Articles tagged with Dna Repair
Researchers developed a molecular bait to identify proteins involved in the cell's choice of DNA repair pathway, revealing key enzymes for homologous recombination. The discovery opens new possibilities for targeted cancer treatments using PARP inhibitors.
Researchers created a lab-grown population of E. coli bacteria that became resistant to ionizing radiation through genetic mutations and enhanced DNA repair mechanisms. This breakthrough could lead to the development of radiation-resistant bacteria for environmental clean-up, cancer therapy protection, and astronaut protection in space.
A study published in Cell Reports reveals the role of protein PIF1 in repairing G-quadruplex DNA structures, which can impede DNA repair mechanisms. The discovery sheds light on potential therapeutic options for cancer treatment and could improve patient outcomes.
A new Collaborative Research Center will explore cellular mechanisms involved in protecting and repairing genes. The study aims to determine factors causing genomic instability, signaling pathways detecting DNA damage, and mechanisms of protection against DNA damage.
Researchers found a species of blind cavefish lacking an ancient DNA repair system, previously known only in placental mammals. The discovery supports the 'nocturnal bottleneck' theory, suggesting ancestors of modern mammals lived in darkness before dinosaurs.
A breakthrough discovery reveals that the DDX11 helicase enzyme plays a vital role in DNA repair and serves as a backup to the Fanconi Anemia pathway. This finding has significant implications for understanding genomic stability and disorders associated with DNA repair deficiency, including cancer and developmental disorders.
Researchers found that the CSB protein, previously thought to be solely responsible for DNA repair, also enhances acetylation of alpha-Tubulin and regulates autophagy. HDAC inhibition restores balance, improving skin symptoms in mouse models. Further studies aim to explore its potential treatment for Cockayne syndrome.
Researchers found that RUNX proteins bind to DNA damage sites and co-regulate the recruitment of DNA repair protein FANCD2. This discovery could lead to the development of synthetic-lethal approaches to attack RUNX-deficient cancers, including solid tumours of the breast and leukemia.
Researchers discovered that the Fanconi anemia DNA repair pathway plays a crucial role in fixing CRISPR breaks and increasing the efficiency of homology-directed repair. This new understanding could help boost CRISPR-Cas9 editing's success rates, particularly for treating diseases like sickle cell anemia.
A team of researchers has uncovered a new protein complex called Shieldin that plays a critical role in normal cell division and cancer treatment. The complex shields broken DNA ends and controls the type of DNA repair system used by cells, making it vulnerable to targeting by PARP inhibitors and platinum-based chemotherapies.
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.
Scientists at the University of Sheffield have discovered an enzyme called UCHL3 that regulates DNA repair and may hold promise in improving treatment for chemotherapy-resistant cancers. The findings also suggest a link between UCHL3 activity and brain ageing, which could impact memory, cognitive function, and learning.
A recent study published in Nature Communications reveals that the enzyme USP48 plays a crucial role in DNA repair and may hold promise as a therapeutic target for Fanconi Anemia. Inactivation of USP48 in FA-deficient cells restores nearly error-free repair of damaged DNA.
Researchers developed MAGESTIC to refine gene-editing process, enhancing precision and increasing cell survival rates by sevenfold. The new platform enables precise editing of genetic variants, helping uncover impact on cellular function and disease susceptibility.
Researchers measured DNA repair in mice treated with cisplatin over a 24-hour period, finding nearly 2,000 genes repaired according to the circadian clock. This study suggests that understanding the interaction between circadian clocks and DNA repair could lead to more effective chemotherapy regimens.
A new study casts doubt on a leading theory for bdelloid rotifers' evolution, suggesting DNA repair following desiccation may not be key to their success. The researchers found no evidence of the predicted differences between species that can and cannot survive desiccation.
Researchers discovered that plant DNA repair works more efficiently on active genes, which are transcribed into RNA and proteins. The system's efficiency varies according to the day/night cycle, reflecting normal daily variations in transcription activity.
A University of Córdoba research group has disproved a widespread assumption among geneticists regarding DNA structure. The study reveals that two types of gaps caused by spontaneous and deliberate breakage are not equivalent, contradicting previous understanding.
Researchers have solved a longstanding puzzle of how cells compact DNA to enable healthy cell division. They found that single cells can compact DNA 10,000-fold by forming series of compacted loops and anchoring them to a central spiral axis.
Researchers at Osaka University and The University of Tokyo describe the unique binding of RNF168 to lysine 63 chains, which is stabilized by hydrogen bonds and hydrophobic interactions. This study provides insights into the molecular interactions that assure the recruitment of DNA repair proteins.
