Articles tagged with Bacterial Rna
ETH Zurich researchers have created a molecular recording system that writes transcriptional events into DNA, allowing permanent storage and later access. The CRISPR-Cas system records genetic information about pathogens infecting the cell, storing it in a specific stretch of DNA known as a CRISPR array.
A microRNA called miR2111 travels from leaves to roots, downregulating a gene that would hinder root responses to symbiotic bacteria. This finding helps understand the mechanisms of efficient nitrogen-fixing symbiosis and potential ways to exploit it agronomically.
Researchers have identified a naturally occurring antibiotic called kanglemycin A that is effective against Mycobacterium tuberculosis, including drug-resistant strains. The compound maintains its activity by binding to bacterial RNA polymerase and preventing RNA production.
Research at Oregon State University found that schizophrenia patients' blood contains genetic material from a wider range of bacteria and archaea compared to healthy controls. The study suggests that the human microbiome plays a significant role in health and disease.
Researchers discover new proteins involved in atrazine degradation, shedding light on bacterial evolution and adaptation. The study's findings have implications for developing targeted enzymes to contain nitrogen runoff and mitigate algal blooms and animal die-offs.
A new study found that salivary RNA can regulate oral bacteria growth, influencing diseases such as periodontitis. The research discovered a channel of communication between RNA messengers and bacteria in the mouth.
Scientists at FAU and University of Oxford have discovered a regulatory checkpoint in bacterial gene expression that could be used to develop new antibiotics. This finding has the potential to help overcome antibiotic resistance, which kills around 700,000 people worldwide each year.
Artificial antimicrobial peptides, developed by researchers using a computer algorithm, have shown promise in combating drug-resistant bacteria. The most promising candidate, guavanin 2, has been found to be more potent than naturally occurring peptides and effective against Gram-negative bacteria.
A new collaborative project has developed an RNA-based vaccine for protecting plants against diseases and pests, providing a promising environmentally friendly solution. The vaccine triggers RNA interference, which prevents pest gene expression without affecting the plant's own genes.
A recent study published in JCI Insight suggests that analysis of microbial DNA and RNA can predict hospitalizations for patients with cirrhosis with high accuracy. The researchers found that these analyses can identify beneficial bacteria and detect pathogenic bacteria, which are linked to inflammation and infection.
Researchers found that antibiotic use decreases native gut bacteria's ability to compete with C. difficile for nutrients like proline, creating a fertile environment for the bacterium's growth and colonization. This discovery could lead to the development of probiotics and targeted therapies to prevent C. difficile infections.
Wolbachia blocks viral replication in mosquito cells by degrading viral RNA, with XRN1 playing a key role. The bacterium's ability to prevent disease transmission depends on the virus's replication rate.
Researchers at Penn State revealed new insights into the 'magic spot' molecule that controls gene expression in bacteria under stress. The study provides clues about key processes that could be targeted in the search for new antibiotics and contributes to fundamental understanding of bacterial adaptation and survival.
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.
Researchers at the University of Michigan have discovered a new CRISPR-Cas9 protein, NmeCas9, that can edit both DNA and RNA with high precision. This breakthrough could lead to new therapeutic possibilities for diseases caused by genetic mutations in RNA.
A new study from the University of Copenhagen reveals that a garlic compound can destroy important components in bacteria's communication systems, which involve regulatory RNA molecules. This discovery has led to further development of a potential treatment for patients with cystic fibrosis and other chronic infections.
Researchers have found that oral bacteria can induce an overactive immune response in the gut, leading to inflammatory bowel disease. The study identified a specific bacterium, Klebsiella pneumoniae, as a strong inducer of this response.
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 discovered that oyster shells contain unique microbial communities with higher denitrification activities than sediments. This finding has important implications for oyster restoration efforts, which may reduce nutrient levels in coastal waters by leveraging the shell microbiomes' active removal of fixed nitrogen.
Researchers at OIST have identified genetic manipulation tools for B. bacteriovorus, a type of predatory bacteria that can be used as a living antibiotic to treat various infections. The study also explores potential applications in organic food production and industry.
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 found that accurately transcribing DNA overrides DNA repair, with bacteria becoming hundreds of times more efficient at repairing DNA damage when the transcription fidelity factor GreA is absent. This discovery challenges traditional understanding and has significant implications for cancer research and evolution.
