Articles tagged with Bacterial Proteins
A team of researchers at the University of Oklahoma has made a groundbreaking discovery in overcoming antimicrobial resistance by developing a new class of molecules that inhibit efflux pumps. These inhibitors work as 'molecular wedges' targeting the area between bacterial cell membranes, increasing the effectiveness of antibiotics.
Researchers at the University of Copenhagen have discovered how a bacterium called Vibrio alginolyticus moves using sodium ions, which could lead to new targets for antibiotics. The study provides insights into the flagellum's movement and may help develop novel antibiotics to combat antibiotic resistance.
A new study found that individuals vaccinated with the newer pertussis vaccine show similar immune responses to antigens present and absent from the vaccine, suggesting that asymptomatic infections drive T cell response. This could lead to the spread of the bacteria to vulnerable populations.
Researchers detail structure and mechanism of short Argonaute protein, sparking hopes for therapeutic applications. The discovery may lead to engineering proteins that can detect threats or trigger cell death in healthy cells.
Researchers at Massachusetts General Hospital discovered a critical protein, NLRP11, that alerts the body to bacterial infections and initiates an effective immune response. This finding may lead to improved 'humanized' mouse models of infections and diseases involving the immune system.
Scientists at Tokyo Institute of Technology have engineered protein crystals in bacteria to produce hybrid solid catalysts for artificial photosynthesis. These catalysts exhibit high activity and stability, with the potential to convert CO2 into formate upon exposure to light.
Researchers at MIT have developed a novel sensor that can detect immune molecule CXCL12, which plays a crucial role in several human diseases including cancer. The device uses receptor proteins found in cell membranes, making it a potential tool for early screening of hard-to-diagnose cancers.
Bacteria can regulate nitrogen fixation through a protein called NifL, which changes shape in response to oxygen and energy levels. This discovery could lead to new ways to engineer bacteria and biofertilizers, improving crop yields in poor soils.
Researchers discovered a central regulator, DipM, controlling multiple autolysins and promoting cell constriction in Caulobacter crescentus. The study reveals DipM's role in coordinating bacterial cell wall remodeling and division processes.
A novel stress signalling system has been discovered by SMART researchers, enabling bacteria cells to adapt and survive against the immune system and certain antibiotics. The breakthrough discovery of RlmN as a stress sensor may lead to the development of new therapies to combat antimicrobial resistance.
A scorpionfish protein has been found to effectively kill antibiotic-resistant bacteria from patients with cystic fibrosis, escaping an immune response that renders the human version of the protein ineffective. This discovery may provide new therapeutic options for treating chronic bacterial infections in people with cystic fibrosis.
The study of ToxR's protein structure bound to DNA has revealed how it triggers cholera toxin production. The research provides insights into the molecular mechanism behind Vibrio cholerae's virulence, shedding light on potential treatments for this disease.
Researchers at Hokkaido University unveil unprecedented carrier protein-mediated ring-forming step in actinopyridazone biosynthesis. The dihydropyridazinone ring is formed through a novel machinery involving Apy3, Apy4, and Apy6 proteins.
Researchers discovered that extracellular cytochrome nanowires are widespread in prokaryotic microbes, including both bacteria and archaea. The findings suggest that these nanowires, composed of a long chain of cytochrome proteins, play a crucial role in microbial metabolism by facilitating efficient electron transfer.
Researchers found that viruses can insert genes into bacteria to help them adapt and survive in nutrient-depleted man-made environments. The study also identified novel immune systems against viruses in bacteria and detected antibiotic resistance genes in viruses on human skin and surfaces.
A study published in Cellular Immunology reveals that type 1 interferons impair the metabolic response to Mycobacterium tuberculosis, making patients with chronic TB more susceptible to infections. The research identifies these cytokines as a potential target for developing new treatments.
A new study reveals that pathogenic bacteria fuel their growth by consuming sialic acid, a key component of the protective intestinal mucus layer. The findings suggest a potential treatment target for intestinal bacterial infections and chronic diseases linked to gut bacteria, including IBD and celiac disease.
Researchers found that disordered organization of proteins boosts energy transfer efficiency, allowing nearly every photon to generate an electron. This finding could lead to better understanding of photosynthesis and potential applications in artificial systems.
Researchers at Tel Aviv University have developed a novel approach to fight cancer by inducing cancer cells to produce a toxic protein using mRNA molecules. The treatment was successful in eliminating 44-60% of cancer cells in animal models, with no damage to healthy cells.
Researchers discovered a symbiotic relationship between diatom Hemiaulus hauckii and cyanobacterium Richelia euintracellularis, with the diatom supplying reduced organic compounds to support nitrogen fixation. The study found that proteins from the endosymbiont play a crucial role in molecule transport across cell membranes.
