Articles tagged with Enzymatic Activity
Scientists discovered how methanogenic archaea regulate nitrogen uptake using a molecular switch that adjusts enzyme activity based on 2-oxoglutarate levels. This regulation prevents energy waste when cells have enough nitrogen.
Researchers at Nagoya University have discovered a relationship between ALS progression and the disruption of mitochondria-associated membranes (MAM) and TBK1 activity. Decreased activation of TBK1 is linked to motor neuron death in ALS patients and mice with disrupted MAM.
Researchers found that the IAA-miR164a-NAC100L1 module induces callose deposition to mediate graft incompatible cucumber/pumpkin seedlings. The module regulates callose synthase activity and interacts with NAC100L1 to enhance symbiotic incompatibility.
Researchers discovered new antibiotic molecules targeting Mycobacterium tuberculosis, reducing its pathogenicity. These substances also enhance the activity of conventional antibiotics like ethionamide, offering a renewed treatment approach.
Scientists discovered that a bacterial defense system can induce self-destruction when bound to specific proteins, marking a new phenomenon in enzymatic function. This switch allows the bacteria to eliminate a vital molecule needed for survival, ultimately leading to their demise.
Researchers used tiny beads to immobilize enzymes from edible fungus Agrocybe aegerita, protecting them from plasma treatment and increasing stability up to 44 times. The study paves the way for new biocatalytic applications combining enzymes with technical plasmas.
A recent study published in the Journal of Cell Biology has made significant progress in understanding autophagy and lipid recycling. Researchers used yeast as a model organism to identify key players in the process, including Atg15, Pep4, and Prb1, and demonstrated that Pep4 and Prb1 activate Atg15 to break down phospholipid bilayers.
Brazilian researchers found that Zika-infected mice with microcephaly have lower Ndel1 enzyme activity, which plays a key role in neuron differentiation and migration. The study suggests that Ndel1 may be a biomarker for early diagnosis of microcephaly and offers hope for treatment options.
Researchers have developed enzydynamic therapy at nanoscale using nanozymes to regulate reactive oxygen species (ROS), which can cause oxidative damage in living organisms. This approach has the potential to treat various diseases, including malignancies, neurodegeneration, and inflammation.
U of I researchers have developed organic nanozymes that mimic the properties of natural enzymes, exhibiting peroxidase-like activities and detecting glyphosate with adequate accuracy. The OC nanozyme is quicker to produce, cost-effective, non-toxic, and environmentally friendly.
Researchers at UTSA are studying the bioactive properties of Sweet Annie, a plant used in traditional Chinese medicine for over 2,000 years. The study reveals that arteannuin B from the plant has anti-COVID and anti-glioblastoma properties, offering new avenues for targeted therapy.
The study reveals that magnesium transport proteins are essential for plant metabolism and chloroplast functioning, impacting growth and yield. The analysis of three newly identified magnesium release and transporter proteins shows their importance in photosynthesis.
A new gene-editing technique combines peptide nucleic acids and prokaryotic Argonautes to introduce targeted breaks in the genome. The approach, called PNP editing, offers advantages over CRISPR-based methods, including improved specificity and targeting.
A protein found in bacteria activates its enzymatic activity by up to 10,000 times when exposed to blue light, acting like an on-off switch. This discovery could lead to enhanced and optimized optogenetic tools and medical treatments.
A new multiplex assay has been developed to assess activated p300/CBP in circulating prostate tumor cells, revealing correlations with clinical outcomes and potential therapeutic targets for castration-resistant prostate cancer. The study found that patients with upregulated p300/CBP activity had shorter response times to ARSI therapy.
Researchers investigated hepatic hydrogen sulfide production in a mouse model of Hutchinson-Gilford Progeria Syndrome (HGPS) and found reduced H2S levels in RC-fed mice, with partial rescue on high-fat diet. This study suggests that accelerated aging in HGPS may be partially explained by reduced hepatic H2S levels.
Researchers used machine learning algorithms to explain how calpain-1 activity is modified on the molecular level, finding that lipid peroxidation products like MDA and HNE can increase or decrease activity. The study provides new insights into protein modification and its role in meat tenderness.
Researchers created the Cancer Atlas of Metabolic Profiles (CAMP) to analyze gene activity and metabolite levels in tumor samples. The atlas reveals two broad classes of gene-metabolite connections, pointing to mechanisms at work across cancer types.
Scientists at the University of Ottawa have engineered an enzyme that can specifically cut small, non-coding RNAs, shedding light on their functions and paving the way for potential therapeutic applications. The new enzyme could be a powerful tool for studying these important RNA species.
A new Raman probe, 9CN-JCR, has been developed for detecting multiple enzyme activities in heterogeneous biological tissues. The probe exhibits high sensitivity and multiplexing ability, making it a promising tool for cancer diagnosis and research.
