Articles tagged with Bacterial Dna
Scientists have discovered that the CRISPR-Cas9 protein can also cut RNA, expanding its potential uses in gene editing and virus detection. This breakthrough could lead to new treatments for genetic diseases and improved food and energy crops.
Researchers have discovered a fluorescent dye that allows them to observe the life cycle of bacteria in real time, enabling the study of microorganisms in their natural environment. This method will help locate halophiles, ancient salt-loving organisms that thrive in extreme conditions and may hold clues to the origin of life on Earth.
Researchers identified a strain of Staphylococcus epidermidis that produces a chemical compound 6-N-hydroxyaminopurine (6-HAP), which inhibits the growth of some cancers. In mice exposed to UV rays, those with 6-HAP-producing bacteria had significantly reduced skin tumors.
Research explores how gut bacteria respond to common changes in their habitat, revealing that bacterial species can go extinct when environments are altered even slightly. This understanding could lead to the design of targeted probiotics and therapies to make gut microbes more resilient.
Researchers used cryo-electron microscopy to discover the structure of an enzyme critical for maintaining adequate DNA building blocks in human cells. The human version differs from its bacterial counterpart, suggesting potential for designing antibiotics that selectively block the bacterial enzyme.
A computational model predicts which organisms can engage in phagocytosis, a process vital for immune defenses and nutrient uptake. The model's findings suggest that phagocytosis may have arisen after the combination of archaeal and bacterial components in eukaryotic cells.
Researchers have uncovered the evolutionary origin of termite gut microbiomes, finding a mix of both vertical and horizontal transmission. The study, which analyzed 211 bacterial lineages from 94 termite species across four continents, reveals that termites acquire their gut bacteria from both parents and other termite colonies.
Researchers have developed a new method, DropSynth, to synthesize thousands of genes at once, reducing the cost from $50-$100 to $2 per gene. This breakthrough enables scientists to test hypotheses and analyze large numbers of cells with ease.
A study at Columbia University Irving Medical Center found that far-UVC light can efficiently kill aerosolized influenza viruses in the air without harming human tissues. The use of overhead far-UVC light in hospitals, schools, and other public spaces could provide a powerful check on seasonal influenza epidemics.
Researchers discovered that DNA acts as an 'air-in-a-balloon' mechanism to inflate bacterial cells, beyond its genetic information role. This finding has implications for understanding cell formation and growth, potentially revealing insights into the origins of cellular life.
Research highlights graphene oxide's exceptional antibacterial properties, which differ from traditional antibiotics. The review emphasizes the importance of understanding structure-activity relationships and molecular initiating events to improve biosafety.
Scientists at the University of Freiburg discovered RNase E as a crucial enzyme in CRISPR/Cas systems, enabling correct gene expression and immune defense. The findings suggest stronger interaction between CRISPR/Cas systems and host organisms, increasing potential for its applications.
Researchers have developed a novel technology platform to genetically modify phage genomes systematically, providing additional functionality. The new phage workbench allows for the creation of custom bacteriophages with various functions, overcoming constraints associated with naturally occurring phages.
Researchers found that Bacteroides fragilis and Escherichia coli bacteria work together to create a microenvironment that induces chronic inflammation and DNA damage, supporting tumor formation. This discovery could lead to more effective screening and prevention strategies for colon cancer.
A bacterial duo has been identified as a potential contributor to colon cancer risk. Escherichia Coli and Bacteroides fragilis alter the gut microenvironment by depleting mucus and inducing inflammation, facilitating E.coli colonization.
A new study uses computer-based models to identify mechanisms used by bacterial spores to evade extreme temperatures, chemicals, and radiation. The researchers determined the optimal conditions for killing harmful bacteria, revealing a unique 'freeze-dried' state that protects the DNA machinery.
Researchers found 457 novel phage sequences in bacterial genomes from the female urinary microbiome, suggesting a common set of phages that reside in the bladder. The study also indicates that phage may contribute to urinary health and offers potential alternative treatment for urinary tract infections.
A study analyzed the DNA of a heat-loving microbe that uses ammonia for energy production and found highly mobile genetic elements and frequent DNA exchange with other organisms.
Researchers have identified 10 previously unknown bacterial immune defense mechanisms, which may provide new insights into the evolution of human immunity. These systems include novel Toll-Interleukin Receptor domains and genes 'borrowed' from non-defensive bacterial systems.
