Articles tagged with Genetic Structure
A new genetic study found that domestic pig maternal lineages accelerated genetic turnover in wild boar populations after the Fukushima nuclear accident. This mechanism, likely occurring in other regions where feral pigs and wild boars interbreed, has practical implications for managing invasive species.
Research from Radboud University Medical Center and colleagues demonstrates the value of targeted tumor analysis of DNA in colorectal polyps. This study provides valuable insights into genetic predispositions, including APC mutational mosaicism and BRAF gene mutations.
The study created a critical framework for understanding the architecture of the genome and its association with gene function in cells. The 4DN Consortium integrated data from over a dozen techniques to compile an extensive catalogue of looping interactions between genes and regulatory elements.
Researchers have discovered a new class of BRCA1 mutations that can be targeted by HSP90 inhibitors, potentially improving treatment outcomes for patients with breast cancer. The study found that these mutations are more resistant to PARP inhibitor treatment but can be overcome with low-dose HSP90 inhibition.
A study led by SickKids scientists discovered a previously overlooked layer of genetic variation that could help explain individual differences in disease risk and treatment response. The researchers found that subtle changes in short tandem repeats can impact gene function, revealing new insights into neurodevelopmental conditions.
A study by The Hospital for Sick Children reveals a previously overlooked layer of genetic variation in short tandem repeats (STRs) that can influence gene regulation and shape disease risk. This discovery may inform future research and precision therapeutic development in support of Precision Child Health.
Researchers at UMass Amherst have developed a new tool, iConRNA, that provides an unrivaled look inside cells and can help solve the mystery of how devastating diseases develop. The tool resolves the balance of physical driving forces of phase separation and predicts how this balance is tuned under different cellular situations.
Scientists have developed a DNA nanospring to measure the force of protein motors like KIF1A, which can lead to improved diagnosis and treatment of diseases. The technique uses fluorescent imaging to detect the stretching of the DNA nanospring, allowing researchers to accurately measure the motor's power.
Researchers at Stowers Institute for Medical Research have identified the precise location where human chromosomes break and recombine to form Robertsonian chromosomes. The study reveals that repetitive DNA sequences play a central role in genome organization and evolution, explaining how these rearrangements form and remain stable.
A new AI tool developed by University of Missouri researchers can predict the 3D shape of chromosomes inside individual cells, providing a new view of how genes work. The tool helps identify unique differences in chromosome folding between cells, which controls gene activity and can lead to diseases like cancer.
Researchers discovered that CsrA gathers in droplet-like structures inside cells to control bacterial gene activation. These compartments help bacteria adapt to environments and switch between harmless and virulent states.
Researchers believe that post-treatment Lyme disease (PTLD) is caused by the body's response to remnants of the Borrelia burgdorferi cell wall, which persists in the liver. The unique structural properties of this peptidoglycan molecule promote its persistence and may lead to a stronger immune response in some individuals.
Researchers developed a novel protein, LSUBP, to enhance uranium extraction from seawater. The engineered protein achieves high adsorption capacity, offering a promising new material for effective uranium extraction.
Research reveals DHX36 plays a crucial role in normal chromatin architecture and rRNA homeostasis during oocyte growth. DHX36 deficiency impairs meiotic maturation, post-fertilization embryonic development, and disrupts ribosome assembly.
The Extant Life Volumetric Imaging System (ELVIS) will test a new holographic microscope on the International Space Station to analyze the adaptability and resilience of microorganisms. The system aims to reveal how life might persist on distant moons and planets, significantly enhancing our search for life outside Earth.
Researchers at MIT have discovered that a genetic variant can lead to defects in transfer RNA molecules, causing embryonic face cells to fail to fuse properly. This study sheds light on the molecular mechanisms underlying cleft lip and cleft palate formation.
Researchers from ICTER have determined the 3D structure of RBP3, a key molecule in the visual cycle, shedding light on its role in retinal diseases such as diabetic retinopathy. The study reveals conformational changes upon binding to ligands, providing new insights into its functional mechanisms.
Researchers at the University of Gothenburg have discovered a molecule that helps more mitochondria function properly, improving energy production in cells from patients with POLG mutations. This breakthrough paves the way for a new treatment strategy and may have broader therapeutic use for other mitochondrial diseases.
The study reveals conserved neural patterning mechanisms in mammalian hypothalamus development, tracing how brain cells emerge from neural progenitors during growth. The researchers identified four adaptive evolutionary divergences in human neurons, including a unique subtype and enhanced neuromodulation.
