Articles tagged with Adenosine Triphosphate
The new ACC/AHA guidelines for statin eligibility better predict cardiovascular risk by considering coronary artery plaque levels. The guidelines were found to identify adults at higher risk more accurately than previous guidelines, leading to a potential reduction of 41,000 to 63,000 cardiovascular events over 10 years.
Fireflies produce light through a chemical reaction involving luciferin and ATP, but intermediate steps were unclear. Researchers explored enzyme luciferase, finding that a single electron transfer occurs during the final step, suggesting a unifying feature of bioluminescence.
Researchers found that the KaiC protein encodes the Earth's 24-hour rotation period at an atomic level. The protein's structure and reactivity regulate molecular rhythms, which could lead to new therapies for circadian rhythm disorders.
Researchers at NYU Langone discovered that mitochondria are essential for stem cell development, directly controlling the growth and maintenance of inner membranes inside mitochondria. The study found that blocking ATP synthase stalled egg cell development from stem cells in fruit flies.
Researchers at KAIST have solved the mystery of how NSF disassembles a SNARE complex. They found that NSF requires only one round of ATP hydrolysis to unwind the complex, contrary to previous theories. This discovery sheds new light on membrane fusion and vesicle traffic in cells.
Researchers from RIKEN Brain Science Institute have made significant strides in understanding the mechanism of dynein's movement along microtubules. The study found that specific amino acid residues on the microtubule structure play a crucial role in activating the dynein motor, enabling directional movement and cargo transport.
New research suggests CD39, an enzyme capable of clearing high levels of adenosine triphosphate from the bloodstream, significantly improves survival of mice in severe sepsis. This discovery holds promise for effective treatment and reduction of costs associated with septic patients in intensive care units.
Researchers at Technical University of Munich used FRET methodology to observe interaction between Hsp90, P23 and ATP. They found that P23 strengthens ATP bonding, increasing energy production. This breakthrough reveals the importance of cooperation in cellular energy generation.
Intestinal alkaline phosphatase (IAP) promotes beneficial bacteria growth by blocking ATP's growth-inhibiting action. The study reveals IAP's role in maintaining intestinal microbial balance and its potential as a simple therapy for health problems caused by imbalance.
Researchers have found a potential target for treating mitochondrial disorders, a condition that affects cellular energy production. The study suggests that blocking the gene ATPIF1 may be therapeutic in rescuing cells from mitochondrial dysfunction.
Researchers at the University of Missouri have identified plant receptors that aid in plant development and repair, triggered by ATP signals. This discovery could lead to naturally occurring herbicides, fertilizers, and pesticides that work with plants to enhance their strength.
Researchers discovered that ATP-sensitive potassium channels in skeletal muscle play a crucial role in regulating energy consumption even during mundane activities. By modulating KATP channel activity, new strategies may be developed to combat metabolic disorders such as muscle wasting and obesity.
A novel approach predicts heart failure outcomes in patients by targeting impaired energy metabolism, a diseased heart's underlying mechanism. This method could help tailor therapeutic interventions and improve treatment planning for physicians.
A new drug called Bendavia has been shown to prevent acute kidney injury (AKI) in animal models and is currently being studied for kidney disease. By protecting the unique fatty compound cardiolipin, Bendavia helps preserve mitochondrial structure and function, leading to accelerated ATP recovery and reduced cell death.
A study analyzed 275 endoscopes and found 30% to fail cleanliness ratings, with duodenoscopes failing at the highest rate. The study highlights the need for improved cleaning protocols and guidelines to prevent infections.
Virginia Commonwealth University researchers have gained insight into how Hsp70, a key molecular player, binds with ATP to enhance its activity and efficiency. This understanding paves the way for designing efficient small molecule drugs to specifically modulate Hsp70's function, potentially treating cancers and neurodegenerative disor...
A study found that increasing detection intervals in ICDs reduces unnecessary therapies, shocks, and hospitalizations while maintaining appropriate shock frequency. The long-detection strategy may be a useful approach for ICD recipients to reduce unfavorable outcomes.
Researchers have discovered a new mechanism of DNA helicase that utilizes thermal motion to move long distances along DNA, providing an energy-efficient way to unwind double-stranded DNA
Researchers at the University of Helsinki discovered that the Myc oncoprotein makes cancer cells vulnerable to cell death by activating AMPK, a biochemical sensor. This leads to the activation of tumor suppressor protein p53, which promotes apoptosis in cancer cells.
A study led by University of Washington researchers shows that genetic engineering can increase dATP levels in heart cells, leading to improved heart muscle function and greater force of contraction. The findings suggest a potential therapeutic treatment for heart failure conditions.
