Molecular Biology

Molecular Biology News -- ScienceDaily Molecular biology. Read the latest research on molecular biology or search thousands of news articles with images from leading universities and research institutes.

  • New innovations in cell-free biotechnology
    on March 23, 2018 at 5:27 pm

    A new platform to conduct cell-free protein synthesis could lead to improved quality of manufactured protein therapeutics and biomaterials. […]

  • Growing and surviving: How proteins regulate the cell cycle
    on March 23, 2018 at 2:48 pm

    Cell division is the basis of all life. Even the smallest errors in this complex process can lead to grave diseases like cancer. Certain proteins have to be switched on or off at certain times for everything to go according to plan. Biophysicists and medical biochemists have managed to describe the underlying mechanism of this process. […]

  • Bacteria eat greenhouse gas with a side of protein
    on March 22, 2018 at 7:03 pm

    With the ability to leech heavy metals from the environment and digest a potent greenhouse gas, methanotrophic bacteria pull double duty when it comes to cleaning up the environment. But before researchers can explore potential conservation applications, they first must better understand the bacteria's basic physiological processes. New research has identified two never-before-studied proteins, called MbnB and MbnC, as partially responsible for the bacteria's inner workings. […]

  • Study suggests method to boost growth of blood vessels and muscle
    on March 22, 2018 at 6:09 pm

    Researchers have reversed age-related endurance loss in mice by treating them with a compound that promotes new blood vessel growth. Their study found the compound, which reactivates longevity-linked sirutin proteins, promotes blood vessel and muscle growth, boosting endurance of elderly mice by up to 80 percent. […]

  • The circadian clock controls the cell cycle and tumor growth in plants
    on March 22, 2018 at 6:07 pm

    Biological rhythms are ubiquitous in nature, from the beating of the heart to the rhythms of flowering plants. A research team has shown that the two main cellular oscillators -- the circadian clock and the cell cycle -- are closely connected. The study demonstrates that the circadian clock controls the speed of the cell cycle, regulating the cell division and growth in synchronization with the day and night cycles. […]

  • The universal language of hormones
    on March 22, 2018 at 3:31 pm

    Bioinformatics specialists have studied a specific class of hormones which is relevant for plants, bacteria and indirectly for humans, too. Their results challenge previous scientific assumptions. […]

  • Gut bacteria determine speed of tumor growth in pancreatic cancer
    on March 22, 2018 at 2:32 pm

    The population of bacteria in the pancreas increases more than a thousand fold in patients with pancreatic cancer, and becomes dominated by species that prevent the immune system from attacking tumor cells. […]

  • Researchers observe the switching of Ras protein in detail
    on March 21, 2018 at 1:47 pm

    Ras proteins are molecular switches that decide if and when cells divide inside our bodies. An impairment of their function may result in the formation of a tumor. The process of switching the proteins on and off has now been observed in detail. […]

  • 'Wiggling and jiggling': Study explains how organisms evolve to live at different temperatures
    on March 21, 2018 at 1:08 pm

    New research explains how the 'wiggling and jiggling' of the atoms in enzymes -- the proteins that make biological reactions happen -- is 'choreographed' to make them work at a particular temperature. Enzyme catalysis is essential to life, and this research sheds light on how enzymes have evolved and adapted, enabling organisms to evolve to live at different temperatures. […]

  • Protein nutrition for cells and organisms: Can we use it to treat diseases?
    on March 21, 2018 at 1:07 pm

    A review article highlights opportunities and challenges in using amino acid transporters as drug targets. The article provides an overview of methods used to identify new inhibitors for amino acid transporters and outlines cell and organ function where these can be used to modulate, prevent or to treat diseases. […]

  • Malaria's most wanted: Identifying the deadliest strains to design a childhood vaccine
    on March 20, 2018 at 2:08 pm

    Researchers have identified a 'genetic fingerprint' associated with the most deadly strains of malaria parasites, making these unique DNA regions potential targets for vaccine development. […]

  • Sound new technique tunes into the shifting shapes of biology
    on March 20, 2018 at 12:43 pm

    Scientists have come up with a novel way of quantifying cell shapes -- with a lot of mathematics and a little musical inspiration. […]

  • Natural sniper kills hospital bacterium
    on March 20, 2018 at 12:41 pm

    Bacteria produce proteins to take out specific competitors. One of these proteins can kill the hospital bacterium Pseudomonas aeruginosa. Microbial geneticists have unraveled how this protein launches its attack and ensures that the bacteria die very quickly. In the long term, these proteins hold potential for new antibiotic cocktails. […]

  • Three genes essential for cells to tell time
    on March 20, 2018 at 1:57 am

    One family of genes allows cells to adapt to daily changes in environmental conditions by adjusting their internal 'body clock,' the circadian clock responsible for regular sleep-wake cycles. The new discovery reveals for the first time that circadian regulation may be directly connected to cellular stress. […]

  • 'New life form' answers question about evolution of cells
    on March 19, 2018 at 7:57 pm