A new family of viruses, Autolykiviridae, has been discovered that kill more marine bacteria than previously known tailed viruses. These viruses may also be present in the human gut and could play a role in maintaining the ocean's ecology and influencing human health.
A recent study has shed new light on the biology of M. leprae, revealing genes associated with antibiotic resistance and potentially leading to new treatments. The research also suggests that leprosy originated in the Far East, challenging long-held assumptions about its origins.
A team of researchers has compiled a 'most wanted' list of around 500 key bacterial species that are both common and abundant worldwide. These dominant bacteria can now be targeted for future study to improve soil health and fertility.
Researchers use a new method called magic pools to study hundreds of transposon systems in parallel, speeding up the process of identifying functional transposons. This approach enables scientists to test multiple genetic variants simultaneously, reducing the trial and error process and accelerating the development of new genetic tools.
Researchers at Aarhus University have determined a fundamental mechanism by which staphylococci bacteria handle stress when exposed to antibiotics. The discovery reveals that bacteria produce an enzyme capable of modifying DNA building blocks into signal molecules, allowing them to survive antibiotic treatment.
A team of scientists discovered that beneficial viruses can integrate into bacteria carrying restriction-modification systems, which protect them from lethal infections. The study showed that these systems offer a temporary respite, allowing bacterial populations to grow and increasing the chances of acquiring beneficial viruses.
Researchers at Imperial College London have discovered how bacteria evolved molecular motors to optimize their swimming. By building a 'family tree' of bacterial motors using 3D imaging and DNA analysis, the team found that sophisticated species had more stators than primitive species, with some having as many as 17 stators.
The study reveals that archaea use the same mechanism to regulate cell size as bacteria and budding yeast, with some variability in precision. The researchers found that Halobacterium salinarum controls its size by adding a constant volume between two events in the cell cycle.
A new method developed by Mount Sinai and Sema4 researchers accurately identifies individual microbial species and strains in communities, providing a more comprehensive approach to microbiome analysis. The technique uses DNA methylation patterns as natural barcodes to discriminate between closely related species.
MIT researchers discovered a way to make bacteria more vulnerable to quinolones, enabling existing drugs to kill bacteria that cause chronic infections. Delivering quinolones along with glucose and fumarate can eliminate several types of bacteria, including Pseudomonas aeruginosa and Staphylococcus aureus.
Researchers at Caltech have created bacteria that can produce chemical compounds with boron-carbon bonds, a breakthrough in synthetic biology. The findings could lead to more economical and environmentally friendly ways to manufacture pharmaceuticals and other products.
Researchers at Columbia University Irving Medical Center have developed a microscopic data recorder using CRISPR-Cas technology, allowing bacteria to monitor their surroundings and record temporal changes. The system has proven its ability to handle multiple signals and record for days.
A study published in PLOS ONE found that Camponotini ant species have distinct microbiomes, with some stages having unique bacterial populations. This suggests that the microbiome may play a role in shaping the ant's biology and adaptation to its environment.
The University of Texas at San Antonio researchers aim to identify specific DNA markers that indicate fecal contamination, evaluate its level, and locate its origin. The project will also educate the public on ways to keep local water resources safe from contamination.
A leaf-eating beetle has evolved a symbiotic relationship with bacteria that allows it to break down pectin, a plant cell wall component. The bacterium, which has a tiny genome, has the power to degrade pectin, enabling the beetle's digestive system to access nutrients.
Researchers at the University of Birmingham identified two previously unknown mechanisms that bacteria use to protect themselves from antibiotics. The discovery provides new insights into how bacteria develop resistance and could lead to the development of new drugs to combat bacterial infections.
A team of scientists has visualized the dynamics of the CRISPR-Cas9 complex using high-speed atomic force microscopy. The study provides unprecedented insights into the CRISPR-Cas9-mediated DNA cleavage mechanism, highlighting its potential for gene editing.
Researchers studied microbial communities in permafrost sedimentary rocks under low temperature and pressure conditions similar to those on Mars. They found that these communities showed high resistance to simulated Martian environment, with some bacteria surviving even after doses of ionizing radiation exceeding 80 kGy.
A team of scientists discovered that a non-pathogenic strain of E. coli helps the lining of a newborn's gut prepare for the surge of other bacteria in their lives, leading to better resistance to inflammation and damage.
A team of CSIC scientists has designed new molecules capable of destroying resistance to conventional antibiotics in bacteria. By targeting the cellular mechanisms that lead to antibiotic resistance, these molecules can break down the proteins responsible for making bacteria resistant to multiple drugs.
