Articles tagged with Protein Complexes
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Researchers from the University of Tennessee at Knoxville developed a new statistical method that improves analysis in single-molecule fluorescence experiments. The method combines theoretical work from mathematics with experimental work from molecular biology, allowing for more accurate and efficient data analysis.
Researchers at Cold Spring Harbor Laboratory have deciphered the first step in DNA replication, a process crucial for life. The study identifies over 100 proteins essential for this mechanism, which enables cells to duplicate genetic material efficiently.
A team from Kyushu University has discovered that the smallest known protein-based tRNA-processing enzyme, HARP, forms a star-shaped complex to cut both ends of tRNA. This finding sheds light on how HARP processes the 5' leader sequence and reveals a new mechanism for RNA processing.
Researchers at EPFL have created ultra-selective aptamers that target specific binding sites on viral spike proteins with unprecedented precision. These multivalent binders show stronger and more selective binding affinities than traditional monovalent binders, making them promising for biomedical diagnostics and therapeutics.
Researchers discovered temperature influences plant cell fate by regulating epigenetic marks. Low ambient temperatures can rescue developmental defects by compensating for PRC2 loss, highlighting the importance of H3K27me3 in maintaining cellular identity.
A novel mechanism linking fetal anemia to disrupted intracellular iron distribution has been identified due to impaired mitochondrial protein synthesis. Mitochondrial tRNA modification enzyme Mto1 plays a crucial role in efficient protein synthesis and maintaining proper iron homeostasis.
New research identifies specific populations of neurons in the amygdala that play a key role in regulating nutritional needs and turning them into action. The study reveals distinct groups of neurons responding to thirst and hunger, guided by molecular cues.
Cells dynamically adjust nuclear pore complexes like a retail store opening more checkout lines to regulate genome access. Research findings suggest that protein creation and disposal systems control the amount of NPCs in cells.
Scientists at Sanford Burnham Prebys developed a new method of generating antibodies by fusing two immune system proteins, enabling the creation of stable monoclonal antibodies. This breakthrough has potential applications in diagnosing and monitoring diseases such as lupus and cancers.
Researchers at the University of Basel discovered that mitochondrial proteins assemble into large supercomplexes, crucial for providing cells with energy. These findings may lead to insights into human diseases and biotechnology applications.
The review article examines the relationship between anemia and retinopathy of prematurity, focusing on iron deficiency and underlying molecular mechanisms. Anemia reduces oxygen delivery to the retina, exacerbating hypoxia and promoting pathological neovascularization.
Ancient bacteria can respire carbon dioxide and hydrogen into acetic acid to produce ATP. A new mechanism involving sodium ions is activated when acetic acid is produced, driving a molecular turbine that generates energy.
The Crew-10 mission will support cutting-edge biomedical investigations and NSF-funded physical science projects through the ISS National Lab. Astronauts will conduct experiments on the International Space Station, with findings benefiting humanity and driving commerce in low Earth orbit.
Researchers have identified a protein shuttling mechanism in bacteria that enables them to pump out a wide spectrum of antibiotics. This complex of proteins, known as MacAB-TolC, forms a conduit that drains out not only antibiotics but also virulence factors.
Researchers in the Galej Group at EMBL Grenoble have provided new structural insights into the U11 snRNP subunit of the minor spliceosome, revealing its ability to specifically identify rare substrates. The study sheds light on the complex assembly pathway of the minor spliceosome, which is critical for processing minor introns in genes.
Researchers at McGill University found that a protein produced in muscles helps manage the release of follicle-stimulating hormone (FSH), which promotes egg maturation. Lowering myostatin levels delayed puberty and reduced fertility, while restoring it boosted FSH levels.
Scientists from DZNE found that preventing brain inflammation may help treat Alzheimer's disease. The study, published in Immunity, suggests that inhibiting the NLRP3 inflammasome can reduce neuroinflammation and help microglia clear harmful amyloid-beta deposits.
Researchers at King's College London have developed a complex model of molecular 'wear-and-tear' that sheds light on how proteins age. The study found that chromatin, the DNA-protein mix, is more resilient to aging than previously thought, suggesting new avenues for anti-aging treatments.
Researchers have discovered a complex mechanism that allows bacteria to build resistance to antibiotics, involving a KorB-KorA regulatory system. This finding offers a fresh insight into long-range gene silencing in bacteria and provides a potential target for novel therapeutics.
Researchers at EMBL Grenoble identified significant differences between the trypanosomal and human nuclear cap-binding complex, a key player in cellular RNA metabolism. The study reveals major differences that could serve as a potential drug target for treating neglected tropical diseases.