    Bacteria and Archaea must have evolved from the putative Last Universal Common Ancestor (LUCA). One hypothesis is that this happened because the cell membrane in LUCA was an unstable mixture of lipids. Now, scientists have created such a life form with a mixed membrane and discovered it is in fact stable, refuting this hypothesis. […]

  • What happens to a dying cell's corpse? New findings illuminate an old problem
    on March 19, 2018 at 6:45 pm

    Scientists have discovered a curious way for cells to die. In studying it, they are learning about how remnants of diseased cells are normally chewed up and removed. […]

  • Tiny implants for cells are functional in vivo
    on March 19, 2018 at 4:01 pm

    For the first time, an interdisciplinary team has succeeded in integrating artificial organelles into the cells of living zebrafish embryos. This innovative approach using artificial organelles as cellular implants offers new potential in treating a range of diseases. […]

  • Deeper insight into viral infections
    on March 19, 2018 at 4:01 pm

    Researchers have developed a new analysis technique that sheds more light on viral infections. They used the new method to demonstrate that virus-infected cells produce far more infection-related proteins and peptides than previously thought. […]

  • Consuming low-calorie sweeteners may predispose overweight individuals to diabetes
    on March 18, 2018 at 6:48 pm

    Consumption of low-calorie sweeteners could promote metabolic syndrome and predispose people to prediabetes and diabetes, particularly in individuals with obesity, a new study on human fat-derived stem cells and fat samples suggests. […]

  • Signaling pathways to the nucleus
    on March 16, 2018 at 4:12 pm

    Researchers have discovered how the plant hormone auxin is transported within the cell and how this signaling pathway helps to control gene expression in the nucleus. Auxin regulates many processes in plants: from embryonic development, to the development of organs, all the way to responses to changes in the environment. […]

  • New understanding of parasite biology might help stop malaria transmission
    on March 15, 2018 at 6:12 pm

    Researchers made an important step toward deeper understanding of how malaria blood stage parasites turn the switch to become transmissible to other humans. This knowledge is fundamental for future research aiming to interrupt malaria transmission. […]

  • Democratizing single-cell analysis
    on March 15, 2018 at 6:12 pm

    Scientists have developed a new low-cost technique for profiling gene expression in hundreds of thousands of cells. […]

  • How royal jelly helps honeybee larvae defy gravity and become queens
    on March 15, 2018 at 6:07 pm

    Honeybee larvae develop into queen bees if they are fed large quantities of a food called royal jelly. But royal jelly does more than determine whether a larva becomes a queen: it also keeps her safely anchored to the roof of the queen cell in which she develops. Research explains how the pH of royal jelly helps make the substance viscous enough to keep the queen-to-be from falling. […]

  • Scientists map the portal to the cell's nucleus
    on March 15, 2018 at 5:07 pm

    The gateway to cellular headquarters has 552 components. A new map that shows how all these pieces fit together could help scientists study numerous diseases. […]

  • Molecular basis of major antibiotic resistance transfer mechanism unraveled
    on March 15, 2018 at 4:29 pm

    One of the biggest current threats to global health is the rise of multi-drug resistant bacteria, caused by the spreading of antibiotic resistance amongst them. In an attempt to help fight this threat, researchers have unraveled the molecular basis of a major antibiotic resistance transfer mechanism. They also developed molecules and a proof-of-principle for blocking this transfer. […]

  • Biologists unravel another mystery of what makes DNA go 'loopy'
    on March 15, 2018 at 4:29 pm

    New research shows that a process known as hemimethylation plays a role in looping DNA in a specific way. Researchers also demonstrated that hemimethylation is maintained deliberately -- not through random mistakes as previously thought -- and is passed down through human cell generations. […]

  • How cells protect themselves against mechanical stress
    on March 15, 2018 at 4:29 pm

    The Piezo1 and Piezo2 ion channels are known to open up response to the slightest mechanical stimulus. Researchers have now discovered that the channels are also sensitive to changes in membrane voltage. The voltage sensitivity appears to be an ancient property of these channels that protects cells from mechanical stress. […]

  • Viral hideout: After infection, herpes lurks in nerve cells
    on March 15, 2018 at 1:38 pm

    The ability of the 'cold sore' herpes simplex virus to establish quiet infections and reawaken periodically has long mystified scientists. A new study in mice reveals that a key host protein acts as a critical regulator of the virus's sleep-wake cycle. […]

  • How fungi grow: A movie from inside the cell
    on March 15, 2018 at 1:18 pm

    Fungi forming mold on food are hazardous. Fungi supplying antibiotics are beneficial. Fungi may be harmful pathogens. On the other hand, they are used for the production of food or medicine and in bioengineering. In either case, it is required to precisely understand their growth mechanism. Researchers have now taken a big step forward: Using high-performance light microscopy, they watched mold fungi as they grew in the cell. […]

  • Keeping plant-cell motors on track
    on March 15, 2018 at 1:13 pm

    In a growing plant cell, motor proteins called kinesins work as transporters that haul materials built in one part of the cell to the place where they are needed. Now, biologists have discovered the molecular brakeman that holds kinesins in check until their cargo is needed. […]