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Tag: "recognize" at biology news

Epstein-Barr virus might kick-start multiple sclerosis

... T cells were recognizing. Generally, immune cells recognize one small, specific part on a protein, called an i...oadened response of the T cells could lead them to recognize and attack cells they aren't supposed to, like brain cells," said Münz. This process, called molecul...

MRSA vaccine shows promise in mouse study

... "we need to stimulate an immune response that can recognize the specific cell-surface proteins responsible for virulence and can recognize them from multiple strains." The researchers turned to a newer technique, known as "reverse vaccin...

Amgen introduces comprehensive financial assistance programs for cancer patients

...nancial support for Amgen's cancer medicines. "We recognize that treating cancer is expensive and our industry needs to find new ways to ease the financial burden on cancer patients, their families and society," said Kevin Sharer, chairman and chief executive officer at Amgen. "Our goal is to create the most...

Nice guys do finish first in lizards' evolutionary race

...first genetic evidence of a trait that the animals recognize and use ?even if that trait seems on the surface t...tionary term of a trait so obvious that others can recognize The greenbeard in this case, McAdam said, is more than just a blue throat. The mechanism of self ide...

New study reveals structure of E. coli multidrug transporter protein

...e transporters are distinctive in their ability to recognize and expel a highly diverse range of amphipathic compounds. Amphipathic molecules contain both hydrophobic and hydrophilic groups-molecules that repel or are attracted to water, respectively. The x-ray structure of the EmrD transporter-determined w...

Researchers find protein that silences genes

...tributes to gene silencing. Using antibodies that recognize specific histone modifications that occur on the genes when they switch from off to on, the group was able to confirm that the deacetylation specificities they observed for HDA6 in the test tube fit with the changes in acetylation that occur on ribos...

Potato blight pathogenicity explained by genome plasticity

... only a single copy. Certain potato plants do not recognize strains of the pathogen with only the single gene copy, making them susceptible to infection. This is the first report of gene amplification in a non-bacterial organism that is associated with pathogenicity, and it provides insight into how plant pa...

Bacteria have their own immune system protecting against outside DNA

...a have a complicated immune system that helps them recognize and isolate foreign DNA trying to invade their cel... coming from outside sources. Just as immune cells recognize and attack foreign invaders in the human body to protect against harmful infections, single-cell org...

Smokers invite to test vaccine against nicotine addiction

...lates the immune system to produce antibodies that recognize the small nicotine molecule. Bound to these antibodies, nicotine molecules no longer can cross the blood-brain barrier and enter the brain. "With little or no nicotine reaching the brain, smoking is less rewarding. That gives the smoker a chance ...

Immune system police learn early and sometimes badly

...It is widely believed that regulatory T cells only recognize endogenous body tissue so they can stop T cells th...nd regulatory T cells are very diverse and able to recognize endogenous tissue and invaders, Dr. Ignatowicz says. Unfortunately, the cells also may not learn t...

In drug design, a loose fit may be best bet

... gland. As with many of the body's hormones, cells recognize TRH using a receptor belonging to a mega-family of proteins known as G-protein-coupled receptors (GPCRs), which play a lead role in cell-to-cell communication. When a hormone binds to its designated GPCR on the outside of a cell, a specific G-protein...

Researchers unveil strategy for creating actively-programmed anti-cancer molecules

...eins produced by immune cells that are designed to recognize foreign pathogens harmful to the body; monoclonal antibodies are produced in the laboratory from a single cloned B-cell, the immune system cell that makes antibodies. "By bringing together chemistry and biology, our approach provides a way to brea...

Plant protection from cold decoded

...ns on continuing his research on how HOS1 and ICE1 recognize each other and work together to help plants deal with cold weather conditions. This line of inquiry should better explain how plant cells initially respond to cold and other adverse conditions. ...

Surprise finding for stretched DNA

...lications for how DNA-binding proteins are able to recognize their target sites along the helix. These proteins are known to bend, wrap, loop and twist DNA. Now it has been shown that they can achieve their goals by simultaneously stretching and overwinding a DNA molecule, or by compressing and underwinding i...

Salk and Stanford teams join forces to reveal two paths of neurodegeneration

...s, and neither do immature nerve cells immediately recognize the "right" target cell. Abundant foliage, either vegetal or neuronal, must first sprout and then be sculpted into an ordered structure. Neurons extend fibers called axons to target cells in an exuberant manner--some branch to the "wrong" cells whil...

Vampire bats recognise their prey's breathing

... feed exclusively on blood, including human blood, recognize their prey by the sound of its breathing. In a study published today in the open access journal BMC Biology, vampire bats of the species Desmodus rotondus could recognise recorded human breathing sounds much better than human participants could. Vamp...

Mussels evolve quickly to defend against invasive crabs

...ile previous research had established that mussels recognize Carcinus, it had not be determined if they recognize Hemigrapsus. And, crucial to the design of Freeman's study, Hemigrapsus is not present north of mid-...

Study reveals how cells destroy faulty proteins in cystic fibrosis

...rent ubiquitin ligases, proteins that specifically recognize misshaped regions of CFTR and tag them with a degr...y. "We've identified the trash collectors that recognize misfolded proteins, decide if they might be toxic to the cell and mark them with ubiquitin. The ubiq...

T cells activated to fight HIV basis for dendritic cell therapeutic vaccine

...alled interleuken-12 (IL-12). When dendritic cells recognize and capture viral antigens, they work together with CD4 T cells to release IL-12, which in turn triggers stimulation of killer CD8 cells that are specific to the virus. Reporting at AIDS 2006, Xiao-Li Huang, M.D., research assistant professor of in...

Can you hear me now? Scientists find previously unknown receptors on adult stem cells

...lls that fight infection -- possess receptors that recognize bacteria and viruses. When activated, these receptors kick the stem cells and immature blood cells into action, enlisting them to help fight whatever pathogen is attacking the body. The findings, which appear in the June issue of the journal Immunit...

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