A novel method has been developed to infer DNA methylation patterns in non-skeletal tissues from ancient specimens, providing new insights into human evolution. The study found over 1,850 sites of differential methylation specifically in prefrontal cortex neurons, linked to genes crucial for brain development.
SourceThe Hebrew University of Jerusalem·JournalNature Ecology & Evolution·TypeComputational simulation/modeling·DateNov 20, 2024
Researchers found that genetic collisions between transcription and DNA replication lead to large tandem duplications in cancer cells, which can be identified through dosage imbalance. These duplicates are associated with poor patient survival and high correlation with mutations in genes TP53, CDK12, and SPOP.
SourceUniversity of Chicago Medical Center·JournalNature Communications·TypeExperimental study·DateNov 19, 2024
The study found that DNA packaging sends signals through an unusual pathway, affecting cell division and growth. Chromatin acts as a guide, telling the cell how to read and use the information in the DNA.
SourceHubrecht Institute·JournalMolecular Cell·TypeExperimental study·DateNov 12, 2024
The signaling molecule (p)ppGpp regulates diverse cellular processes essential for DNA repair and stress response, enabling bacterial adaptation to adverse conditions. It influences nucleotide excision repair, mismatch repair, and recombinational repair pathways, promoting the survival of bacteria under antibiotic pressure.
SourceXia & He Publishing Inc.·JournalGene Expression·DateNov 11, 2024
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AmScope B120C-5M Compound Microscope supports teaching labs and QA checks with LED illumination, mechanical stage, and included 5MP camera.
Scientists have developed a new class of compliant DNA nanopores that can transport molecules through cell membranes and adjust their diameter. These pores offer possibilities for biomedical applications, including targeted drug delivery and molecular diagnostics.
SourceDelft University of Technology·JournalAdvanced Materials·TypeExperimental study·DateSep 26, 2024
Researchers from the Kind Group have gained new insights into the mechanism behind the spatial organization of DNA within cells of early embryos. They found that DNA regions near the nuclear edge are repelled by a specific protein modification, leading to an unusual organization that enables cells to differentiate into various types.
SourceHubrecht Institute·JournalNature Genetics·TypeExperimental study·DateSep 16, 2024
The UAB researchers propose a multilayer structure of DNA that is fully compatible with the structural and functional properties of chromosomes. This organization can be explained by weak interactions between nucleosomes, which are repetitive blocks that fold the DNA double helix.
SourceUniversitat Autonoma de Barcelona·JournalSmall Structures·TypeData/statistical analysis·DateSep 12, 2024
A UCL-led research team has crystallized the first alternative DNA structure from the insulin gene, revealing its shape and structure. The discovery suggests that different variants in the insulin gene can form different DNA structures, which could affect insulin function and potentially play a role in diabetes development.
SourceUniversity College London·JournalNature Communications·DateSep 6, 2024
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Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.
Researchers at Heriot-Watt University are developing a new method to process blood samples and detect cancerous DNA, which could reduce the need for painful biopsy surgery. The MicroSNARE project aims to further develop a technique to diagnose, analyse and characterise tumours earlier and detect recurrence before it spreads.
Researchers at RIKEN Center for Biosystems Dynamics found multiple specialized types of DNA replication in early-stage embryos, including a period of instability prone to chromosomal copying errors. This discovery could lead to improved methods of in vitro fertilization (IVF) and better strategies for minimizing chromosomal abnormalities.
Researchers investigated the central role of Sae2 in regulating yeast DNA repair. A recent study found that Sae2 controls Mre11 endo- and exonuclease activities via different mechanisms, essential for maintaining genetic information.
SourceKindai University·JournalNature Communications·TypeExperimental study·DateAug 28, 2024
Researchers found that CDCA7 uniquely identifies hemimethylated DNA and recruits HELLS to complete methylation. This mechanism is distinct from de novo DNA methylation and holds promise for therapies targeting ICF syndrome, cancer prevention, and anti-aging.
SourceThe Institute of Medical Science, The University of Tokyo·JournalScience Advances·TypeExperimental study·DateAug 26, 2024
A recent study discovered that mitochondria frequently insert their DNA into brain cell nuclei, which may contribute to early death. The research found that participants with more mitochondrial DNA insertions in their brain cells were more likely to die earlier than those with fewer insertions.