Researchers have developed a streamlined method and 'rules' to enhance the use of CRISPR technology, improving genome editing consistency and efficiency. The new guidelines focus on optimal donor DNA design and homology arm lengths, allowing for longer sequences to be inserted into the genome.
A diabetes drug has been found to improve DNA repair in cells affected by Xeroderma pigmentosum, a rare genetic disease. The drug, acetohexamide, degrades the DNA repair enzyme MUTYH, triggering an NER-independent mechanism for removing UV-induced DNA damage.
Researchers from the University of Seville studied a specific type of chromosomal break generated by enzymes called DNA topoisomerases. They found that this mechanism prevents the formation of aberrant chromosomal structures called translocations, which are linked to some types of cancer.
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 team of scientists has identified a protein called TOX that drives the initiation and growth of an aggressive form of leukemia. TOX is expressed in 95 percent of human T-ALL cases and required for cancer's growth and persistence, offering new targeted treatment approaches.
A new study reveals how the immune system avoids becoming cancerous by using a hair-trigger protein called Tia1. This protein controls the production of proteins needed to fix damaged DNA, allowing B cells to produce effective antibodies while preventing lasting harm.
Researchers have obtained the highest resolution map yet of human proteins critical to DNA function, providing insights into gene research and drug development. The study used cryo-electron microscopy to resolve the structure of transcription factor IIH at near-atomic resolution.
A study by researchers at the Center for Genomic Regulation reveals that mistakes made by a DNA spellchecker can lead to cancer mutations. The findings suggest that high levels of alcohol and exposure to sunlight can shift the balance of DNA repair mechanisms, causing errors in critical parts of the genome.
A team of researchers has identified a new gene mutation associated with Fanconi anemia, a rare genetic disorder characterized by bone marrow failure. The mutation in RFWD3 gene was found to disrupt DNA repair mechanisms, increasing cancer risk in individuals with the disease.
Researchers have discovered how certain enzymes in living organisms can repair damaged DNA caused by prolonged exposure to UV light. The enzymes, called (6-4) DNA photolyase, use electrostatic interactions to bind to the damaged DNA and keep it separate from the rest of the cell.
Researchers at Osaka University have discovered a key role for protein SCAI in selecting between DNA repair mechanisms, NHEJ and HR, in response to damage. The study found that SCAI promotes the recruitment of HR proteins by binding to 53BP1.
A new gene mutation, RFWD3, has been linked to defective DNA repair and Fanconi anemia, a rare genetic disorder. The mutation was found in a 12-year-old patient without known Fanconi anemia genes, and cells from the patient showed increased susceptibility to DNA damage.
A new study reveals that tadpoles living in low-temperature environments are more susceptible to DNA damage from UV radiation. This increased risk can lead to mutations and cell death, contributing to the global amphibian extinction crisis.
Drexel University researchers uncover a crucial role of the Rad52 protein in RNA-dependent DNA repair. The study reveals an unexpected function of Rad52, promoting 'inverse strand exchange' between double-stranded DNA and RNA molecules. This mechanism may help identify new therapeutic targets for cancer treatment.
Ben-Gurion University researchers found that SIRT6 protein levels are significantly lower in Alzheimer's patients and contribute to the onset of the disease. The study suggests a link between low SIRT6 levels and DNA damage accumulation, which may lead to neurodegenerative diseases.
Researchers at IBS discovered a new function of DNA repair protein SHPRH, which regulates ribosome synthesis in response to nutrient availability. The protein's behavior changes during cellular starvation, allowing it to quickly recover ribosome production upon nutrient reintroduction.
Researchers at Aarhus University have described the structure and organization of the DNA control protein Rad26, revealing how kinase Rad3 is recruited to damaged DNA. This new knowledge may lead to the development of Rad3 inhibitors that make cancer cells more susceptible to chemotherapy.
A new study successfully uses CRISPR-Cas9 to modify the genome of Methanosarcina acetivorans, an archaeal species, for the first time. This breakthrough enables accelerated studies on these organisms, with implications for understanding global climate change and the global carbon cycle.
Scientists from UNC School of Medicine have confirmed the functions in bacterial cells of two important excision repair proteins, Mfd and UvrD, using an advanced sequencing technique. The study provides a genome-wide map of excision repair in bacteria and highlights the potential for developing novel antibiotic drugs.
Research reveals that stem cells from heavy smokers use error-prone DNA repair pathway, leading to accumulation of mutations and squamous cell carcinoma. The study suggests targeting DNA repair processes may be a promising approach to preventing and treating this form of lung cancer.
