Tag: "several" at biology news
Carnegie Mellon scientists find key HIV protein makes cell membranes bend more easily
...e structures called liposomes. FP-23 likely plays several
roles in viral fusion, according to the researchers. One role already suspected is that FP-23 attaches to its T cell victim to facilitate a change in the shape of gp41, which in turn drives uptake of HIV RNA and proteins by the T cell. But the Carneg...
One species, many genomes
...xtent of the project. The data were evaluated with several
specially designed statistical methods, including a variant of machine learning. The result of this painstaking analysis: on average, every 180th DNA building block is variable. And about four percent of the reference genome either looks very diffe...
Cellular message movement captured on video
...ter of locomotion and gene-expression signals from several
classes of growth-factor receptors to the nucleus. Cancer researchers are eager to understand paxillin’s many interactions because their malfunctions have been linked to a variety of cancers, tumor metastasis, and other disease processes. Tumor-ca...
Blood test may help signal tumor's remission, return in throat cancer patients
...hat throat cancer patients who showed a decline in several
cancer-related proteins following chemotherapy and radiation treatment were more likely to remain in remission, while those who experienced a large rise over time in those proteins frequently exhibited a return of throat cancer. The findings could he...
Discovery in orange cauliflower may lead to more nutritious crops
...esearchers have created "golden rice" by inserting several
genes that increases the synthesis of beta-carotene. But this technique has proved less effective in many plants. Li's research, which increases a plant's ability to store beta-carotene, may offer an alternate and complementary technique for making s...
A new plant-bacterial symbiotic mechanism promising for crop applications
...biosis. This common model requires the presence of several
nod genes which allow synthesis of the Nod factor, a compound elaborated by the bacterium which enables the plant to recognize it, by molecular recognition, thereby allowing the microorganism to penetrate inside the plant by the root hairs. The fi...
New bacterium discovered -- related to cause of trench fever
...ng anemia, an enlarged spleen and a high fever for several
weeks, as do victims of malaria and typhoid. The A...hese earlier investigations taught the researchers several
important lessons: new diseases and new bacteria infecting humans are still being discovered, and it...
Study shows big power of small RNAs, not just proteins, in halting cancer
...growth. “At CSHL, we are moving simultaneously on several
fronts to understand the p53 pathway because damage to this pathway is something that almost all cancers have in common,” said CSHL Cancer Center Deputy Director and HHMI Scott Lowe. “Collaboration among different CSHL research laboratories has no...
Newly found sensing system enables certain bacteria to resist human immune defenses
...roups of organisms, including amphibians, insects, several
invertebrates and mammals, including humans. “G...P, human beta defensin 3. S. epidermidis is one of several
hard-to-treat infectious agents that can be transmitted to patients in hospitals via contaminated me...
Brightening prospects of using fluorescent nanotubes in medical applications
.... “Quantum efficiency is critical, but there are several
other factors that make nanotubes particularly wel...begin fading within a few hours. Quantum dots last several
days before degrading. Hertel’s team is currently working on the next step necessary for many bio...
Stroke study sheds light on left-right brain divide
...en preparing a meal we often have to keep track of several
tasks at once and make sure we perform each one correctly and at the right time.’...
Researchers examine carbon capture and storage to combat global warming
...-a partnership involving the Department of Energy, several
national labs, government groups and industry partners-is still in its early stages, the researchers said. Of all the projects, only one is turning a profit without recovering oil. Sleipner, an industrial-scale project run by Norwegian oil company...
ASU research shows connection between testosterone, dietary antioxidants and bird coloration
...ally from Australia. Carotenoids are known to play several
key roles in birds and fish, including contributing to their bright colors, which acts as a signal to attract potential mates. They also act as an antioxidant in the body, which improves immune system function. “Researchers in animal behavior oft...
Massive herds of animals found to still exist in Southern Sudan
...ntified a key zone of semi-arid habitat supporting several
species, which will be proposed as a new protected... Africa. The plan would include the integration of several
thousand ex-combatants from the Sudan People’s Liberation Army into wildlife services, help establis...
Study shows lizard moms dress their children for success
...y the hormones and their effects in the field over several
generations of lizards. ...
CT scan reveals ancient long-necked gliding reptile
...and swept back wings. Gliding behavior evolved several
times in reptiles and is present in the Indonesian reptile Draco. ...
Penn researchers link cell's protein recycling systems
...e ability of HDAC6 to prevent neurodegeneration in several
mouse models, including motor neuron disease, Parkinson’s disease, and Huntington’s disease. They are also attempting to identify pharmacologic approaches to augmenting HDAC6 activity....
Herpes virus hijacks DNA repair process
...sses or transmit signals. Genetic comparisons with several
human herpes viruses revealed kinases similar to orf36 in the human viruses. Scientists then took a similar kinase from human Epstein-Barr virus and showed that introducing it into cells also activated the DNA damage response. When the research te...
Exploring the dark matter of the genome
...are the hallmark of heterochromatin, and there are several
distinct kinds. Simple, short repeats are called satellite DNAs, which tend to become more abundant near the centromeres, adding up to hundreds of thousands or even millions of bases in length. In these "seas" of satellite DNA there are "islands" of ...
In nature, proteins sweep up nanoparticles
...nside a flooded mine in Wisconsin, scientists from several
institutions including the U.S. Department of Ener...d, the metal nanoparticles form blobs that measure several
microns in diameter (one micron is one-millionth of a meter). And these larger blobs anchor the nano...
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