SourceColumbia University Irving Medical Center·JournalPLOS Biology·DateAug 22, 2024
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Kestrel 3000 Pocket Weather Meter measures wind, temperature, and humidity in real time for site assessments, aviation checks, and safety briefings.
Researchers at Seoul National University have developed a technology to quickly predict the mechanochemical shape changes of DNA origami structures based on the concentration of binding molecules. This methodology enables the design of tunable DNA origami structures that can change shape as needed, contributing to advancements in DNA n...
SourceSeoul National University College of Engineering·JournalNature Communications·TypeComputational simulation/modeling·DateAug 8, 2024
A new AI model, Deep Predictor of Binding Specificity (DeepPBS), can accurately predict protein-DNA binding across different types of proteins. This tool allows for the prediction of binding specificity from protein-DNA complex structures, reducing the need for high-throughput sequencing or structural biology experiments.
SourceUniversity of Southern California·JournalNature Methods·TypeData/statistical analysis·DateAug 8, 2024
Researchers developed an AI model called GROVER that treats human DNA as a text, learning its rules and context to draw functional information about the DNA sequences. The tool has the potential to unlock the genetic code and advance personalized medicine.
SourceTechnische Universität Dresden·JournalNature Machine Intelligence·TypeNews article·DateAug 5, 2024
A team of researchers has made a groundbreaking discovery in the DNA repair mechanism, revealing how proteins recognize and repair damaged DNA. The study, published in Nature, uses cutting-edge imaging techniques to visualize how DNA repair proteins move on single molecules of DNA and initiate repair at crosslinks.
SourceMedical Research Council (MRC) Laboratory of Medical Sciences·JournalNature·TypeExperimental study·DateJul 31, 2024
Scientists at deCODE Genetics found that genome variants drive the correlation between DNA methylation and gene expression. The research uses new nanopore sequencing technology to analyze DNA sequences in real-time, revealing a link between noncoding sequence variants and diseases.
SourcedeCODE genetics·JournalNature Genetics·TypeMeta-analysis·DateJul 24, 2024
Aranet4 Home CO2 Monitor
Aranet4 Home CO2 Monitor tracks ventilation quality in labs, classrooms, and conference rooms with long battery life and clear e-ink readouts.
Scientists found no significant differences in mutation rates of DNA strands despite different replication processes. The accumulation of mutations is shaped by DNA accessibility on repair efficiency rather than damage location.
SourceGerman Cancer Research Center (Deutsches Krebsforschungszentrum, DKFZ)·JournalNature·DateJun 13, 2024
Researchers at MIT develop a glassy, amber-like polymer that can store DNA at room temperature while protecting the molecules from damage caused by heat or water. The T-REX method allows easy removal of DNA without damaging it, making it a promising technology for storing digital information on DNA.
SourceMassachusetts Institute of Technology·JournalJournal of the American Chemical Society·DateJun 13, 2024
Researchers developed a new technique called HiDEF-seq to detect early molecular changes in DNA code that precede mutations. The study found higher numbers of single-strand DNA changes in healthy cells from people with genetic syndromes linked to cancer, suggesting a link between these changes and the development of cancer.
SourceNYU Langone Health / NYU Grossman School of Medicine·JournalNature·TypeExperimental study·DateJun 12, 2024
A research team has discovered that G-quadraplex DNA (G4-DNA) accumulates in neurons and dynamically controls gene expression underlying long-term memory formation. The study revealed the causal mechanism underlying G4-DNA regulation, involving site-directed deposition of the DNA helicase DHX36.
SourceUniversity of Queensland·JournalJNeurosci·TypeExperimental study·DateMay 1, 2024
Researchers at Baylor College of Medicine have discovered how DNA gyrase resolves DNA entanglements, revealing the first step in the mechanism. The study used advanced imaging techniques to visualize the interactions between supercoiled DNA and the enzyme, showing that gyrase is attracted to the looped structure.
SourceBaylor College of Medicine·JournalScience·TypeExperimental study·DateApr 11, 2024
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Researchers have uncovered important details about the role of CSB/ERCC6 and CSA/ERCC8 genes in Cockayne syndrome. These genes encode enzymes associated with DNA repair that initiate transcription-coupled repair of toxic DNA-protein crosslinks, marking and breaking down damaged DNA.