A large Danish study found that whole grains reduce inflammation in the body and lead to weight loss in overweight adults. The study suggests that choosing whole grains over refined grains can have numerous health benefits, particularly for individuals at risk of cardiovascular disease or type 2 diabetes.
A recent study by scientists at the University of Exeter found that mixing diverse microorganisms from different sources can increase productivity and stability in microbial communities. This phenomenon was observed when methane-producing communities were combined, leading to a higher biogas yield.
Researchers at Chalmers University of Technology and the University of Gothenburg have discovered 76 new types of antibiotic resistance genes. These genes can provide bacteria with the ability to degrade carbapenems, a powerful class of antibiotics.
This study investigates the early stages of antibacterial damage caused by Silver and Copper-based nanoparticles on Gram-negative Pseudomonas aeruginosa. TEM and STEM-HAADF techniques reveal changes in bacterial structure, including adhesion, penetration, and damage to cellular components.
Bacteria self-organize to form a golden shell around their colony using gold nanoparticles, creating a functional pressure sensor. The researchers controlled the size and shape of the device by altering the growth environment, demonstrating a proof-of-principle for fabricating structured materials.
Researchers used computer modeling to understand how E. coli bacteria can unlink tangled DNA by a local reconnection process. The study found that undoing one link at a time is the preferred route to separate the circles of DNA, with implications for other complex systems in nature.
Scientists have developed a method to detect antibiotic susceptibility for urinary tract infections in under 30 minutes. This breakthrough could enable patients to receive effective treatments during a single clinical visit.
Scientists evaluated metagenomics software using international competition benchmarks to assemble, classify, and analyze complex pools of bacterial DNA. The results showed that different algorithms perform better in various contexts, highlighting the need for researchers to choose software based on specific questions.
Researchers at the University of Maryland discovered two group A Streptococcus genes, scfA and scfB, involved in invasive skin infections. These genes may serve as promising clinical targets for therapeutics.
A theoretical physicist proposes an alternative approach to species classification by considering the dynamics of microbial communities as a whole. This framework may help researchers better understand complex biological systems and their role in human diseases.
Researchers found 132 antibiotic-resistant genes in commercially available fishmeal, which can boost the growth of harmful bacteria in marine farm sediment. This discovery suggests that fishmeal could be a reservoir for these genes, promoting their distribution globally.
Researchers discovered that cGAS forms a ladder-like complex with cytoplasmic DNA to detect infections. The length of the DNA is critical for this process, and only longer DNA strands activate the innate immune system.
A breakthrough in gene synthesis has been achieved using a chemical method that overcomes limitations of existing methods by incorporating epigenetic information into genes. This new approach, click DNA ligation, enables rapid and efficient assembly of modified DNA fragments into functional genes.
Scientists developed ELM-seq technique to scan DNA sequences and find optimal 'control dials' that regulate gene activity. The study revealed importance of RNA message's first letter and three-dimensional structure in determining gene transcription and translation.
Scientists have identified an early predictor of Inflammatory Bowel Disease (IBD) through a groundbreaking collaboration. By analyzing the microbiome, researchers found parallel changes in gut bacteria that may indicate disease onset.
Researchers found 132 antibiotic resistance genes in commercially available fishmeal, which can potentially confer resistance to common antibiotics. The application of fishmeal to marine farm sediment samples increased the abundance and diversity of antibiotic resistance genes, boosting potential human pathogenic bacteria.
Researchers have engineered gut bacteria to produce molecules that mimic human ligands, binding to receptors involved in glucose and appetite regulation. This breakthrough may lead to novel therapeutic approaches for diseases such as diabetes and obesity.
Researchers estimate 2 billion species, with bacteria dominating the 'Pie of Life'. This new estimate incorporates DNA sequence data and parasite-host associations to arrive at a higher number than previous estimates.
Researchers have found that Helicobacter pylori infection increases stem cell turnover in the stomach, leading to increased cell division and cancer risk. The bacteria sends a signal to stem cells, putting them into overdrive, which may explain why chronic infections with H. pylori are linked to stomach cancer.
Researchers used Next Generation Sequencing to investigate bacterial communities in long-term no-till and conventional tillage plots. The study found dynamic microbial communities influenced by sample location, with different bacteria dominating the rhizosphere and bulk soils.
Researchers found that the bacteria communities in the National Mall's soil did not change significantly before and after the renovation. The study highlights the importance of understanding how changes in the soil microbiome can impact plant productivity and health.