Researchers found that increasing niacin levels boosts NAD compound for energy generation and DNA repair, potentially protecting against Parkinson's. The study suggests repurposing cancer drugs to protect faulty mitochondria in Parkinson's disease.
Researchers have characterized the critical function of the Zf-GRF domain in manipulating DNA during repair processes. The domain is essential for APE2 enzyme activity, enabling it to bind to single-stranded DNA and facilitate its 3'-5' resection.
A recent study published in Genes & Development reveals an enzyme called UCHL3 that plays a crucial role in regulating the BRCA2 pathway. This research suggests that UCHL3 could be used as a potential therapeutic target to overcome chemotherapy resistance in breast and ovarian cancer cells.
A recent study found that hybrid structures composed of DNA and RNA play a crucial role in restoring genetic information after damage. The research also revealed that RNase H enzymes targeting these hybrids are vital for efficient DNA repair. This discovery offers potential for developing new cancer drugs targeting these enzymes.
A new study from the University of Pennsylvania has developed a system to observe the repair of broken DNA in telomeres, a process that drives 15% of cancers. The researchers found that this unique type of repair, called break-induced telomere synthesis, differs from other forms of homologous recombination.
Researchers at the University of Copenhagen have found that adding the substance NAD+ to mice and roundworms can extend life and delay aging processes. The study suggests that NAD+ plays a key role in maintaining cellular health and repairing genes, with potential benefits for patients with Alzheimer's and Parkinson's disease.
Researchers at the University of Pittsburgh School of Medicine identified a unique 'constrained motion' pattern in which Rad4, a repair protein, scans DNA for structural faults. This discovery could lead to therapies that enhance existing treatments and counter drug-resistance, particularly in cancer.
Researchers discovered that c-Jun N-terminal kinase (JNK) activates SIRT6 to repair broken DNA strands. The study found that JNK modifies a specific amino acid residue on SIRT6, allowing it to recruit the enzyme PARP1 to damaged sites.
Researchers found that mismatch repair machinery preferentially protects genetic integrity in open chromatin regions, increasing mutation rates in heterochromatic areas. This study provides direct evidence for the role of epigenetic systems in maintaining genetic fidelity.
Researchers at UC Berkeley discovered a way to boost CRISPR-Cas9 cutting efficiency up to fivefold by disrupting DNA repair mechanisms with short oligonucleotide pieces. This technique increases the success rate of creating knockouts, essential for studying gene function and correcting hereditary mutations.
Researchers have discovered a new molecular mechanism that directs cellular DNA repair proteins to lesions in DNA, making it an attractive target for cancer therapy. By understanding how this mechanism works, scientists can design small molecule inhibitors that block the function of TONSL protein and promote cancer cell death.
A new technology called Maximum Depth Sequencing (MDS) can accurately read the order of DNA code and reveal how bacteria use high-speed evolution to defeat antibiotics. MDS also promises to enable earlier cancer diagnosis by detecting rare genetic changes in human cell populations.
The IBS team identified baicalein as a suitable antagonist to battle malignant cancerous cells, binding to mismatched DNA and causing cancerous cells to self-destruct. The research found that baicalein significantly shrunk MutSα-deficient tumors in mice models, offering a viable option for patients with DNA MMR deficient tumors.
Sheffield scientists capture never-before-seen snapshots of enzymes trimming branched DNA after cell division. The discovery provides insight into the molecular process of DNA replication and repair, essential for all life forms.
The BRCA1 gene's ubiquitin ligase activity is crucial for error-free DNA repair through homologous recombination. Cells lacking this function are sensitive to DNA damaging agents and may develop cancer.
Researchers at Osaka University found that DNA damage response errors can lead to tumor formation when proteins are not removed correctly. Ku protein plays a key role in DNA repair, but its incorrect function can result in genetic information loss and cancer.
A study published in Science reveals that a molecule called ppGpp enables bacteria to repair damage to their DNA, including that caused by antibiotics. Adjusting the action of ppGpp may make bacteria more vulnerable to existing antibiotics, potentially yielding future solutions for antibiotic resistance and degenerative diseases.
Researchers created knockout mice that lack a gene involved in DNA repair, shedding light on how cells fix broken DNA. The mice developed kidney and liver dysfunction due to impaired detoxification, highlighting the importance of FAN1 protein.
Researchers have made significant discoveries about the RTR complex's role in DNA repair and its connection to cancer development. The study highlights the importance of maintaining genomic stability during reproduction.
Researchers have identified a molecular target for DNA repair defects behind Fanconi anemia, a complex genetic disorder responsible for birth anomalies, organ damage, anemia, and cancer. The study reveals a potential therapeutic strategy and raises important questions about a compensatory DNA repair process.