Articles tagged with Mutant Proteins
A team of researchers from Japan and Germany created a mouse model that mimics the human pathology of restrictive cardiomyopathy, allowing for easier study. The model shows changes in protein quality control and autophagy, leading to fibrosis and heart muscle stiffening.
Researchers identified a rare genetic mutation causing severe muscle damage and heart failure in children. Experimental approaches for treatment were successful in mice, offering hope for potential therapies.
Researchers found that mutations in cardiac myosin-binding protein C (cMyBP-C) cause HCM through unknown mechanisms, altering protein integrity or mechanical properties. This knowledge is crucial for clinical follow-up and treatment of patients and their families.
Researchers at UT Southwestern Medical Center have successfully employed a new CRISPR-Cas9-based gene therapy approach to treat mice with Duchenne muscular dystrophy, restoring nearly full production of the dystrophin protein. The approach could lead to a treatment for DMD and inform the treatment of other inherited diseases.
A new study published in Nature Communications shows that the mutated huntingtin protein slows brain cells' protein-building machines, called ribosomes, by two to four-fold. This slowing effect ultimately leads to cell death in Huntington's disease.
Researchers discover mutant p53 protein clusters drive disease-causing aggregates, a key finding in understanding cancer mechanisms. The study suggests novel cancer treatments targeting mutant p53 may be effective.
Researchers at Scripps Research Institute shed light on the mysterious Gao protein, crucial for brain signaling and motor control. They found that mutations disrupt this process, causing severe developmental delays, seizures, and uncontrolled muscle movements in affected children.
A new study found that proteins become biochemically addicted to complex interactions, even if they serve no purpose. The 'hydrophobic ratchet' mechanism drives the accumulation of useless complexity inside cells.
Researchers found that the USH2A protein, produced by the Meissner corpuscle, is essential for maintaining normal touch perception. The protein helps transmit touch vibrations from the outside of the fingertip to the nerve ending inside the corpuscle.
Researchers at Columbia University Irving Medical Center have created a technology using synthetic llama antibodies to prevent specific proteins from being destroyed inside cells. This approach could be used to treat dozens of diseases, including cystic fibrosis, by selectively rescuing imperfect but functional proteins.
An Italian team has successfully recreated the pathological condition of Kabuki syndrome in a test tube, revealing the impact on the cell nucleus and bone formation. The study identifies a potential therapeutic approach by targeting a nuclear protein that responds to mechanical signals.
Researchers analyzed over 5,085 strains of the virus, finding that a specific protein mutation became dominant during the second wave, causing increased transmissibility. The study also discovered a correlation between patients with this mutation and younger demographics, lower median incomes, and less severe symptoms.
A University of Illinois study tracks the evolution of SARS-CoV-2 virus mutations, finding stabilization in key proteins that could improve COVID-19 treatments. The research suggests these stabilizations may help increase viral infectivity and shed light on vaccine development.
Researchers at Mayo Clinic have developed a potential test for Machado-Joseph disease, a rare neurodegenerative disorder with no cure. The new test can quantify mutant protein levels in human biofluids, which may help evaluate the effectiveness of therapies aimed at reducing protein accumulation.
Researchers identified mutations in the novel gene ANGPT2, responsible for primary lymphedema. The discovery provides insights into the disease's underlying mechanisms, potentially leading to improved treatments.
Researchers successfully edited RNA to correct mutations in the MeCP2 protein causing Rett syndrome, a condition affecting 1 in 10,000 live births. The technique holds promise for treating neurological disorders with genetic mutations spread across thousands of cell types.
A slow-growing rotavirus mutant has allowed researchers to observe the early steps of viral assembly, providing new insights into the formation of viroplasms. The study found that NSP2 phosphorylation plays a crucial role in triggering lipid droplet formation, a key step in viroplasm formation.
Researchers have discovered how XPG binds to and reshapes damaged DNA, illuminating its role in maintaining genetic stability. The protein's unique 'sculpting' activity allows it to bend DNA, recruiting proteins to fix damage, and may help prevent cancer by supporting homologous recombination.
Researchers have developed a groundbreaking mouse model of human prion disease, demonstrating spontaneous formation of disease-relevant prion protein assemblies in mice with only human forms of the prion protein. This discovery is expected to provide valuable insights into human disease and inform the development of therapies.
Researchers discovered a new mechanism for regulating RAS enzyme activity that will inform therapeutic strategies for inhibiting mutated RAS proteins involved in cancer. The study found that close proximity on the cell membrane is required for one RAS protein to interact with other RAS proteins.
