markers to determine whether DNA comes from a specific tissue or organ.
Researchers at Cold Spring Harbor Laboratory have discovered how human cells assemble and disassemble Origin Recognition Complexes to initiate DNA replication. The study reveals a specific interaction between ORC1 protein and CDC6, allowing them to work together in a coordinated manner.
Researchers have solved a long-standing mystery of how living organisms distinguish RNA and DNA building blocks during gene expression. The discovery enables the design of more effective antiviral drugs targeting viral RNA polymerases.
A team of researchers at Tokyo Institute of Technology has identified a critical protein segment responsible for activating the MRN complex, a key player in DNA repair. The discovery reveals a conserved function across species, with implications for genetic disorders and gene editing applications.
A team of researchers from Aalto University and other institutions have developed a method to monitor the digestion of DNA nanostructures by endonucleases in real time. This study provides insights into tunable drug delivery and new design paradigms for DNA-based drug-carriers, with potential applications in cancer treatment.
Researchers used DNA origami to analyze ultra-fast movements of CRISPR enzymes, enabling them to understand how they recognize target sequences. This technique will help optimize CRISPR for fewer off-target matches and improve gene editing processes.
The article discusses the relationship between DNA repair pathways and cancer cells, highlighting five critical pathways and their impact on cancer evolution. The review suggests potential clinical interventions to address pathway damage, offering new insights into cancer treatment.
Research reveals that regions of the human genome with unusual DNA folding tend to have higher mutation rates than others. The study found that non-B DNA sequences, which can fold into different conformations, play a major role in determining regional variation in mutation rates across the genome.
Researchers have successfully fabricated superconducting nanowires using DNA origami, allowing for precise addressability and potential applications in nanoelectronics and novel devices. The technique reduces resistance by 90% at low temperatures, enabling the creation of 3D superconducting architectures.
DNA origami is a technique that folds long DNA strands to create mini 3D structures for biosensors and drug delivery. A new guide from NIST provides a comprehensive resource for researchers to design efficient nanostructures using state-of-the-art tools.
Researchers at the University of Münster developed a strategy to switch DNA functions on and off using light. This allows for better understanding and control of cellular processes, such as epigenetics. The method involves transferring photocaging groups to DNA using protein engineering.
Researchers have proposed a new approach using neural networks and omics data to predict Z-DNA regions in the human genome. DeepZ, a recurrent neural network, achieved higher accuracy than existing algorithms, allowing for the mapping of potential Z-DNA sites across the entire genome.
Researchers at the Garvan Institute of Medical Research have discovered a new form of DNA methylation in zebrafish, specifically at TGCT repeats. This discovery could lead to the development of new experimental models for studying how DNA modifications impact human development and disease.
Researchers designed DNA-based nanogels that break down and release chemotherapeutic contents only in cancer cells. The nanogels use biomarkers like FEN1 to differentiate between healthy and cancerous cells, reducing the impact on normal cells.
This study uses sedimentary DNA to track the abundance of three major fish species over 300 years, providing a new tool for evaluating evolution and responses to climate changes. The results suggest that sedimentary DNA concentrations can reflect the abundance of aquatic species, enabling long-term monitoring efforts.
Researchers at Osaka University found that Polβ prevents DNA breaks in brain cells of the hippocampus during early postnatal development, supporting cognitive development. The study also reveals a link between DNA demethylation and increased double-stranded breaks, which can lead to altered gene expression and impaired memory formation.
Researchers found a distinct DNA methylation signature in cord blood of newborns with autism spectrum disorder (ASD), spanning regions linked to early fetal neurodevelopment. The findings may hold clues for early diagnosis and intervention.
A study by Duke researchers found that transcription factors tend to bind strongly to mismatched sections of DNA, which can lead to the accumulation of mutations in regulatory regions. This binding is thought to be energetically favorable due to the lower energy required to distort mismatched DNA.
A new CRISPR-Cas3 tool allows for larger DNA edits, enabling researchers to study disease and normal function in humans and other organisms. This advancement will facilitate the development of new treatments and improve our understanding of the human microbiome.
Scientists at Harvard's Wyss Institute have created a new method for enzymatic DNA synthesis that uses photolithographic techniques to write digital data into DNA. The approach enables the simultaneous writing of multiple DNA strands with varying sequences, paving the way for high-capacity data storage in DNA.