Cell Biology

Cell Biology News -- ScienceDaily Cell biology news. Read the latest research news on cell biology and see related videos.

  • Researchers build artificial cellular compartments as molecular workshops
    on May 22, 2018 at 4:33 pm

    How to install new capabilities in cells without interfering with their metabolic processes? Scientists have altered mammalian cells in such a way that they formed artificial compartments in which sequestered reactions could take place, allowing the detection of cells deep in the tissue and also their manipulation with magnetic fields. […]

  • Mice brain structure linked with sex-based differences in anxiety behavior
    on May 22, 2018 at 3:46 pm

    Using male individuals has long been a tradition in scientific mice studies. But new research enforces the importance of using a balanced population of male and female mice. Scientists studying the locus coeruleus brain structure in mice unexpectedly found substantial differences in the molecular structures of this part of the brain between male and female mice. […]

  • Faster genome evolution methods to transform yeast
    on May 22, 2018 at 3:44 pm

    Scientists have created a new way of speeding up the genome evolution of baker's yeast Saccharomyces cerevisiae, the same yeast we use for bread and beer production. […]

  • Compound in citrus oil could reduce dry mouth in head, neck cancer patients
    on May 21, 2018 at 7:42 pm

    A compound found in citrus oils could help alleviate dry mouth caused by radiation therapy in head and neck cancer patients, according to a new study. […]

  • Computer redesigns enzyme
    on May 21, 2018 at 5:18 pm

    Biotechnologists used a computational method to redesign aspartase and convert it to a catalyst for asymmetric hydroamination reactions. Their colleagues in China scaled up the production of this enzyme and managed to produce kilograms of very pure building blocks for pharmaceuticals and other bioactive compounds. […]

  • Observing cellular activity, one molecule at a time
    on May 21, 2018 at 5:17 pm

    Using a new mode of atomic force microscopy, researchers have found a way to see and measure protein assembly in real time and with unprecedented detail. […]

  • Snap-lock mechanism in bacterial riboswitch
    on May 21, 2018 at 5:17 pm

    In a discovery that points to potential new antibiotic medicines, scientists have deciphered the workings of a common but little-understood bacterial switch that cuts off protein production. […]

  • Target for chikungunya treatment
    on May 21, 2018 at 5:17 pm

    Scientists have identified a molecule found on human cells and some animal cells that could be a target for drugs against chikungunya virus infection and related diseases, according to new research. […]

  • Profiling the genome hundreds of variations at a time
    on May 21, 2018 at 5:17 pm

    Using baker's yeast, a team at Harvard's Wyss Institute developed a CRISPR-Cas9-based high-throughput approach that allows researchers to precisely alter hundreds of different genes or features of a single gene at once in individual yeast cells with 80 to 100% efficiency, select cells from the population that show specific behaviors, and identify the gene alterations that either trigger or prevent them. […]

  • Annotation tool provides step toward understanding links between disease, mutant RNA
    on May 20, 2018 at 1:09 pm

    Researchers have developed a computer program that represents a key step toward better understanding the connections between mutant genetic material and disease. […]

  • Researchers discover how body temperature wrecks potential dengue, Zika vaccine
    on May 18, 2018 at 6:10 pm

    A major route toward creating effective vaccines against dengue virus and Zika involves the E protein that covers the surface of each viral particle. But creating such a vaccine has proven difficult for a number of reasons. Now researchers have delineated the details of one major barrier to a promising vaccine. It's something we all have -- a natural body temperature of about 98.6 degrees. […]

  • New insights into malaria parasite
    on May 18, 2018 at 4:19 pm

    Scientists have found that various stages of the development of human malaria parasites, including stages involved in malaria transmission, are linked to epigenetic features and how chromatin -- the complex of DNA and proteins within the nucleus -- is organized and structured in these parasites. […]

  • E. coli tailored to convert plants into renewable chemicals
    on May 18, 2018 at 2:59 pm

    Jet fuel, pantyhose and plastic soda bottles: all three could be made from bioengineered bacteria. […]

  • Researchers mimic comet moth's silk fibers to make 'air-conditioned' fabric
    on May 17, 2018 at 11:47 pm

    In exploring the optical properties of the Madagascar comet moth's cocoon fibers, a team discovers the fibers' exceptional capabilities to reflect sunlight and to transmit optical signals and images, and develops methods to spin artificial fibers mimicking the natural fibers' nanostructures and optical properties. […]

  • What bacteria can teach us about combating atrazine contamination
    on May 17, 2018 at 8:33 pm

    Researchers are interested in harnessing the bacterial ability to degrade atrazine in order to remediate atrazine-polluted environments. They now describe previously unknown proteins involved in atrazine degradation. […]

  • More than a living syringe: Mosquito saliva alone triggers unexpected immune response
    on May 17, 2018 at 6:36 pm

    Mosquito saliva alone can trigger an unexpected variety of immune responses in an animal model of the human immune system. […]