Researchers from Berkeley Lab and Max Planck Institute analyze unique microbial motor, revealing a dynamic play among its components. The study found that the archaellum consists of two parts, with a globular C terminal domain connected to a more variable N terminal domain.
Researchers at Arizona State University have fabricated an artificial protein and examined its effects on living cells, revealing a peculiar set of adaptations including filamentation, ATP depletion, and the formation of endoliposomes. These findings may lead to the development of novel therapeutic agents.
A team of scientists from the University of Pennsylvania School of Medicine and Temple University discovered an essential mechanism that regulates calcium uptake into mitochondria, crucial for ATP synthesis. The newly described protein MCUR1 interacts with MCU to establish proper calcium levels under normal conditions.
A new therapy for a rare form of cystic fibrosis has been developed using an unconventional approach. The drug, VX-770, was found to open both normal and mutant CFTR channels without the need for ATP, a molecule that normally regulates channel activity.
Researchers discovered MICU1's crucial role in regulating mitochondrial calcium uptake, preventing overload and cellular stress. The protein acts as a gatekeeper, setting a brake for calcium influx to maintain beneficial levels.
Researchers at Scripps Research Institute have discovered a genetic sequence that can alter its host gene's activity in response to cellular energy levels, a finding that could have broad implications for biology and medicine. The energy-sensing switch, known as a riboswitch, detects the molecule ATP and controls global metabolic regul...
Researchers found that high fructose intake is associated with more severe depletion of liver ATP, a compound involved in energy transfer between cells. Elevated uric acid levels may serve as a marker for increased fructose consumption and hepatic ATP depletion.
Researchers at Arizona State University's Biodesign Institute developed the Cellarium, a live cell array technology that enables unprecedented insights into individual cell behavior. The system allows for dynamic measurements of live single cells, providing valuable clues to health and disease.
Researchers from RUB have dynamically measured ATP splitting in membrane protein MsbA for the first time, tracking minute changes in the protein and its interaction with ATP. This study provides important clues on how the protein moves during ATP hydrolysis, laying the foundation for further investigation into whole membrane proteins.
Research identifies pivotal role of proteins in cellular and disease processes, shedding light on neuromuscular disorder and cancer connections. The study found that impaired Mpc1 and Mpc2 lead to deadly health problems, including the neuromuscular disorder.
Researchers found that increased fructose consumption depletes cellular energy in obese and diabetic individuals, leading to decreased ATP stores and increased risk of nonalcoholic fatty liver disease. Measuring uric acid levels may help doctors predict the presence and monitor the severity of this condition.
Researchers from TUM proved that Hsp90 utilizes thermal fluctuations as the driving force for its conformational changes. Key findings show that the chaperone protein is highly flexible and can switch between conformations using random environmental collisions, saving valuable ATP energy.
Researchers observe helicase enzymes unzipping DNA by manipulating single molecules and observing nucleotide effects. They found ATP can cause unwinding, but only in single-molecule studies.
The ASU research group is studying the FoF1 molecular motor using a gold nanorod attached to the c-ring, which allows them to measure the rotary motion of the c-ring. They have found that the rotation is periodically interrupted, similar to a ratchet mechanism, and are exploring its potential for use in synthetic molecular motors.
Researchers at Scripps Research Institute have made a groundbreaking discovery about the structure of the MRN DNA repair complex, revealing its powerful molecular motor workings. The finding has implications for designing non-toxic drugs to treat disorders such as cancer and cystic fibrosis.
Scientists identified a previously unknown mechanism for massive endocytosis (MEND) in cells, where up to 75% of the cell plasma membrane can be reversibly engulfed. MEND preferentially targets low-ordered, cholesterol-containing membrane domains.
Researchers at Washington State University have discovered a key mechanism behind sleep, which could lead to the development of new treatments for fatigue and sleep disorders. The finding reveals how brain activity is linked to sleep and provides potential targets for medications.
Researchers at Mount Sinai School of Medicine have gained atomic-level insight into how organisms synthesize their major form of chemical energy using the enzyme ATP synthase. The discovery provides a clearer understanding of how these nano-machines function, including the role of water molecules in the rotary mechanism of ATP synthesis.
A team of scientists has provided the first atomic-level glimpse of the proton-driven motor from ATP synthases, enzymes central to cellular energy conversion. The study revealed a water molecule in the critical rotor element of a bacterial nano-motor that shares common features with human mitochondria and bacteria.
Researchers at OHSU School of Dentistry use ATP-driven bioluminescence to assess children's oral bacteria and plaque, linking it to caries risk. The study finds a strong statistical association between ATP measurements and bacterial numbers in saliva and plaque specimens.