A new study sheds light on the connection between gut bacteria and anxiety, finding that a significant number of miRNAs were changed in the brains of microbe-free mice. The researchers suggest that targeting the gut microbiome may be a potential therapeutic approach for psychiatric disorders.
A new study reveals that head-on collisions between protein machines on chromosomes can disrupt DNA replication and increase the frequency of genetic errors. These collisions promote mutations in key genes involved in coping with environmental stresses, which may help bacteria survive hostile environments.
A team at Harvard's Wyss Institute has created genetically encodable RNA nano-devices that can perform an unprecedented 12-input logic operation, enabling cells to analyze complex environments efficiently. These programmable devices may enable the construction of more sophisticated synthetic biological circuits.
The CRISPR-Cas system has discovered a new mechanism to defend against viral invaders by producing a signaling molecule that activates an anti-viral enzyme. This discovery reveals similarities between bacterial and human immune systems.
Researchers at Cornell University and Harvard Medical School have observed the bacterial defense mechanism against invaders, revealing how CRISPR sites store molecular memories of invaders. The study provides structural data to improve CRISPR operations' efficiency and accuracy.
Researchers at the University of Alabama at Birmingham have developed a novel method for one-step protein purification that improves yield, purity, and activity by 10- to 500-fold. The CL7/Im7 affinity chromatography purification scheme overcomes weaknesses of current commercially available systems.
Researchers at Rutgers University have discovered a new antibiotic, pseudouridimycin, effective against both drug-sensitive and drug-resistant bacteria. The compound inhibits bacterial RNA polymerase through a unique mechanism, exhibiting no cross-resistance with existing antibiotics.
Researchers at KFU's Structural Biology Lab have made significant breakthroughs in understanding Staphylococcus ribosomes using cryo-electron microscopy. This discovery holds great promise for developing new treatments against deadly infections, such as pneumonia and septicemia.
Researchers identified a compensatory mechanism in bacteria that can be used as a new therapeutic target against multi-drug resistant bacteria. The study found that the pace of adaptation in multi-drug resistant Escherichia coli strains is faster than for strains with single resistance mutations.
Researchers have discovered a defined architecture of the bacterial expressome, allowing for a better understanding of how bacteria impact human health. This finding may lead to the development of new antibiotics that target bacteria but leave human cells unharmed.
Researchers have developed a highly sensitive diagnostic tool using RNA-targeting CRISPR enzyme for detecting diseases such as Zika virus and antibiotic-resistant bacteria. The new system, called SHERLOCK, can detect single molecules of target RNA or DNA, enabling rapid and affordable diagnosis.
Researchers discovered that anthrax spores stimulate the host immune system by activating a distinct set of immune sensors that don't recognize the active form of Bacillus anthracis. This triggers an unfavorable immune response, hindering the body's fight against the bacterium after germination.
Rutgers scientists determine the structure of tuberculosis drug target Mtb RNA polymerase and discover a new class of compounds, Na-aroyl-N-aryl-phenylalanamides (AAPs), that potently inhibit it. The findings reveal potential for developing improved anti-tuberculosis drugs.
A collaborative study reveals the molecular details of the relationship between Brugia malayi and its endosymbiotic bacteria, Wolbachia. The researchers found that Wolbachia plays a critical role in worm reproduction and survival, making it an essential target for novel drug development.
A study found that patients with metastatic melanoma who responded to PD1 checkpoint inhibitor therapy had a greater diversity of gut bacteria and larger volumes of specific bacteria than non-responders. The researchers also discovered increased immune infiltrates in responders' tumors, correlated to the abundance of a specific bacterium.
Researchers at the University of Maryland School of Medicine have identified a new pathway that recognizes three distinct bacteria, including Lyme disease agent Borrelia burgdorferi. By targeting key molecules, scientists may now try to make ticks less vulnerable to infection by these microbes.
Santa Fe Institute researchers investigated the lower bound of energy required for life and found that smallest species are most protein dense. As cell size increases, RNA concentrations grow, leading to a decrease in protein density, with larger cells eventually reaching an energy limit.
Scientists at Rockefeller University have developed a detailed analysis of RNA polymerase, crucial to all cells, which is targeted by the antibiotic rifampicin. The study identifies potential strategies for new drugs that can effectively combat resistant TB strains.
Dr. Scarlett Shell is awarded a $1.1 million NSF CAREER Award to investigate the molecular mechanisms of bacteria's stress response, which could lead to new treatments for infectious diseases like tuberculosis. Her work aims to enrich educational experiences for students and inspire careers in science.