Researchers found that full-genome differences between rotavirus strains influence vaccine effectiveness, highlighting the need for a broader approach to vaccine design. The study's results suggest that vaccines should be designed based on the whole genome of circulating strains, rather than just two surface proteins.
Researchers used cryo-electron microscopy to visualize the dynamic motion of a human chromatin remodeler in action, capturing 13 distinct structures that reveal the full picture of nucleosome sliding. This comprehensive view sheds light on how chromatin remodeling affects gene access and expression.
Scientists have discovered that osteocytes undergo structural and functional changes with age, impairing their ability to maintain bone strength. This discovery could lead to new treatments for osteoporosis and age-related bone loss by targeting senescent cells.
The study analyzed microbial communities on the China Space Station, revealing common characteristics of environmental microorganisms during long-term human residence. The findings provide a baseline for microbial safety measures and advance research consensus on microbial adaptation capabilities in space.
Researchers have identified a type of immune cell that produces extracellular matrix, strengthening the skin's defensive function and maintaining its integrity. This discovery may lead to new strategies for treating skin diseases, inflammation, diabetes, and age-related conditions.
The study found that tunneling nanotube-like structures connect cells in the heart, enabling long-distance intercellular communication essential for heart formation. Disruption of these structures resulted in impaired ventricular wall morphogenesis and defective myocardial growth.
Researchers have uncovered two major genes responsible for sorghum's double-grain spikelet, leading to a significant increase in grain number and crop yield. The study found that the DG1 gene regulates floret meristem formation and differentiation, restoring fertility to the lower floret and resulting in the double-grain trait.
Researchers used CRISPR to cut a single gene from cancer cells of head and neck tumors, resulting in the elimination of 50% of the tumors after 84 days. This groundbreaking study demonstrates that some genes are essential for cancer cell survival, making them excellent targets for CRISPR therapy.
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 Weill Cornell Medicine have discovered a precise mechanism by which an ion channel regulates its function, providing insights into fundamental biology and potential new treatments for diseases. The study identified a 'ball-and-chain' structure that plugs the channel, opening the way to modulate ion channel activity.
Two landmark studies show that the 3D genome structure coordinates thousands of genes to form a sperm cell. The work identifies two proteins that establish cellular memory and set up a new structure that cements the cell's future fate as a sperm cell.
Researchers developed a deep-learning framework, STAIG, to automatically map distinct genetic activity to tissue regions without manual alignment. The study demonstrates superior performance across various conditions, showcasing its potential for cancer research and understanding complex biological systems.
A new study found that Neanderthals experienced a drastic loss of genetic variation approximately 110,000 years ago, leading to their eventual extinction. The research measured the morphological diversity in semicircular canals, which revealed lower diversity in classic Neanderthals compared to pre-Neanderthals and early Neanderthals.
A new integrated 3D imaging approach has revealed exquisite detail of the virus assembly process used by herpes simplex virus during replication. The research identified previously unknown functions of HSV-1 structural proteins and provided insights into the unmutated gene's usual role in viral assembly.
Researchers discovered a novel mechanism of intercellular communication through mRNA transfer between stem cells, allowing for biologically significant effects such as cell fate conversion and pluripotent state maintenance.
Researchers at The Jackson Laboratory have created an atlas of how healthy breast tissue ages, revealing key cellular and molecular changes that may contribute to breast cancer development. The study found that epithelial cells lose their job descriptions, becoming more prone to malignancy, while stromal cells lose their specialized id...
Researchers from Nagoya Institute of Technology have shed light on the mechanisms of bacterial flagellar motors, which propel bacteria through fluids. The study used CryoEM to capture high-resolution images of stator complexes and identified key molecular cavities for sodium ions.
Two comprehensive datasets from the Gabriella Miller Kids First Pediatric Research Program explore childhood cancers and congenital disorders. The new datasets aim to identify genetic causes and links between these diseases in children, ultimately supporting the development of improved treatments.
Researchers at U of T have developed a new platform called smol-seq that uses DNA sequencing to detect metabolites. This method enables the analysis of hundreds of metabolites simultaneously, making it faster and more precise than current methods.
Researchers use generative AI to predict chromatin structures in single cells, overcoming limitations of existing experimental methods. The technique can generate thousands of structure predictions in minutes, enabling faster study of how 3D genome organization affects gene expression.
