Articles tagged with Messenger Rna
Researchers at the University of Bonn have visualized the transport of messenger RNA from the cell nucleus to the cytoplasm using a highly sensitive light microscope. The study reveals that the process involves brief collisions with the nuclear membrane and quality control checks, resulting in only about every fourth successful export.
Researchers have discovered a vast new gene regulatory network in mammalian cells that could explain genetic variability in cancer. The mPR network allows mRNAs to communicate through small RNA molecules called microRNAs, influencing the expression of other genes.
Researchers at Brown University have developed a genetic biopsy technique to analyze the genes expressed by human eggs without harming them. By comparing the gene expression sequences in polar bodies and their host eggs, they found that more than 90% of detected genes were also present in the eggs.
Scientists discovered a previously unknown compensatory pathway that protects the brain and organs from genetic and environmental threats. The NMD pathway is vulnerable to insults, but human cells have evolved a way to overcome attacks by sending reinforcement molecules to compensate for losses.
Researchers have created a detailed map of gene expression in the mouse cerebral cortex, which shares 90% of its genes with humans. The atlas provides insight into how genes work in this complex region of the brain, including correlations between specific genes and human diseases such as Parkinson's and Alzheimer's.
Researchers have identified key mRNA molecules that the Fragile-X mental retardation protein binds to in brains of mice, suggesting new avenues for treating intellectual disability and autism. The study also proposes two possible treatment strategies: lowering specific protein activity or replacing FMRP's ability to regulate translation.
Researchers have discovered a new mechanism in regulating human genes by enabling pre-mRNA splicing. The U2AF protein plays a crucial role in this process, which involves the cooperation of different proteins to remove introns and form mature mRNA. This process is essential for genetic information flow from DNA to RNA to proteins.
Researchers discovered that microRNA levels increase or decrease in the zebra finch brain after hearing a new song. This finding suggests that microRNAs play a regulatory role in fine-tuning the brain's response to social information.
Researchers found that the lack of structure on messenger RNA facilitates protein synthesis, even without a Shine-Dalgarno sequence. The absence of secondary structures on these mRNAs makes it easier for ribosomes to access and identify the start codon.
Scientists uncover a highly conserved dual mechanism that regulates both brain development and function across diverse species. The discovery could lead to biomarkers for neurological diseases and potentially cure them with microRNA therapeutics.
Researchers at the Broad Institute have developed a method to measure how much messenger RNA is produced and degraded, revealing dynamic changes in RNA levels over time. The technique allows for high-resolution and comprehensive views of the RNA lifecycle, enabling scientists to investigate what happens when something goes wrong in cells.
Researchers at Albert Einstein College of Medicine observed the activity of a single gene in living yeast cells, tracking mRNA production and transcription initiation. The study provides new insights into how genes are regulated in single-celled organisms like yeast, which can inform our understanding of similar processes in humans.
Researchers have uncovered how yeast cells recognize and assemble cargo mRNA for transport, a process critical for cell function. The discovery sheds new light on the mechanisms underlying molecular transport in both simple and complex organisms.
A recent study by Ohio State University researchers has identified a gene mutation that causes microcephalic osteodysplastic primoridal dwarfism type 1 (MOPD1), a rare developmental disorder. The defect, triggered by a tiny gene mutation, greatly slows growth in the uterus and causes severe brain and organ abnormalities.
A Johns Hopkins Medicine study found that human endogenous retrovirus K (HERV-K) may be responsible for some cases of ALS, a neurodegenerative disease. Researchers identified HERV-K mRNA transcripts in the brains of ALS patients and found that they were present in areas surrounding the motor cortex.
Researchers describe the mechanism of blockade and reactivation in molecular detail, revealing TFIIS's role in facilitating mRNA excision. This process is essential for cell survival and regulates gene activity in stem and tumor cells.
Researchers have identified a new way genes are regulated that is unique to primates, involving Alu elements and long noncoding RNAs. This mechanism could prove to be a valuable treatment target as researchers seek to manipulate gene expression to improve human health.
Researchers have developed a new method for treating genetic diseases using modified mRNAs, which can be administered repeatedly without increasing the risk of cancer or severe immune reactions. In mouse models, this technique successfully restored lung function in mice with a congenital lung defect.
Scientists at Albert Einstein College of Medicine successfully visualized single molecules of naturally-occurring messenger RNA (mRNA) transcribed in living mammalian cells. This breakthrough technique has important consequences for human disease like cancer, as mRNA localization within tumor cells correlates with metastasis.