Researchers at UMass Medical School and the University of Toronto identify naturally-occurring proteins that inhibit Cas9 enzyme, providing greater control over genome edits. This discovery bolsters promise for therapeutic applications and better control over editing.
Scientists have isolated three families of proteins that can turn off CRISPR-Cas9 systems specifically used for gene editing. This discovery offers a new strategy to prevent unintended changes in the genome, making gene editing more precise and controlled.
A new study from the Woods Hole Oceanographic Institution explains that bacteria break down dissolved organic matter in seawater, creating methane as a byproduct. The researchers found that microbes use polysaccharides to access phosphorus, a rare nutrient in seawater, which is essential for their survival.
A CSIC study is using genetic sequencing to identify new bacterial regulators that can be used to design compounds to manipulate bacterial processes. This research aims to develop new antimicrobials to fight against infections.
Scientists at University of Würzburg have discovered a third RNA binding protein, ProQ, which controls gene activity and allows bacteria to quickly adapt to changing conditions. ProQ binds to nearly 100 regulatory RNAs in Salmonella enterica, influencing their activities.
Researchers have developed a new approach to study the gut microbiome, revealing that diabetes patients and healthy individuals have similar bacterial species composition but differing metabolic activity. The study discovered that changes in gut bacteria metabolism can exacerbate type 1 diabetes by affecting vitamin levels.
A new diagnostic test analyzes ribonucleic acid (RNA) expression in the bloodstream to distinguish bacterial infections from other causes of fever in infants up to 2 months old. The test has shown high sensitivity and specificity, potentially reducing painful exams, unnecessary antibiotic treatments, and hospitalizations.
A new study reveals that the evolution of gut bacteria in humans and hominids parallels ape evolution, suggesting a long-term co-evolution between hosts and microbes. The research sheds light on the importance of the human microbiome and its connection to our evolutionary history.
Researchers from Institut Pasteur and Université catholique de Louvain identify genetic and metabolic mechanisms underlying the therapeutic action of a bacteriophage. The study reveals that RNA metabolism plays a crucial role in the infection strategy of the bacteriophage, with control mechanisms involving small RNA and antisense RNA.
A recent study reveals that bacteriophage PAK_P3 degrades bacterial RNAs and scavenges pyrimidine nucleotides to replicate. This finding highlights the prominent role of RNA metabolism in phage infection, offering a new understanding of phage therapy's potential.
Scientists at CNIC discover how immune cells adapt to live bacteria through mitochondrial metabolism changes. The study found that detection of live bacteria triggers a change in the mitochondrial electron transport chain, enabling macrophages to redirect metabolic routes for efficient energy production.
Scientists mapped all RNA structures of a diarrheal pathogen at once, identifying temperature-responsive structures that sense temperature changes. These 'RNA thermometers' can reveal gene sequences and proteins controlling disease progression.
A CRISPR system targeting RNA has been developed and tested, allowing for precise editing of single-stranded RNA. This breakthrough holds implications for various biological applications, including RNA modification and regulation.
Researchers have characterized a new CRISPR system that targets RNA, enabling temporary changes to be made with greater specificity. This approach has the potential to accelerate progress in understanding, treating, and preventing disease by manipulating gene function more broadly.
Researchers at Ruhr-University Bochum successfully taught bacteria to swim by combining various RNA modules in a new way. The team used riboswitches and RNA thermometers to control the bacterium's behavior and responded to temperature and metabolic products.
Scientists discovered that Cpf1, a CRISPR-associated enzyme, can cut both RNA and DNA. This dual activity enables efficient targeting of multiple sites in parallel, or multiplexing, for sequence-specific genome engineering.
Bacteria's ability to form membrane vesicles and biofilms, crucial for disease-causing abilities and antibiotic resistance, has been linked to explosive cell lysis. The study reveals that a previously unknown enzyme disrupts the cell wall, releasing essential cellular components.
A new study published in PLOS Biology reveals a vast diversity of RNA viruses that infect bacteria, with over 122 new types identified. This discovery opens up new avenues for understanding the ecological dynamics between bacteriophages and bacteria, and potentially developing new strategies to combat antibiotic-resistant infections.
Researchers have identified 122 new types of RNA bacteriophages in diverse ecological niches, providing an opportunity to define their contributions to ecology and explore them as novel tools. The study suggests that RNA bacteriophages likely play a much larger role in shaping the bacterial makeup of worldwide habitats than previously ...