A new AI tool, CLEAN, can predict enzyme functions based on amino acid sequences, outperforming leading state-of-the-art tools in accuracy and reliability. The tool was developed using contrastive learning and verified experimentally with both computational and in vitro experiments.
A new study found that loss of Menin in the hypothalamus drives physiological aging in mice, including cognitive decline and reduced lifespan. However, supplementation with the amino acid D-serine reversed these age-related changes, improving skin thickness and bone mass.
A phase 2 study found that ANGPTL3 inhibitor therapy reduced triglycerides by up to 70% in patients with severe hypertriglyceridemia who had previously experienced acute pancreatitis. The treatment, evicanumab-dgnb, also showed potential for cardiovascular prevention by reducing apolipoprotein B levels.
Researchers from Northwestern University discuss the multifaceted tumorigenic functions of EZH2, including its role in regulating translation and coactivating transcription. This new understanding may provide novel insights into advancing EZH2-targeting strategies for prostate cancer patients.
A study by researchers at TUM found that gut bacteria play a crucial role in liver regeneration. The microbiome produces short-chain fatty acids, which are essential for liver cell growth and division. In mice treated with antibiotics, liver regeneration was delayed or not possible, but a
Scientists have reconstructed the evolutionary history of flavin-containing monooxygenases (FMOs), a class of detoxifying enzymes present in all lifeforms. The study reveals that a single ancestral gene diverged into two distinct functions, with one gene triggering a different breakdown reaction.
Scientists developed an AI system, ProGen, that can generate artificial enzymes from scratch, working as well as those found in nature. The AI model learned aspects of evolution and was able to tune its generation for specific effects, creating proteins with unique properties.
Researchers discovered that cabbage white butterfly caterpillars use two complementary enzymes for detoxification, allowing them to adapt to various cruciferous plants. The NSP and MA enzymes differ in their capacity to process different glucosinolates, enabling the caterpillars to fine-tune their detoxification mechanisms.
A high-throughput analysis of 26 medically important snakes in sub-Saharan Africa reveals the benefits of an integrated approach to understanding their venom composition and function. The study provides a solid foundation for further research on snake biology and antivenom development.
Researchers found drastic differences in microglia marker Iba1 and factors influencing Sirt1 levels and activity between elder groups. Preserving microglia and Sirt1 functional efficiency is crucial for longevity.
A new experimental drug has shown promising results in treating liver cancer, with two patients experiencing a partial response to the treatment. The drug, NMS-01940153E, targets an enzyme that plays a critical role in cell division and growth, and its side effects are manageable.
Scientists have developed an enzyme that effectively breaks down signaling molecules used by bacteria to produce biofilms. The enzyme, LrsL, has exceptional efficacy in suppressing biofilm formation by Pseudomonas aeruginosa, a bacterium known for causing hospital-acquired infections.
A new study reveals how a rare genetic mutation affects an enzyme involved in learning and memory, leading to enhanced activation and potential treatment options. Researchers have developed a method of protein analysis that enabled them to identify a potential treatment using existing medicine.
A new University of Illinois study shows that fathead minnows can handle simulated heatwaves with few nasty side effects. Most minnows rapidly returned to normal physiological functioning after cooling down, but some became more susceptible to oxidative stress.
Researchers at SFU have developed new chemical biological tools to monitor Parkinson’s disease progression, measuring the activity of lysosomal glucocerebrosidase (GCase) enzyme. This breakthrough could lead to improved diagnostics and treatment, as well as a better understanding of other neurodegenerative diseases linked to GCase.
Researchers at the University of Wisconsin-Madison have discovered a direct link between the p53 and PI3K/Akt pathways in cancer cells. The study identified two enzymes, IPMK and PIPKIa, as key regulators of these pathways, offering new insights into potential cancer treatments.
Researchers developed a MOF-based system for delivering DNA into target cells, overcoming challenges in gene therapy. The tiny structures protected genetic cargo and helped ferry it into the nucleus, where gene activity takes place.
Researchers have deciphered the activity of B12-dependent radical SAM enzymes, which regulate methane production by archaea. The study's findings have implications for biotechnologies that control key enzymatic events and could help reduce global warming.
A study led by Frank Keppler and Ilka Bischofs reveals that all organisms release methane, with the process driven by reactive oxygen species. The researchers verified this finding in over 30 model organisms, including bacteria, archaea, yeasts, plant cells, and human cell lines.
Researchers have identified a novel enzyme that catalyzes the formation of glycosidic bonds in complex sugar moieties. The discovery provides fresh insights into carbohydrate metabolism and offers a breakthrough for the synthesis of sugar chains, which play key roles in various biological processes.