The researchers have demonstrated significant improvements for chip-based sensing devices that can detect or analyze substances across widely varying concentrations. They developed signal-processing techniques that enable seamless fluorescence detection of a mixture of nanobeads in concentrations across eight orders of magnitude.
Researchers at the University of São Paulo identified a protein in Amblyomma ticks essential to their survival while feeding, making it a promising target for developing a vaccine. The study found that silencing gene expression of an inhibitor of apoptosis protein reduced bacterial proliferation and made ticks more resistant to infection.
Researchers found that centenarians have a diverse gut virome with high microbial diversity associated with a healthy gut microbiome. The study suggests that intestinal bacteria and bacterial viruses may work together to promote healthy lifespan.
Researchers discovered two new psychrophilic species of bacteria with cold-adapted enzymes, which can be used in biotechnology to produce refrigerated foods, improve detergent quality, and remove pollutants from cold environments. The study was conducted in collaboration with Uruguayan scientists and supported by FAPESP.
A new study reveals that Salmonella uses a two-pronged approach to protect itself within the host's defense mechanisms, involving protein SopB. By altering phosphoinositide dynamics and preventing lysosome production, SopB allows the bacteria to survive inside macrophages.
A team from the University of Tsukuba has discovered characteristics of proteins in bacteria that convey antibiotic resistance, providing insights into their function and role. These proteins, known as ARE-ABCFs, work in synergy with other resistance mechanisms to convey extremely high levels of antibiotic resistance.
Scientists have rebuilt the complex nanomachine in the laboratory that starts autophagy, revealing its sophisticated cellular mechanism. The study's findings could help develop future drugs to treat diseases based on a faulty autophagy process.
A novel method combines biosensors and microfluidics to quickly identify mutant bacterial strains that produce industrially useful proteins. The approach enables the extraction of high-performing strains in a fraction of the time required by traditional methods.
Researchers have discovered that a previously unknown strategy is used by the foodborne bacterium Listeria monocytogenes to invade and infect humans and animals. A housekeeping enzyme called LAP plays a crucial role in this process, and its attachment to the bacterial surface is essential for pathogenesis.
Biofilm-forming bacteria adhere to hydrophobic and hydrophilic protein-adsorbing SAMs firmly, while weakly attaching to hydrophilic protein-resisting SAMs. This study could lead to development of bacteria-resistant surfaces and antibiofouling coatings.
Researchers identify OmpU protein variants associated with antimicrobial resistance in Vibrio cholerae bacteria. Understanding the evolutionary origins of AMR can inform the development of effective therapeutics against resistant infections.
A new study reveals that a Cas protein and a membrane protein work together to enhance anti-viral defense in bacteria. The team found that the membrane protein forms a pore-like structure that disrupts energy production and hinders virus replication, effectively 'pulling the plug' on viral infections.
Researchers at Harvard Medical School discovered a new cellular sensor that allows dormant bacteria to detect nutrients and quickly spring back to life. This breakthrough could inform the design of ways to prevent dangerous bacterial spores from lying dormant for months before waking up again and causing outbreaks.
A recent study has discovered a shared protein sequence among bacterial pathogens, recognized by human T cells in a conserved manner. This finding suggests that T cells may provide broad antibacterial immunity against a range of diseases, potentially informing the development of more effective vaccines.
Lutz Grossman aims to create a protein-rich food source using hydrogenotrophic bacteria, which require no agricultural inputs. His goal is to produce a sustainable alternative to traditional protein sources, addressing global food security concerns.
Researchers at Cedars-Sinai Medical Center identified a genetic variant associated with increased risk of developing perianal Crohn's disease, a debilitating manifestation of Crohn's disease. The study highlights the importance of targeting the alternative complement pathway and Complement Factor B (CFB) in treating this condition.
Scientists have created a method to produce synthetic spider silk with eightfold higher yields than previous methods, making it a promising material for sustainable clothing production. The new silk fibers retain the desirable properties of enhanced strength and toughness while being lightweight.
Researchers from NUS Medicine discovered that specific CPS structures and sugar combinations help Streptococcus pneumoniae colonize the human respiratory tract. The study sheds light on the importance of CPS structure in bacterial survival, which will inform future vaccine development.
Research published in Science Translational Medicine found that gum disease may trigger an immune response in patients with rheumatoid arthritis. Breaches in damaged gums allow oral bacteria to seep into the bloodstream, activating an immune response that targets the body's own proteins and causes flare-ups.
Researchers at University of California - San Diego found that vertebrates acquired a special protein from bacteria more than 500 million years ago. This discovery reveals a new piece of genetic material introduced from foreign bacterial genes, leading to unique functionality in vertebrate eyes.