SourceLudwig-Maximilians-Universität München·JournalNature Cell Biology·DateApr 10, 2024
Researchers developed a new, accessible, and affordable sequence method using qPCR to identify touch DNA. The study found that male DNA was detected on the female's hand in 50% of trials, indicating secondary transfer, while male DNA on the coffee mug was recorded 27% of time indicating tertiary transfer.
SourceUniversity of New Hampshire·JournalJournal of Forensic Sciences·DateMar 14, 2024
Researchers at CNIO have discovered a new protein that prevents DNA triplication, reducing the risk of cancer. The RAD51 protein ensures that DNA is copied only once, preventing errors and damage.
SourceCentro Nacional de Investigaciones Oncológicas (CNIO)·JournalThe EMBO Journal·TypeExperimental study·DateMar 4, 2024
Researchers identified 10 new types of DNA polymerase involved in mitochondrial DNA maintenance, including rdxPolA, which is a direct descendant of the α-proteobacterial symbiont that gave rise to the first mitochondrion. The study provides critical insights into the early evolution of mitochondrial DNA maintenance machinery.
SourceUniversity of Tsukuba·JournalMolecular Biology and Evolution·DateFeb 29, 2024
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CalDigit TS4 Thunderbolt 4 Dock simplifies serious desks with 18 ports for high-speed storage, monitors, and instruments across Mac and PC setups.
Researchers at Binghamton University have developed a new technique to extract usable DNA from bones of fire victims, allowing identification through dental records or DNA testing. The method uses two different techniques to extract DNA, one suitable for temperatures below 350 degrees and the other for hotter fires.
SourceBinghamton University·JournalJournal of Forensic Sciences·DateFeb 29, 2024
A protein called PARP1 forms a special healing zone that holds loose DNA ends together and allows DNA repair to begin. This discovery provides valuable insight into the molecular basis of DNA damage repair and its potential application in cancer treatment.
SourceTechnische Universität Dresden·JournalCell·DateFeb 6, 2024
A $2.8M NIH grant will help unravel the mysteries of disease-causing DNA folding errors, with researchers exploring the 'folding mechanisms' implicated in certain genetic disorders and cancers. The study aims to develop an artificial version of the DNA compaction system, also known as synthetic biology.
Researchers identified key factors in DNA repair, revealing the 'proofreading' portion of polymerase epsilon helps prevent strand breakage. This knowledge arms scientists with ways to enhance anti-cancer drug effectiveness and develop new diagnostic methods.
SourceTokyo Metropolitan University·JournalNucleic Acids Research·DateNov 11, 2023
The research team led by Michal Hocek successfully pushes the boundaries of DNA structure and function. They demonstrate that heavily modified double helices are stable enough to be used in medicine, mimicking natural molecules with therapeutic potential.
SourceInstitute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences (IOCB Prague)·JournalNucleic Acids Research·TypeExperimental study·DateNov 9, 2023
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GQ GMC-500Plus Geiger Counter logs beta, gamma, and X-ray levels for environmental monitoring, training labs, and safety demonstrations.
Researchers developed a novel method for extracting DNA from trace evidence samples, outperforming commercial reagent kits. The technique used modified lysis buffer and chitosan coated magnetic beads, achieving a detection limit of 10 cells.
SourceHefei Institutes of Physical Science, Chinese Academy of Sciences·JournalForensic Science International Genetics·DateNov 6, 2023
A new method extracts DNA from cat hair, linking suspects and crime scenes, with potential applications in dog cases too. Researchers found a single cat hair contains usable DNA, which can be sequenced for a more powerful link.
SourceUniversity of Leicester·JournalForensic Science·TypeCase study·DateOct 30, 2023
Scientists at the University of Vienna successfully created fluorescent duplexes that can generate any of 16 million colors, surpassing the previous limit of 256 colors. This breakthrough allows for accurate reproduction of digital images on a miniature surface with 24-bit color depth.