Researchers at Albert Einstein College of Medicine have developed a microscope apparatus that achieves unprecedented resolution in living cells, allowing them to visualize the dynamic mechanism by which messenger RNA molecules pass through nuclear pores. This breakthrough could lead to treatments for disorders such as myotonic dystrophy.
Researchers have discovered a new function of interferons, which inhibit the production of IL-1beta protein and suppress inflammation. This finding has significant implications for treating autoimmune and inflammatory diseases.
Researchers at MIT have created a new technique using RNA to reprogram human skin cells into an immature state that can develop into any cell type. This approach holds promise for treating diseases by transforming patients' own cells into replacements, while eliminating the risks associated with current DNA-based methods.
Scientists are studying microRNAs as potential therapeutics for a range of applications due to their role in various cellular processes. Investigations have shed light on the role of miRNAs in cancer, particularly in controlling developmental events and cell growth.
Scientists have identified a molecular master switch that catalyzes the transition of precursor cells to mature oligodendrocytes in the brain. The molecule miR-219 plays a crucial role in this process, which has implications for treating diseases such as multiple sclerosis and gliomas.
Researchers found that random fluctuations in gene expression can cause some individuals to express a trait even if they have the mutated gene. This phenomenon is controlled by specific fluctuations in mRNA production and appears to be influenced by environmental factors.
Scientists at EMBL have visualized the molecular mechanism responsible for oskar mRNA transport in Drosophila. By combining immunofluorescence with electron microscopy imaging, they defined a hierarchy of RNA particle assembly. This breakthrough sheds light on development and neuronal function, including synaptic plasticity and learnin...
Researchers at Texas A&M University have found that PatA inhibits nonsense-mediated mRNA decay (NMD), a mechanism that degrades damaged mRNA. This inhibition may lead to cancer cell apoptosis. The study also reveals the potential of a simplified derivative of PatA, DMDAPatA, as an anti-cancer agent.
Researchers determine the three-dimensional structure of Pur-alpha protein, essential for normal neural function, and gain insights into its molecular function. The findings provide a possible basis for developing an effective therapy for Fragile X tremor/ataxia syndrome.
Researchers from UNC Health Care have discovered a crucial link between the synthesis of histone messenger RNA and apoptosis, a normal biochemical response to cell damage. The study identifies FLASH protein as essential for producing histone proteins, which regulate gene expression.
Scientists have found that the ends of mRNAs may play a role in preventing normal cells from becoming cancerous. In normal cells, long 3'UTRs regulate gene expression, but in cancer cells, these regulatory sequences are often lost, leading to overproduction of proteins and uncontrolled cell growth.
University of Wisconsin-Madison researchers found a new site for RNA degradation initiation, challenging existing assumptions about the process. The discovery involves CRD-BP, a protein that prevents RNA from degrading in this location.
A single genetic event explains the short legs of all short-legged dog breeds, including dachshunds and corgis. The discovery provides new insights into human developmental disorders and may lead to a better understanding of hypochondroplasia, a growth disorder affecting some people.
A new study reveals three distinct profiles of gene expression in the songbird brain, showing how birds remember and process new songs. Gene activity changes were observed even 24 hours after the initial stimulus, suggesting that memory formation is still ongoing.
Researchers have identified a genetic link between periodontitis and coronary heart disease (CHD), with a shared genetic variant located on chromosome 9. The study found that the genetic variation associated with both diseases is identical, indicating a strong genetic basis for the connection.
Researchers at EMBL have discovered a promising drug target in influenza virus, specifically the PA subunit responsible for cleaving host RNA caps. This finding provides new insights into the cap snatching mechanism that allows the virus to hijack human cells and multiply.
Scientists have found that nearly all human genes, about 94 percent, generate more than one form of their protein products through alternative splicing. The phenomenon varies significantly between tissues, with mRNA expression dependent on the tissue where the gene is expressed.
Neuroscientists at Georgetown University Medical Center found that transportation of brain transcripts is essential for growth and connection between neurons, forming the basis of memory and learning. This discovery may provide clues to understanding mental retardation and overall brain functioning.
The Shilatifard Lab discovered that ELL plays a critical role in regulating gene expression by causing temporary interruptions of Pol II transcription in fruit flies. This finding has implications for understanding the pathogenesis of childhood leukemia and developing targeted therapeutics.
Researchers have identified a crucial protein that transports signals within neurons, shedding light on Fragile X Syndrome's impact on brain development and communication. This breakthrough could lead to the development of innovative treatments for FXS, autism, and epilepsy.
A team of researchers has observed the dynamic, ratchet-like movements of single ribosomal molecules in protein building, revealing a key mechanism for cell survival. The spontaneous back-and-forth rotation between subunits allows the ribosome to advance along messenger RNA as proteins are built.