The EPFL team has developed a deep-learning pipeline called MaSIF to design new proteins that interact with therapeutic targets. They have successfully designed novel protein binders that can recognize and bind to drug-protein complexes, offering potential applications in cell-based therapies and biosensors.
Researchers have developed a new geometric machine learning method called MaSIF, which enables the design of proteins that bind specifically to desired molecular structures. This approach accelerates precision drug development by allowing for precise dosing and control of biological drugs.
A recent study has discovered that saliva contains special vesicles with extrinsic tenase complexes, which trigger rapid coagulation of the blood in haemophilic patients. This finding provides significant contributions to understanding the disease and its treatment options.
Researchers designed metallo-supramolecular complexes that selectively bind to MPXV mRNA G4, modulating A5L protein expression and immune response activation. These findings highlight the significance of G4s in viral immunodominant protein expression and offer potential avenues for developing antiviral therapeutics.
Researchers have discovered a nucleolar complex that plays a pivotal role in maintaining cellular health through protein homeostasis, allowing for the dramatic reduction of toxic effects of Alzheimer's-causing proteins. This breakthrough offers hope for new therapies to slow or prevent neurodegenerative diseases, promoting healthy aging.
Researchers characterize the mysterious C-terminal domain of dystrophin and its role in stabilizing cellular membranes across various tissues. The study reveals that dystrophin's CT domain interacts differently with two major dystrobrevin isoforms, driving differences in binding affinity and interaction modes.
Researchers at UMass Amherst have identified Hsc70 as a vital chaperone protein that ensures SNAP-25's proper functioning in neurotransmission. The study sheds new light on the underlying mechanics of neurodegenerative diseases like Alzheimer's and Parkinson's.
A new Northwestern Medicine study reveals how metformin lowers glucose levels by targeting mitochondrial complex I in cells. The drug also improves COVID outcomes and reduces inflammation, suggesting that mitochondrial complex I inhibition may be a unifying mechanism behind its diverse effects.
Researchers discovered a novel platinum complex that targets androgen receptor signaling, inhibiting cell growth and survival in prostate cancer cells. The complex, 5-H-Y, showed stronger cytotoxic effects than cisplatin with minimal toxicity, offering a promising approach to treating advanced prostate cancer.
Researchers identified critical proteins involved in animal stem cell regulation, including SOX and POU transcription factors, which existed in single-celled organisms over 700 million years ago. These ancient proteins retained functional properties that enabled them to induce stem cell reprogramming in mouse cells.
Researchers at Radboud University Medical Center developed a super microscope that combines live imaging and electron microscopy, allowing visualization of protein complexes in real-time. This technique opens up new avenues for studying arterial calcification and its potential link to COVID-19 vaccine entry.
Researchers at Linköping University have developed a new version of AlphaFold that can predict the shape of very large and complex protein structures, integrating experimental data. This breakthrough aims to improve the development of new proteins for medical drugs.
Scientists have identified a molecular mechanism that eliminates defective cells during faulty cell division, shedding new light on the fundamental processes involved. The discovery could lead to more effective treatments for blood cancer by targeting cells with multiple centrosomes, which are a hallmark of disrupted division.
Researchers at Osaka Metropolitan University have discovered a key protein involved in transporting boron into plant cells. The protein complex, containing KNS3 and its homologs, facilitates the movement of boric acid channels from endoplasmic reticulum to plasma membrane.
Osaka Metropolitan University researchers developed a new approach to analyze the 3D structure of lab-made photosynthetic antenna protein complex LHCII. Their findings validated natural antenna mimicry in artificial photosynthesis, showing only minor differences between lab-created and natural LHCII.
Researchers at ETH Zurich have developed a method to study protein interactions using LiP mass spectrometry, identifying thousands of interaction interfaces between proteins. They found that stress situations alter around five dozen protein complexes and their interactions, with a key player being the SAGA complex.
Plant cells use a mechanism called telescripting to monitor and control protein production, preventing premature completion of gene expression. This process is crucial for maintaining accurate gene function and has potential applications in making plants more resistant to climate change.
A new method to construct protein complex-based therapeutics has been discovered using a polymer cloak, which stabilizes the delivery of protein complexes and enables tumor-targeted immunomodulation. The study presents an IL-15 nanosuperagonist with enhanced efficacy and specificity, promising a safer therapy for cancer treatment.
A research team has developed a simplified synthesis method for organic fluorophores using formaldehyde, reducing molecular size and increasing atomic efficiency. The new technique can also be applied to in vivo environments, showing promise for life sciences research and diagnostics applications.
Researchers at Mizzou have developed Cryo2Struct, a computer program that uses AI to build the three-dimensional atomic structure of large protein complexes from cryo-electron microscopy images. This breakthrough enables scientists to better understand protein interactions, critical for developing effective treatments for diseases like...