Researchers found pyrophosphite, a molecule similar to ATP, could transfer energy without enzymes. This discovery suggests that pyrophosphite played a role in the emergence of complex biology and potentially provided power for early lifeforms.
A team of researchers has discovered that kinesin proteins use a string of water molecules to harness the energy of ATP breakdown. This breakthrough reveals a critical role for water molecules in cellular function and may lead to novel drugs to combat diseases. The study provides a clearer picture of how cells function and flourishes.
Researchers at Baylor College of Medicine and Stanford University discovered how Group II chaperonins in archaea close folding chambers to initiate protein folding events. The molecular nanomachine requires ATP to open and close its chambers, leading to the release of functional proteins.
Two Duke undergraduates, Sarah Steele and Langtian Yuan, identified compounds that inhibit the enzyme protein kinase C zeta (PKCzeta) in brain chemistry changes involved in memory and learning. Their discovery may lead to a new remedy for methamphetamine and cocaine addiction.
Researchers have uncovered the critical action shapshot of an enzyme known as the Rho transcription termination factor, a remarkable class of ring-shaped protein motors. The study reveals a rotary engine-like mechanism that enables the motor to selectively terminate transcription at discrete points along the genome.
A common food additive, Brilliant Blue G, has been identified as a potential treatment for spinal cord injury. The compound stops the cascade of molecular events that cause secondary damage, allowing patients to recover from paralysis. Researchers have successfully tested BBG in rats with spinal cord injuries, showing promising results.
Researchers found that 31P MRS can detect changes in liver ATP levels related to liver damage score and pathologic changes. The study showed significant differences in ATP quantification among groups, indicating its potential as a non-invasive method for detecting early acute hepatic radiation injury.
A new study suggests that patients with high cholesterol receive better care when physicians use a variety of tools, including PDAs, to learn and apply clinical practice guidelines for treating the condition. This multifaceted strategy improved guideline adherence by reducing over-treatment and increasing appropriate treatment decisions.
Researchers investigate how high blood pressure affects tiny kidney filters, known as glomeruli. They believe that damaged kidney filters worsen hypertension and that inflammation plays a crucial role in the process.
A new study reveals that an investigational drug, R207910, is effective in killing latent tuberculosis bacteria. The drug targets a protein essential for energy production in active TB, suggesting a potential Achilles heel for dormant bacteria.
Scientists have identified a key step in ATP recycling and its low-energy counterpart ADP's interaction with the mitochondrion. The simulation reveals how ADP disrupts ionic bonds to unlock the door to mitochondrial entry.
A new study reveals that lactate dehydrogenase C (LDHC) enzyme plays a critical role in male fertility, affecting sperm motility and ATP production. Meanwhile, research on polycystic ovary syndrome (PCOS) suggests prenatal exposure to androgens may contribute to infertility symptoms.
Researchers found that niacin works by reducing the presence of Beta chain on liver cells, which hinders HDL removal and maintains high plasma HDL levels. This new mechanism explains why niacin is especially beneficial for raising HDL while allowing other cholesterol types to be removed.
The researchers studied the archaeal version of Rad3, a unique helicase involved in DNA repair. The findings revealed that the integrity of an iron-sulfur cluster is crucial for proper function of the enzyme.
Researchers develop biosensors that track metabolic activity and diagnose unhealthy conditions in obesity. ATP's role in metabolism makes it a potential target for early diagnosis and treatment of metabolic syndrome.
The National Institute of Standards and Technology (NIST) has awarded $138.7 million in funding to 56 innovative technology projects, including medical diagnostic techniques and alternative energy sources. The projects were selected through a competitive, peer-reviewed process and represent a total potential investment of up to $342.7 ...
An interdisciplinary team of researchers analyzed the simplest known biological clock and found that the protein KaiC, combined with KaiA and KaiB, creates a complex system to regulate biochemical processes. The study reveals that the proteins form a dynamic mixture of complexes at different stages of their cycles.
During intense exercise, muscles rely on anaerobic metabolism for force production, leading to muscle fatigue and impaired performance. The study found that the mechanisms of muscular fatigue are similar to those discovered in laboratory research on cell and tissue samples.
Researchers at University of Bristol have made a major breakthrough in measuring energy levels inside living heart cells, real-time. This could lead to better understanding of heart disease and improved recovery of the heart during cardiac surgery or after a heart attack.
The new multi-functional imaging technique combines AFM and SECM functionality to provide a holistic view of biological activities at the cell surface. Researchers have demonstrated its effectiveness in studying ATP release in live epithelial cells, shedding light on cystic fibrosis.