Pol II selects correct NTPs to add to mRNA chains with exquisite precision, using a kinetic selection mechanism that involves the trigger loop. The study reveals how Pol II discriminates against incorrect NTPs and sheds light on the mechanisms of fidelity in cellular genetic copying machines.
Researchers at EMBL and CNRS identified the key protein domain responsible for binding to host RNA molecules, allowing the virus to multiply. The PB2 cap-binding site is a promising target for designing mimics of the cap that would inhibit viral replication.
A study found increased expression of FoxP3 mRNA and higher frequency of regulatory T cells in patients who responded to Adacolumn treatment with remission of symptoms. However, these changes were not observed in non-responding patients.
A team of MIT researchers has devised a new method to analyze gene expression in complex microbial populations, providing insights into the role of oceanic bacteria in regulating Earth's natural cycles. The technique has yielded surprising discoveries, including the identification of previously unknown bacterial genes and their functions.
Researchers found that axonal CREB plays a key role in transmitting signals from the growth cone to the nucleus, ensuring neuron survival. This discovery sheds new light on neural development and may have implications for treating neurological diseases such as Alzheimer's.
A recent study by Kristian E. Baker and Ambro van Hoof directly challenged the 'faux 3' UTR model of mRNA decay, revealing a critical flaw in the existing understanding of this process. This breakthrough discovery has significant implications for gene expression regulation and potential therapeutic strategies for genetic diseases.
Researchers discovered that uridine residues are added to the 3' end of histone mRNAs, decapping and degrading them via the general mRNA decay machinery. This work represents a new mechanism regulating the half-life of specific mammalian mRNA transcripts.
Researchers developed a morpholino antisense oligonucleotide to correct the abnormal inclusion of exon 7a in ClC-1 mRNA, restoring chloride channel function and eliminating myotonia in mice with DM1. This approach may potentially treat myotonia in individuals with DM1.
Researchers from Baylor College of Medicine found that viral infections like poliovirus target a protein called G3BP, which helps cells respond to stress. This disruption prevents the virus from being translated into proteins and killing the cells.
A new genetic study from the University of Iowa found that women are more likely than men to have altered serotonin processes related to depression. The study, which analyzed data from 192 individuals, suggests that genetic variations may play a role in tailoring antidepressant treatment for individual responders.
Fragile X tremor/ataxia syndrome (FXTAS) is a recently identified neurological disorder affecting middle-aged adults, causing Parkinson's-like symptoms and cognitive decline. Researchers discovered that the mutation causing FXTAS triggers a failure of messenger RNA transport within neurons, leading to lethal clogging of brain cells.
A new neurodegenerative syndrome, fragile X-associated tremor/ataxia syndrome, has been identified as triggered by the interplay of two proteins binding to messenger RNA. Individuals with this condition exhibit higher levels of mRNA and experience tremors, balance issues, and difficulty with daily activities.
Researchers found a small molecule, microRNA, essential for controlling floral organs' identity in plants. This discovery contradicts the long-held ABC model of floral organ development, suggesting a more complex temporal control mechanism.
MicroRNAs regulate cell division and development by blocking protein synthesis at its earliest stage, translation. Researchers developed a new method to study microRNA action in a test tube, revealing that they bind to messenger RNAs and prevent their translation into proteins.
Researchers studied fruit flies and wasps, finding that they use most of the same genes with similar interactions, but with some modifications to accommodate developmental constraints. The study reveals the generality of developmental mechanisms across species, providing new insights into the workings of genetic pathways.
Researchers at The Wistar Institute discovered that microRNAs can undergo molecular editing, redirecting them to target and silence entirely different sets of genes. This process has significant physiological consequences, such as altering the production of essential enzymes involved in synthesizing uric acid.
Researchers discovered a novel mechanism controlling human growth hormone (hGH) gene expression through non-coding RNAs. This finding may lead to the development of therapeutics for hGH defects and a better understanding of genetic disorders.
Scientists at the University of Texas Medical Branch have discovered a unique mechanism used by the SARS coronavirus to evade the immune system. The virus's nsp1 protein breaks down messenger RNA instructions that trigger the production of interferon beta, crucial for host immunity.
Researchers at Ohio State University found that RHA regulates the production of growth-proteins, many of which play a role in cancer, and helps viruses establish infections. The study identifies additional genes that require RHA for translation, shedding light on cell regulation and viral mechanisms.
Researchers discover precursor miRNAs undergo specific RNA editing, suppressing expression and activity. This finding expands our understanding of the complex process of gene regulation, with implications for embryonic development, cell differentiation, and cancer formation.