A deficiency of TLE6 protein, associated with female infertility, was also linked to abnormal sperm morphology and reduced motility in male mice. The study suggests that TLE6 plays a crucial role in energy production in sperm cells.
The KAIST research team developed a highly stretchable microelectrode array to monitor organoids' functions, enabling real-time analysis of their states. The technology showed promise in high-throughput drug screening applications, revealing changes in signal characteristics according to size and identifying potential drug interactions.
Two non-retinoid compounds were identified that improve cell surface expression of rhodopsin in 36 genetic subtypes of retinitis pigmentosa and protect against retinal degeneration in mice with the disease. The treatment showed improved overall retina health and function, prolonging photoreceptor survival.
Researchers developed AI-driven therapeutic platform mimicking viral structures to deliver therapeutic genes to target cells. The innovative approach achieved precise symmetrical structures and effectively delivered payloads, paving the way for breakthroughs in gene therapies and next-generation vaccines.
Dr. Gail Cornwall is investigating the structure of the brain extracellular matrix, a network of proteins and polysaccharides found in the space between neurons and glia. Her research aims to identify novel structural elements and mechanisms that enable brain plasticity and sex-specific responses.
Researchers from the University of Pennsylvania School of Engineering and Applied Science have discovered a previously unreported enzyme that catalyzes the creation of cyclopentachromone-containing compounds. This breakthrough could potentially lead to the development of new pharmaceuticals for treating cancer and inflammation.
A pioneering AI model has been developed to understand the genetic 'language' of plants, allowing for precise predictions about RNA functions and identification of functional patterns. This breakthrough has significant implications for crop improvement and the next generation of AI-based gene design.
Scientists discover that pregnant and nursing women's intestines undergo significant changes, doubling their surface area and reorganizing villi structure. This adaptation is crucial for the health of babies and may have long-term metabolic consequences.
Researchers have shed new light on gene expression by visualizing ribosomes in unprecedented detail. The study reveals a molecular mechanism for mRNA delivery to the ribosome, advancing our understanding of gene expression at the molecular level.
Researchers identify caveolae's role in protecting adipocytes from rupture and inflammation; this discovery opens new avenues for treating metabolic diseases like obesity. The study highlights the importance of the caveolin-1 protein in maintaining cellular integrity.
A study has identified a gene called MdTCP11 that controls the growth of compact apple trees, also known as spur-type varieties. These trees exhibit increased fruit yield and require less pruning, making them ideal for modern orchards.
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.
A team of researchers analyzed historical marking data from the Discovery Marking Program to investigate Antarctic blue whale population structure. They found frequent mixing among ocean basins, indicating a single circumpolar population. This study provides valuable insights into the conservation of this endangered species.
New research links ancient Jomon hunter-gatherer genetic signature to higher body mass index (BMI) among individuals in modern Japan. The study found strong support for the tripartite ancestry model, suggesting a significant influence of Jomon ancestry on BMI across populations.
A new mathematical model of prostate cancer has been developed, revealing key findings on genetic changes and tumour growth. The study shows that strong genetic changes are necessary for aggressive tumours to develop early in the course of tumour development.
Researchers have generated a topological map of the human genome, shedding light on how chromosomes spatially interact and communicate with each other. The study identified 61 specific regions that consistently interact across different cell types, helping organize the overall structure of the genome.
A team of biologists at UT Arlington has discovered a new species of gecko, Pseudogonatodes fuscofortunatus, with distinct skeletal features and genetic data. The discovery highlights the unique characteristics of this tiny lizard, found in the Paria Peninsula of Venezuela.
Iowa State researchers discovered a surprising chromatin arrangement in two species of turtles, which may shed light on the evolution of vertebrate genomes. The study's findings could have potential biomedical applications, such as treating strokes or cryogenic preservation of human tissues.
A new mechanism has been found by which tumor cells escape the immune system, involving a protein called IRGQ. Studies have shown that suppressing IRGQ can trigger a stronger immune response against cancer cells, leading to improved survival rates in liver cancer patients.
Researchers found that plants have multiple enzymes for adding methyl groups to DNA, allowing them to override genetic instructions. The study reveals the evolutionary history of these enzymes and their unique structures, providing insights into plant resilience to environmental changes.
Researchers discovered Werner syndrome gene WRN plays a crucial role in maintaining constitutive heterochromatin structure, essential for DNA stability. Loss of WRN function disrupts protein interactions, potentially accelerating aging due to cellular disorganization.