SourceUniversity of Vienna·JournalJournal of the American Chemical Society·DateOct 17, 2023
Researchers have developed a revolutionary DNA movable-type storage system, encoding 24 bytes of digital information in DNA and accurately reading it back through high-throughput sequencing. This sustainable approach eliminates costly DNA synthesis and offers potential cost reduction, scalability, and environmental friendliness.
The team plans to sequence the mitochondrial genomes of 10,000 Pennsylvanians, more than tripling the existing database and providing a crucial reference point for human identification cases. The new database will help forensic experts match DNA profiles to found evidence, improving the likelihood of successful identifications.
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Researchers used DNA-PAINT to study base-stacking interactions in DNA strands, finding that adding one more interaction increases stability by up to 250 times. This information allowed them to design a highly efficient three-armed DNA nanostructure with potential biomedical applications.
SourceIndian Institute of Science (IISc)·JournalNature Nanotechnology·DateAug 17, 2023
Researchers have discovered a new scar type, reciprocal pairs, in HR-deficient cancers that create specific chromosomal changes. These findings may lead to new approaches in treating these types of cancers by blocking backup repair mechanisms.
SourceNYU Langone Health / NYU Grossman School of Medicine·JournalNature·TypeExperimental study·DateAug 16, 2023
A new Australian study found that human DNA can be retrieved from all areas of dog samples, with higher amounts found on the head and back. The research suggests using DNA evidence from dogs in police investigations involving animals, expanding knowledge about human DNA transfer to pets.
SourceFlinders University·JournalGenes·TypeExperimental study·DateAug 15, 2023
Researchers used AI to predict Z-DNA fragment locations that overlap with known mutations causing severe hereditary diseases. These fragments can influence traits and body processes, including hair color, height, weight, and cholesterol levels.
SourceNational Research University Higher School of Economics·JournalLife Science Alliance·DateAug 11, 2023
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A global consortium of researchers has developed a large-scale, cross-species database and universal 'clock' to estimate age in all mammalian tissues. The study found that changes in DNA methylation levels are closely associated with life span and numerous other traits across mammals.
SourceUniversity of California - Los Angeles Health Sciences·JournalScience·TypeExperimental study·DateAug 10, 2023
Researchers have engineered bacteria that can detect tumor DNA in a live organism, using CRISPR technology. The bacteria, Acinetobacter baylyi, were designed to respond to specific DNA sequences associated with cancer, allowing for early detection and potentially preventing disease progression.
SourceUniversity of California - San Diego·JournalScience·TypeExperimental study·DateAug 10, 2023
A team of scientists studied the impact of radiation on DNA, revealing that damaged areas are separated by a critical distance before breaking. The study found an exponential increase in DNA breakage time with distance, providing crucial information for effective DNA repair processes.
SourceUniversità di Trento·JournalBiophysical Journal·TypeComputational simulation/modeling·DateAug 8, 2023
Researchers have developed a novel DNA-filtering system using α-hemolysin nanopores to reduce contamination in single-molecule DNA extraction. The technique, which uses phospholipids and the PCR clamp method, achieved a 99.98% reduction in DNA contamination.
SourceTokyo University of Agriculture and Technology·JournalAnalytical Chemistry·DateJul 25, 2023
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GoPro HERO13 Black records stabilized 5.3K video for instrument deployments, field notes, and outreach, even in harsh weather and underwater conditions.
Researchers have discovered abnormalities in the DNA instruction code that lead to the aggressive spread of colorectal cancer. By studying DNA methylation levels, they identified unique gene regions associated with liver metastasis and found a link between these changes and cancer cell aggression.
SourceUniversity of Otago·JournaliScience·TypeRandomized controlled/clinical trial·DateJun 26, 2023
Researchers at Weill Cornell Medicine have discovered a DNA molecule that folds into a four-way junction structure, allowing it to mimic the activity of green fluorescent protein (GFP). This breakthrough could lead to the development of new DNA-based fluorescent tags for rapid-diagnostic tests and various scientific applications.
Researchers have developed a new method to manipulate the shape of double-stranded DNA, known as triplex origami, which can create compacted structures with unique properties. This breakthrough has implications for gene therapy, nanoscale materials engineering, and our understanding of biological processes.
