Articles tagged with Bacterial Rna
Researchers have found that three major classes of antibiotics work by ramping up harmful free radicals in bacteria, making existing antibiotics less effective. This discovery could lead to new classes of antibiotics and improved methods for treating resistant infections.
A recent NASA study used gene sequencing to detect a vast array of bacteria in clean rooms, including newly discovered species. The findings will aid in improving cleaning and sterilization methods to prevent false-positive results in detecting extraterrestrial life.
Researchers used powerful imaging techniques to study the atomic level interactions between bacteria and antibiotics, revealing a key enzyme structure that enables gene expression. The findings provide insights into potential new antibiotic designs that can prevent bacterial resistance.
Researchers reprogram E. coli to detect and follow specific chemical signals, opening new frontiers in environmental cleanup and drug delivery. The custom chemo-navigational system could be used to target diseased cells while sparing healthy ones.
Researchers found that Photorhabdus produces a special phenoloxidase inhibitor to protect itself against an enzyme used by insects' immune systems. This discovery provides conclusive evidence for a gene-for-gene interaction between the bacterium and the insect, shedding light on insect immune systems.
Researchers found that a single gene in symbiotic bacteria determines aphid thermal tolerance. The gene's mutation affects heat-shock protein production, leading to reduced reproduction and survival in hot conditions. This discovery highlights the critical role of symbiotic bacteria in insect ecology.
Researchers created hairpin-shaped RNA molecules that can differentiate between riboswitches in on and off states. These aptamers could help find new antibiotics by binding to the switches of pathogens, blocking essential protein synthesis.
Researchers at EPFL discovered a new metabolic pathway that helps cells survive bacterial pore-forming toxins. The pathway triggers an inflammatory response and lipid metabolism to repair the cell membrane and protect against further damage.
Researchers have discovered a bacteriophage with a structure similar to human rotavirus, providing new information on the formation of viral particles and genetic distinction. This finding sheds light on the evolutionary origins of viruses, which likely share common ancestors across species.
Scientists from the University of Wisconsin-Madison have made a fundamental discovery about RNA synthesis in E. coli, shedding light on how bacteria regulate gene expression. The study found that a specific region within DNA promoters makes contact with RNA polymerase, but not at promoters for genes involved in ribosomal RNA production.
Evolutionary biologist Jianzhi Zhang discovers parallel evolution of pancreatic enzyme RNASE1 in Asian and African colobine monkeys, showing identical amino acid changes despite separate duplication events. The study reveals a division of labor between old and new genes after duplication.
Researchers at UCSD have discovered how bacterial messenger RNA is unfolded to be read by the cell's protein-making machinery. The study reveals essential factors required for this process and provides insights into developing novel antibiotics targeting these vulnerabilities.
Researchers identified a number of cas genes associated with CRISPR clusters, potentially involved in RNA-processing mechanisms. They propose that all CRISPR inserts are derived from viruses or plasmids, transcribed and silenced via Cas proteins.
Researchers found that cryopyrin is activated by bacterial RNA and essential for the immune response against bacteria. This discovery could lead to a better understanding of autoimmune diseases like rheumatoid arthritis and potentially develop new treatments.
Researchers have discovered several new bacterial species associated with bacterial vaginosis (BV), a common infection in women. The study, published in the New England Journal of Medicine, could lead to improved detection and treatment methods.
Researchers have discovered a new function of RNA in the human immune system, which could lead to the development of new treatments for cancer and single-gene genetic diseases. The study found that certain types of RNA are more likely to trigger an immune response due to their chemical modifications.
New research reveals that rifamycin antibiotics work by removing a crucial magnesium ion from bacterial RNA polymerase, rendering the bacteria non-functional. The study's findings may lead to improved versions of these antibiotics to combat existing resistant strains.
Bacteria require a critical number of individuals, called quorum sensing, to engage in activities like bioluminescence and biofilm formation. Research on Vibrio cholerae and other bacteria aims to develop strategies to prevent disease-causing bacteria from becoming virulent.
Researchers at Yale University have identified a key mechanism behind antibiotic resistance in bacteria. By analyzing the structural changes caused by a single nucleotide mutation, they found that this alteration reduces the ability of antibiotics to bind to ribosomes, allowing resistant bacteria to rapidly cause infections.