A study led by Kyoto University researchers found that modulating hormone levels can improve meibomian gland disorder, a common cause of dry eyes. Topical administration of nicotinamide mononucleotide (NMN) boosted NAD levels and rebooted 3-HSD activity in mutant mice, alleviating dryness.
A genetic study identified an AKR1A1 variant associated with schizophrenia that leads to exon skipping and loss of enzymatic activity. The c.753G>A and c.264delC variants were found in patients with schizophrenia, suggesting a potential molecular mechanism behind GlucA accumulation.
A UC Riverside-led study has identified a potential antiviral therapy for SARS and SARS-like coronaviruses by targeting the papain-like protease enzyme. The research reveals that subgroup 2b PLpros selectively target specific host immune pathways, making them a promising target for future coronavirus therapeutics.
Researchers at Uppsala University have designed a molecule that inhibits the replication of coronaviruses, including the new variant, with great potential for developing an antiviral drug. The molecule has been shown to be effective against both old and new variants, offering hope for treatment options.
Researchers at RIKEN successfully treated cancer in mice using metal catalysts that assemble anticancer drugs inside the body. The technique avoids indiscriminate tissue damage and increases cancer-inhibiting activity by 1000 times.
A new study reveals a shared molecular pathway governing sperm motility among corals, sea urchins, and humans. Researchers found that corals have a pH-sensing enzyme similar to one in human sperm, which signals when to swim.
MRNA eraser enzymes play a crucial role in regulating gene expression and cell fate decisions. Research on these enzymes may lead to the development of therapeutics that target misbehaving erasers in disease. The team aims to understand how these enzymes recognize and choose specific methyl groups to remove from RNA.
USP8 activity regulation has been decoded, revealing an autoinhibitory region that interacts with its catalytic region and enhances deubiquitinating activity in Cushing's disease. This discovery could lead to targeted therapy for the condition.
Scientists at the Max Planck Institute have uncovered how ExoY toxin becomes activated in human cells by binding to actin filaments, leading to devastating enzymatic activity. This discovery sheds light on a crucial molecular mechanism that underlies the pathogenicity of various toxins.
Researchers at Okinawa Institute of Science and Technology (OIST) have developed a system to study cellular reactions in a way that more closely reflects how molecules behave in a living cell. By mixing a polymer with protein, they created membraneless droplets that can mimic the molecular properties of how molecules move in the cell.
A process in cells may limit SARS-CoV-2 infectivity, but mutations in alpha and delta variants overcome this effect. GALNT1 enzyme activity reduces furin cleavage, while mutated spike proteins increase it.
Researchers from the University of Seville discovered that a single amino acid mutation in Salmonella enzymes enables them to modify more proteins in infected cells, leading to increased virulence. This finding has significant implications for developing inhibitors as alternative antibacterial treatments.
Researchers at TTUHSC have identified novel targets for treating stroke, focusing on enhancing neurolysin activity. The study discovered small molecules that can selectively enhance the activity of neurolysin, which showed promise in reducing damage to the brain after a stroke.
A study by Kazan Federal University found that probiotics administered to antibiotic-treated mice improved behavior, reduced oxidative stress, and restored gut microbiota diversity. The researchers demonstrated a strong link between the gut microbiota and brain functioning, with potential therapeutic benefits for treating dysbiosis-rel...
Researchers from Tokyo University of Science developed a self-powered diaper sensor that monitors urine sugar levels, providing an alternative biomarker for blood sugar monitoring. The sensor uses a biofuel cell powered by glucose in the urine, detecting sugar levels within 1 second and simplifying caretaking tasks.
Researchers discovered an enzyme from Amazon fungus Trichoderma harzianum capable of breaking down diverse plant biomass sugars, enhancing the efficiency of second-generation ethanol production. The enzyme's industrial use is now viable at low cost due to genetic engineering techniques.
Researchers found that selenium nanoparticles and garlic extract can mitigate stress in grass carps by reducing oxidative damage and improving digestive enzyme activity. The supplements also increased growth rate and improved immunity in fish at medium and low population density.
Researchers developed a more efficient way to produce fucosyltransferase VI (FTVI) enzyme, which enhances the homing ability of cord blood stem cells. This breakthrough could improve the effectiveness of cord blood transplants for treating various life-threatening conditions.
Soil enzymes play a crucial role in chemical reactions, cellular metabolism, and organic matter decomposition. Heavy metals like lead and cadmium reduce enzyme activity by 3-3.5 times, particularly affecting carbon and sulfur cycles.
Researchers at Aarhus University have developed a new equation to describe the activity of enzyme cascades in cells. This breakthrough could lead to a better understanding of how enzymes control cellular signaling and potentially improve drug development for cancer treatment.