Researchers used ancestral sequence reconstruction to study protein interactions in cyanobacteria, finding that they can evolve independently of direct selection pressure. The discovery challenges classical evolutionary theory and suggests that fortuitous compatibility may be the basis for a significant fraction of cellular interactions.
Researchers have discovered that Shigella bacteria can infect humans but not mice due to differences in the shape of a key protein, gasdermin-B. The protein has six different forms, and some isoforms cause cell death while others do not, explaining why Shigella is unable to infect mice.
A new study published in Vector-borne and Zoonotic Diseases demonstrates that the serum of white-tailed deer blood is lethal to the Lyme disease bacterium, Borrelia burgdorferi. The researchers hope this discovery may lead to new strategies for preventing and treating Lyme disease.
Researchers developed a programmable bacterial injection system that can deliver a range of proteins, including those for gene editing, to different cell types. The system has shown promising results in targeting cancer cells and delivering proteins to the brain in live mice without provoking an immune response.
Researchers have discovered the critical role of linker histone protein H1 in plant immune responses to bacterial and fungal infections. The study found that mutant plants with knocked-out H1 isoforms exhibited higher defense gene expression and resistance to infection, but lacked priming ability.
Researchers at Houston Methodist discovered a way to reverse infertility in sterile mice by reducing high-circulating cholesterol with a bacterial protein. The study showed that this protein, called serum opacity factor, lowered HDL cholesterol levels by over 40% in three hours and restored fertility in the mice.
Scientists analyzed the lysine riboswitch in Bacillus subtilis to understand its dynamics with secondary ligands like potassium, cesium, and sodium. They found that these ligands can interact cooperatively with lysine, suggesting a more complex regulatory mechanism than previously thought.
Scientists have developed a high-throughput genetic screening approach to identify viral proteins that target bacterial cell walls, leading to potential new antibiotics. The method uses a coded library of DNA fragments to investigate unknown genes in environmental samples, sidestepping the need for culturing bacteria.
Researchers have created a bacterial 'suicide squad' that targets tumors and attracts immune cells to destroy them. The engineered E. coli bacteria release their contents when they reach a quorum inside a tumor, triggering an immune response.
A study by Nagoya University researchers identified three intestinal bacteria - Collinsella, Ruminococcus, and Bifidobacterium - linked to dementia with Lewy bodies. These findings may help diagnose and treat the neurodegenerative disease, with potential therapeutic interventions targeting specific bacteria.
A team from Australian National University has modified the protein folding properties of bacteria by adding multiple components from plant chloroplasts. This enables them to study and speed up plant Rubisco, a slow protein that requires 'chaperones' for operation.
Researchers have developed a new diagnostic test called p-LFAs that can detect and quantify protein concentrations to identify bacterial and viral infections. The test is 1,000 times more sensitive than conventional tests, returning results in just 20 minutes.
Researchers discovered a cluster of enzymes in bacteria that can be reprogrammed to edit proteins and potentially treat human diseases such as Parkinson's and Crohn's. The study also identified key components of the bacterial immune system, including two on-off switches, that could be targeted therapeutically.
A research team led by Professor Xiang David LI has developed a novel chemical tool called photo-ANA to investigate bacterial interactions with the host in real-time. This approach enables scientists to comprehensively profile host–bacteria protein interactions during infection, revealing known and newly discovered interactions.
The study reveals unexpected mechanisms that enable Aromatoleum aromaticum EbN1 T to adapt to changing environments. By analyzing its metabolic network, researchers developed a model to predict growth under diverse conditions.
A potent plant toxin called albicidin has emerged as a strong new antibiotic candidate, effective in small concentrations and highly potent against pathogenic bacteria. Its unique mechanism targets the bacterial enzyme DNA gyrase, which is essential for cell function.
Researchers analyzed how immunological memory gets generated and maintained to understand its role in cancer and inflammatory diseases. They found that increased inflammation can actually reduce immunological memory, highlighting the need for regulation.
Researchers identified 92 proteins in the spider's venom, including cysteine-rich peptides with potential therapeutic applications. The toxins were found to be effective in paralyzing crickets and may become active ingredients for pharmaceuticals and biological insecticides.
Researchers identified a new type of flagellin in the human gut that binds to Toll-like receptor 5 without inducing an inflammatory response. This discovery provides a mechanism for the immune system to tolerate beneficial microbes while remaining responsive to pathogens.
Researchers have isolated two new bacterial species from patients with inflammatory bowel disease (IBD), which break down the protective mucus layer of the gut. The bacteria, Allobaculum mucilyticum and Allobaculum fili, are highly efficient at degrading intestinal mucus, leading to potent immune responses.