Researchers at Weill Cornell Medicine have created a powerful interactive tool called Connecting Omics (COmics) to investigate the complex molecular make-up of humans. The study identifies associations between genetic characteristics, proteins, metabolic processes, and diseases, shedding light on different ways type 2 diabetes manifests.
Researchers at the University of Copenhagen have identified the protein complex that enables the hepatitis C virus to infect cells. This discovery is a significant step towards developing a vaccine against the disease, which causes chronic inflammation and 300,000 deaths annually worldwide. The study's results, published in Nature maga...
A study revealed that PLK1 triggers a process coordinating key proteins at the right place and time during cell division. This ensures each new cell has a centromere in the correct location.
Researchers at Montana State University have published a study in Nature describing the discovery of the PARIS immune system, which uses tRNA to neutralize viral infections. The team used advanced microscopy techniques to visualize the system's structure and function.
Researchers developed MUSCLE, a method that combines single-molecule fluorescence microscopy with next-generation sequencing to profile complex biological processes. The technique enables simultaneous observation of vast arrays of samples, uncovering general trends and dynamic signatures.
A new study reveals that fasting helps regenerate and heal intestinal injuries, but also increases the risk of developing early-stage intestinal tumors in mice. The researchers identified a pathway enabling this enhanced regeneration, which is activated during refeeding after fasting.
A new study from the Cusack group sheds light on how avian influenza virus can mutate to replicate in mammalian cells. The key enzyme polymerase must adapt to overcome two main barriers: entering and replicating within host cells, as well as acquiring human transmission capabilities.
Scientists have clarified how the DDM1 protein prevents 'jumping gene' transcription by making it accessible to suppressing chemical marks. This discovery has implications for understanding genetic conditions and developing new treatments for humans.
A team of scientists captured a clear picture of the structural changes and intermediates that form during the initial stages of RNA polymerase binding to DNA. The findings provide new insights into the fundamental mechanisms of transcription and shed light on long-standing questions about the initiation mechanism.
A new study developed an AI-based approach, DiffPALM, to predict protein interactions with high accuracy, outperforming traditional methods. This advancement has significant implications for drug development and disease treatment, and the researchers have made it freely available for further research.
The CCR4-NOT complex plays a crucial role in regulating RNA metabolism and stress response in C. elegans, compromising stress resistance and decreasing lifespan when depleted of subunits. This study highlights an important new role for the CCR4-NOT complex in normal aging and longevity.
Researchers identified protein JUN as a potential therapeutic option to slow tumor growth in prostate cancer, contradicting previous findings that linked high JUN levels to increased tumor growth. The study showed that JUN slows tumor progression and improves immune response, providing a new starting point for therapy development.
Scientists at Salk Institute discover a molecular mechanism that helps macrophages mount a coordinated response tailored to a specific immune challenge. The discovery reveals new immune system mechanisms that could be targeted with therapeutics to regulate inflammation.
A recent study has identified Nup358 as a critical regulator of myeloid cell development, revealing its role in the differentiation process of early progenitors. The findings provide insights into how alterations in Nup358 contribute to blood malignancies and may lead to novel therapies targeting transport machinery like NPCs.
Researchers elucidated the spatial structure and molecular mechanisms of 'prime editor,' a novel gene-editing tool that achieves reverse transcription without DNA cutting. This breakthrough contributes to designing gene-editing tools accurate enough for gene therapy treatments, opening new avenues for both basic and applied research.
A CNIC study explores the mechanisms of supercomplex assembly and uncovers a major impact of mitochondrial assembly factors on cardiac regeneration. The researchers found that Cox7a1 plays a fundamental role in forming CIV dimers, which are crucial for correct mitochondrial function.
Scientists at Umeå University have identified how a protein complex called the Mediator regulates gene expression, leading to slower cell division. This discovery may pave the way for new treatments for diseases related to uncontrolled cell growth, such as tumors.
Scientists at Umeå University developed a natural product-like molecule Tantalosin that inhibits interaction between proteins reshaping membranes inside cells. The study reveals a new noncanonical autophagy pathway and potential benefits for cancer treatment.
A team of researchers has discovered the role a specific protein complex plays in certain forms of immune dysregulation. SHARPIN deficiency is linked to autoinflammation and immunodeficiency, but unexpectedly does not manifest dermatological issues. Treatment with anti-TNF therapies resolves symptoms.
Researchers identified a complex of two proteins called Gabija that enhances the blockage of phage replication in bacteria. The study found that one protein alone can disable a phage's DNA, but the complex formed with its partner protein is more effective at preventing phage takeover.