Scientists at Duke-NUS Medical School have discovered a potential therapeutic target for treating sleep disorders. Targeted mutations in the PER2 protein can alter the balance of the biological clock and significantly lengthen the circadian period in preclinical models.
Researchers identified mutations that improve photosynthesis in Arabidopsis thaliana by reducing protein degradation and increasing chlorophyll production. The findings suggest a potential mechanism to enhance plant energy efficiency and biomass production.
Researchers identified a protein and signaling pathway that may contribute to sudden cardiac deaths in patients with Arrhythmogenic Right Ventricular Cardiomyopathy (ARVC). The study found that loss of integrin β1D prevents proper calcium control, leading to arrhythmias.
Researchers found a molecular switch mechanism that regulates biological clocks, explaining how mutations can shorten clock timing. This discovery may enable the development of therapies to alleviate disruptions caused by clock dysregulation.
A research team has identified a mechanism that triggers a rare type of muscular dystrophy, Limb-girdle muscular dystrophy (LGMD) 1G. The study reveals that a specific protein isoform with two domains is prone to forming toxic aggregates, while another isoform with three domains can prevent aggregation through phase separation.
Researchers at Ben-Gurion University and The Hebrew University of Jerusalem developed a powerful tool that streamlines the development of disease therapies, transforming a multi-year process into just a few days. The new approach simultaneously evaluates thousands of mutations in protein-protein complexes, increasing understanding of m...
A class of antibiotics called aminoglycosides has been found to be effective in treating frontotemporal dementia by fixing a genetic mutation that prevents the production of progranulin protein. Researchers discovered two specific antibiotics, Gentamicin and G418, which were able to recover up to 50-60% of progranulin protein levels.
A study at University of Texas M.D. Anderson Cancer Center showed a potential new approach to treating follicular lymphoma and DLBCL through manipulation of molecular programs controlled by CREBBP. Inhibition of HDAC3 restores immune programs lost as a result of CREBBP mutations, paving the way for immunotherapy approaches.
A Brazilian research team identified the presence of mutant p53 protein clusters in chemotherapy-resistant glioblastoma cells, which can lead to drug resistance. The study found that these clusters are organized in a way that makes them resistant to temozolomide, a common treatment for the disease.
A research team from HKU developed a novel deep learning approach to predict disease-associated mutations in metal-binding sites. The approach uses spatial features and physicochemical sequential features to train a model, achieving an AUC of 0.90 and accuracy of 0.82.
A study found that different mutations in a single gene can cause various problems in brain cells. Researchers discovered that even healthy proteins may interfere with mutant proteins' actions, leading to irregular neuronal firing. The findings emphasize the importance of understanding each mutation for personalized medicine.
Amyotrophic Lateral Sclerosis (ALS) researchers found that aggregation of TDP-43 is not harmful but actually protects cells. This discovery challenges the assumption that alleviating protein aggregates is necessary to treat neurodegenerative diseases like ALS. The study opens doors to radically new therapeutic approaches if aggregation...
Researchers at McGill University discovered how a specific mutant form of the SLC9A6 encoding gene affects neurons' ability to form connections. The study provides clues for new treatments, potentially benefiting patients with Christianson Syndrome and other neurodegenerative disorders.
Seven early-career scholars are awarded four-year grants to advance their research on reprogramming tumor-associated immune cells, mutant proteins in lung cancer, and treating acute myeloid leukemia.
Researchers found that an anti-malarial drug called artemisinin can help sensory cells of the inner ear recognize and transport essential proteins to specialized membranes. This could lead to new therapeutic options for people with Usher syndrome, a common genetic cause of hearing loss.
A genetic mutation in the CCR5 gene associated with a lower survivability rate was created on twin babies born last year. The mutation increases mortality by 21%, particularly between ages 41 and 78, according to researchers at the University of California, Berkeley.
Recent studies examining three mutations at the molecular level found separate mechanisms at work in hypertrophic cardiomyopathy. Researchers suggest that multiple mechanisms may be responsible for the disease, rather than a single explanation. This discovery holds promise for developing new treatments for this condition.
Scientists from EPFL used directed evolution to modify DNA-wrapped single-walled carbon nanotubes, creating nanoparticles that emit stronger optical signals. After only two cycles of evolution, they achieved a 56% increase in signal strength.
Researchers discovered a process called neuritosis, where damaged mitochondria lead to neuronal disconnection and death in neurodegenerative diseases. This discovery opens new targets for therapy, as preserving mitochondrial health may prevent disease progression.
A protein thought to be inert actually helps protect the lens of the eye from cataract formation. The protein's disulfide bond can drive damaged proteins to aggregate, leading to clouding and cataracts.