A recent study by Washington University researchers used a molecular survey to detect Mycobacterium avium in the lungs of nine lifeguards who developed hypersensitivity pneumonitis after exposure to pool water. The bacterium, known for its resistance to disinfection, was found at high levels in air samples taken near the pool.
A new lab technique has identified high levels of pathogens in a hospital therapy pool, with
A large multicohort study of HAART-naive patients found significant reductions in AIDS incidence and opportunistic events, with greater declines for viral etiologies.
Researchers have developed a miniaturized lab that can detect HIV and bacteria in saliva using a portable oral swab kit. The device analyzes samples quickly and accurately, making it useful for rapid response situations such as bioterrorism incidents or emergency room emergencies.
A Yale University study identified a tick gut receptor used by spirochete bacteria to colonize ticks, which the bacteria use to survive. Blocking this receptor disrupts the bacteria's life cycle, opening up new strategies for improving Lyme disease diagnosis and treatment.
Researchers couple bacterial life with theophylline production, which breaks down caffeine slowly in plants. The goal is to create coffee plants low in caffeine using these engineered bacteria.
Researchers at Yale University have identified a cooperative RNA switch in nature, which responds to various target compounds and regulates metabolic processes. This discovery supports the theory of an RNA World, where RNA molecules served a central role in early life.
Researchers found that DksA is crucial for regulating gene expression in bacteria, enabling them to survive and resist antibiotics. By targeting this protein, scientists may develop novel antibacterial drugs that reduce resistance.
Researchers at Rutgers University have discovered a molecule that uniquely blocks a key bacterial enzyme, RNA polymerase, starving it and killing bacteria. The discovery sets the stage for developing novel antibacterial drug designs and could lead to applications beyond drug design.
Researchers have discovered a molecule called ppGpp that plays a crucial role in regulating bacterial gene expression and survival. When amino acid levels are low, ppGpp accumulates and shuts down protein synthesis, allowing the cell to go dormant until conditions improve.
A new transcript-based cloning technique enables scientists to identify specific genes in a matter of months, reducing the process from years. The technique was used to isolate and identify a gene in Medicago truncatula that plays a crucial role in nitrogen fixation.
Cumbre Inc. and University of Wisconsin-Madison researchers have published data on a new class of bacterial RNA polymerase inhibitors with major breakthrough potential, offering a powerful tool to study gene expression mechanisms and developing new antibiotics against bacterial pathogens.
A new class of compounds called CBR703 series inhibit RNA polymerase, a key enzyme in gene expression, and hinder the ability of bacteria to perform crucial catalytic functions. The compounds render RNA polymerase useless by binding to a specific place on the enzyme.
Rockefeller University scientists have discovered how transcription begins in bacteria, a crucial step for developing new antibiotics. The structure of the RNA polymerase holoenzyme reveals a novel protein-protein interaction that regulates transcription initiation.
Researchers at Stanford University have developed nanocircles that can shut down specific genes in living bacteria, paving the way for potential use in genetic therapy. The study demonstrates that nanocircles can act as a Trojan horse to target and inhibit disease-causing genes.
Researchers have discovered a bacterial protein called anti-TRAP (AT) that participates in regulating tryptophan production. The newly discovered protein helps Bacillus bacteria control the production of tryptophan, one of the building blocks of most proteins in humans.
Researchers have discovered a way to link specific microbes to the oxidation of methane in anoxic marine sediments using molecular and stable isotope techniques. This partnership between archaea and sulfate-reducing bacteria extracts energy from methane, removing nearly 80% of the methane in marine sediments.
A Purdue University study reveals that a virus uses six RNAs to create a motor that transports DNA, facilitating the development of nanoscale devices. The research also improves scientists' understanding of how cells transport large molecules through membranes.
Researchers at Johns Hopkins University discovered that RNA- and DNA-binding proteins have the same shape, a configuration of three coils called alpha helices. This similarity suggests that the protein could be an ancient ancestral form of other proteins crucial to embryonic development.
A team of scientists led by Jennifer Doudna solved the 3D structure of a large portion of an RNA enzyme, revealing its ability to trigger cell activity and potentially provide the first method for genetic reproduction. This breakthrough could help design new drugs to fight lethal viruses and repair genetic errors.