  • How Nagana is carried by tsetse flies
    on May 17, 2018 at 6:36 pm

    Researchers have revealed new details on how the animal disease Nagana is spread by tsetse flies in Africa. […]

  • Chance discovery links inflammatory bowel disease with common bacterial gut toxin
    on May 17, 2018 at 6:36 pm

    New research has uncovered a surprise link between a common bacterial toxin found in the gut and inflammatory bowel disease (IBD). […]

  • Battling bubbles: How plants protect themselves from killer fungus
    on May 17, 2018 at 6:25 pm

    In the battle between plants and pathogens, molecules called small RNAs are coveted weapons used by both invaders and defenders. Researchers report how plants package and deliver the sRNAs they use to fight back against plant pathogens. The study focused on Botrytis cinerea, a fungus that causes a grey mold disease in strawberries, tomatoes, and almost all fruits, vegetables, and many flowers. […]

  • Blood type affects severity of diarrhea caused by E. coli
    on May 17, 2018 at 4:32 pm

    A new study shows that a kind of E. coli most associated with 'travelers' diarrhea' and children in underdeveloped areas of the world causes more severe disease in people with blood type A. The bacteria release a protein that latches onto intestinal cells in people with blood type A, but not blood type O or B, according to a new study. […]

  • Surprise cell death discovery provides birth defect clues
    on May 17, 2018 at 3:38 pm

    Researchers have made a surprise discovery that could rewrite our understanding of the role programmed cell death plays in embryonic development and congenital birth defects. The team showed that, while programmed cell death -- or apoptosis -- is essential for healthy development overall, many organs and tissues do not require apoptosis to develop normally. The study also suggested that abnormalities in cell death processes are likely to contribute to some common birth defects in humans, such as spina bifida, heart vessel defects and cleft palate. […]

  • How immune cells kill bacteria with acid
    on May 17, 2018 at 3:38 pm

    The first line of immune defense against invading pathogens like bacteria are macrophages, immune cells that engulf every foreign object that crosses their way and kill their prey with acid. However, it is not yet entirely understood how the acidification process is established. In their quest to systematically study proteins that transport chemicals across cellular membranes, researchers characterized the critical role for transporter SLC4A7, providing valuable new insights for many pathologic conditions. […]

  • Vitamin B12 breakthrough for more complete Vegetarian and Vegan diets
    on May 17, 2018 at 3:33 pm

    Scientists have made a significant discovery about how the vitamin content of some plants can be improved to make vegetarian and vegan diets more complete. Vitamin B12 (cobalamin) is an essential dietary component but vegetarians are more prone to B12 deficiency as plants neither make nor require this nutrient. But now a team, led by Professor Martin Warren, has proved that common garden cress can take up cobalamin. […]

  • Levers and zippers in the cell's 'customs'
    on May 17, 2018 at 2:23 pm

    The passage of ions through the cell membrane is controlled by ion channels, which are protein complexes that regulate vital processes, such as the heartbeat, as well as being the target towards which many drugs are directed. Now a study presents a novel model to explain how the pores of these channels open and close. […]

  • Missing ingredient to spark the fireworks of life
    on May 17, 2018 at 2:23 pm

    Using a novel imaging technique, researchers demonstrate that XMAP215, a protein known to help microtubules grow faster and longer, is necessary to nucleating microtubules. For decades, researchers have been struggling to understand why the gamma-tubulin ring complex (g-TuRC) nucleates only a few microtubules in the test tube, looking for some other factor that could activate or enhance g-TuRC. That search may now be over. […]

  • Photosynthesis involves a protein 'piston'
    on May 17, 2018 at 2:23 pm

    The photosystem I (PSI)-ferrodoxin (Fd) complex is important in electron transfer during photosynthesis, through which plants convert sunlight, carbon dioxide, and water into complex chemicals and oxygen. Scientists have recently crystallized the PSI-Fd complex for the first time. They found that the PSI-Fd complex contained Fd with weak and strong binding states and that Fd binding caused the PSI subunits to reorganize into a structure that facilitated rapid electron transfer. […]

  • A new system is designed that improves the quality of frozen horse sperm
    on May 17, 2018 at 2:22 pm

    The method reduces ice crystals that form during cryopreservation and affect spermatozoon structure. […]

  • Keep saying yes to fish twice a week for heart health
    on May 17, 2018 at 12:18 pm

    A new scientific advisory reaffirms the recommendation to eat two servings of fish per week. […]

  • Mechanical force controls the speed of protein synthesis
    on May 16, 2018 at 8:25 pm

    As cells create proteins, the proteins modulate synthesis speed by exerting a mechanical force on the molecular machine that makes them, according to a team of scientists who used a combination of computational and experimental techniques to understand this force. […]

  • Why chikungunya, other arthritis-causing viruses target joints
    on May 16, 2018 at 5:12 pm

    Scientists have understood little about how chikungunya and related viruses cause arthritis. Now, researchers at have identified the molecular handle that chikungunya grabs to get inside cells. The findings could lead to ways to prevent or treat disease caused by chikungunya and related viruses. […]