Research reveals that a genetic mutation in Filamin A protein impairs cellular force transmission, leading to valvular heart disease. The study provides new insights into the molecular mechanisms of the disease and paves the way for developing new treatments.
Researchers found LZTR1 contributes to human diseases by acting as part of ubiquitin ligase complex that mediates conjugation of ubiquitin to RAS proteins, reducing its activation and downstream signalling. This discovery may lead to novel therapeutic approaches for RAS-driven diseases.
Melbourne scientists discovered how mutant p53 promotes cancer development by 'tackling' the normal protein and blocking its protective role. This allows cancer cells to undergo further genetic changes that accelerate tumour growth.
Researchers found that fruit flies with a specific mitochondrial DNA mutation thrived on high-carbohydrate diets, while those without the mutation stagnated on protein-rich diets. The study suggests a potential link between this mutation and human health issues related to carbohydrate intake.
Researchers have identified a rice strain with improved nutritional profile by thickening its aleurone layer. The mutation of the OsROS1 gene responsible for this change offers a strategy to enhance nutritional value in rice and other cereal crops.
Researchers discovered 137 interactions between HPV proteins and human proteins, revealing common pathways with smoking-related cancers. The study highlights the importance of targeting specific proteins to develop effective treatments for HPV-positive head and neck cancers.
Researchers at Monash University have discovered structural capacitance elements in mutated proteins associated with human diseases, particularly cancers. These elements enable mutations to trigger a gain-of-function, shedding light on protein evolution and the engineering of highly evolvable proteins.
The new study reveals that different KRAS mutations have distinct effects on the KRAS protein's molecular-level function. The findings enhance understanding of cancer-causing mutations and may lead to the development of targeted drug therapies.
A research team at Max Delbrück Center identified tiny huntingtin protein fibers that precede larger deposits in Huntington's disease, enabling prediction of disease onset months in advance. These findings hold promise for diagnosis and potential new treatments by testing pharmaceutical substances against the fibers' harmful activity.
A study led by Professor Matthias Selbach found that minute changes in Glut1 protein structure can lead to severe cellular disturbances, causing genetic disorders. The research identified a mechanism where flexible regions of proteins interact with other molecules, disrupting cellular processes and leading to disease.
A new system has been identified that could reduce neurodegeneration in Huntington's disease by blocking the accumulation of toxic protein aggregates. The system involves a protein called UBR5, which promotes the degradation of mutant huntingtin, leading to a decrease in neurotoxic effects.
A new genetic link has been found between the gene IRF2BPL and a previously undiagnosed neurological disorder characterized by progressive neurodevelopmental regression. Mutations in IRF2BPL were identified in seven individuals, including five with severe symptoms and two with milder characteristics.
Cystic fibrosis patients may benefit from a new lipid-based nanoparticle therapy that enables cells to produce the correct protein, allowing for improved respiratory function. The therapy has shown promise in treating all cystic fibrosis patients, regardless of their genetic mutation.
A new study reveals that a DNA repair protein associated with cancer can disrupt electron transport through DNA, leading to mutations. The researchers found that a specific mutation in the MUTYH protein causes the iron-sulfur cluster to degrade when exposed to oxygen.
Researchers developed a new technology to detect and quantify RAS protein mutations, which are found in over 20% of human cancers. The 'top-down' approach provides precise characterization of KRAS4b proteins, revealing new avenues for cancer treatment.
Researchers at Purdue University may have discovered a way to stop Ebola virus replication by mutating its most important protein, VP40. The study found that altering the amino acid sequence of VP40 reduces lipid binding and prevents viral budding, offering new targets for therapeutics.
Scientists from NIAID exposed research mice to brain samples from three people who died from a familial prion disease. Two mutations, Y226X and G131V, were found to be transmissible to mice. The finding highlights the hardiness of prion infectivity and potential risks associated with prion transmission.
Researchers at TSRI have discovered a path to treating Charcot-Marie-Tooth disease subtype CMT2D by restoring normal protein function in the nervous system using a small molecule. The study reveals that mutant protein interactions with HDAC6 are responsible for nerve damage, and blocking this interaction can restore proper nerve function.
Researchers at University of Pennsylvania School of Medicine found that microglia, a type of brain immune cell, are essential for dealing with TDP-43-associated neuron death in ALS. Microglia proliferation and activation helped clear accumulated human TDP-43 from motor neurons, restoring muscle function and mobility.
Mutations in p63 protein lead to severe genetic disease AEC syndrome, which resembles Alzheimer's, Parkinson's or ALS more closely than other syndromes. The research lays groundwork for causal therapies by showing that protein aggregates underlie the disorder.