SourceAarhus University·JournalAdvanced Materials·TypeExperimental study·DateJun 16, 2023
Researchers have developed a new DNA sequencing method that allows for precise mapping of 5-methylcytosine, a key regulator of gene expression. This technique, called Direct Methylation Sequencing (DM-Seq), enables scientists to profile DNA using small samples and without damaging the sample, making it suitable for liquid biopsies and ...
SourceUniversity of Pennsylvania School of Medicine·JournalNature Chemical Biology·DateJun 15, 2023
Researchers discovered that components of heat-marred DNA can be absorbed during digestion and incorporated into the DNA of consumers, potentially triggering genetic mutations. This finding has important implications for dietary choices and public health, highlighting the need to reassess cooking methods.
SourceStanford University·JournalACS Central Science·DateJun 13, 2023
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Celestron NexStar 8SE Computerized Telescope combines portable Schmidt-Cassegrain optics with GoTo pointing for outreach nights and field campaigns.
Researchers from the University of Surrey investigate how protons move in Hachimoji DNA, a synthetic form of DNA not yet found in nature. They find that proton transfer happens more easily in Hachimoji DNA compared to regular DNA, suggesting potential implications for mutation rates and genetic systems.
SourceUniversity of Surrey·JournalRSC Advances·DateJun 2, 2023
A new study reveals the molecular mechanism behind bacterial DNA repair, showing that RNA polymerase plays a key role in identifying and fixing errors. Researchers found that RNaseHII cooperates with RNA polymerase to scan for misincorporated ribonucleotides in living bacterial cells.
SourceNYU Langone Health / NYU Grossman School of Medicine·JournalCell·TypeExperimental study·DateMay 16, 2023
The new PCR technique enables scalable DNA data storage, making large, energy-guzzling data centers obsolete. The technology stores data in compact, long-lasting DNA files that can be easily searched and retrieved using fluorescent labels.
SourceEindhoven University of Technology·JournalNature Nanotechnology·DateMay 4, 2023
Scientists have gained a deeper understanding of how Mot1 enzyme displaces TBP from DNA, shedding light on the process of gene regulation. The discovery uses advanced imaging techniques to visualize structural details in 3D models.
SourceLudwig-Maximilians-Universität München·JournalNature·DateApr 28, 2023
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Nikon Monarch 5 8x42 Binoculars deliver bright, sharp views for wildlife surveys, eclipse chases, and quick star-field scans at dark sites.
Researchers have visualized how DNA loops are formed through the interaction of cohesin, CTCF proteins, and DNA tension. The study reveals that DNA tension plays a crucial role in regulating the positioning of loops along the genome.
SourceDelft University of Technology·JournalNature·TypeNews article·DateApr 19, 2023
A new study reveals the mechanism of BRCA2's DNA repair function, understanding its role in breast and ovarian cancer development. The findings also provide insights into developing targeted cancer therapies by inhibiting DNA repair mechanisms.
SourceUniversity of California - Davis·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateApr 3, 2023
Researchers study DNA minicircles using hydrodynamic measurements to understand their behavior under twisting, revealing unique shapes and compactness. The investigation combines theoretical approaches with experimental methods to elucidate dynamic hydroelastic effects in DNA.
SourceUniversity of Warsaw, Faculty of Physics·JournalNucleic Acids Research·DateMar 29, 2023
Researchers at the CNIO have elucidated a key point about how cohesin attaches to DNA and forms loops. The study suggests that NIPBL is not necessary for cohesin to bind to DNA, but only for it to move and form DNA loops. This finding may be important in understanding Cornelia de Lange syndrome.
SourceCentro Nacional de Investigaciones Oncológicas (CNIO)·JournalNature Communications·TypeExperimental study·DateMar 29, 2023
Researchers developed a simple purification method using surfactants to separate hydrophobic DNA nanostructures from aggregates, enabling the construction of artificial cells and complex functions in molecular robots. The purified structures retain their ability to bind lipid vesicle surfaces.
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A team of researchers from Michigan State University has discovered two distinct DNA-PK protein complexes that have different roles in DNA repair. One complex fills in lost information, while the other activates enzymes to remove damaged ends. This finding may lead to new strategies for therapeutic gene editing and cancer diagnostics. ...
SourceMichigan State University·JournalMolecular Cell·DateMar 2, 2023