Tag: "bit" at biology news

Key step in gene activation discovered

...had been able to figure out the usefulness of that bit of molecular remodeling. However, it was known that the attachment of the Transcription Activator to the beginning of a gene is the signal that attracts a HAT complex to join the action, and Workman's lab recently had shown that the HATs add Acetate...

How to build strong bones: Get milk, lose the booze

...itions, actually stimulate bone growth is a little bit unusual." He called for longer-term studies. Both Turner and H. Wayne Sampson, professor of human anatomy and neurobiology in the College of Medicine at the Texas A&M University System Health Science Center, and lead author of the second study p...

Montana drought sends paleontologists to field early for largest project in state's history

...Hopefully, things will stay cool and we will get a bit of rain, keeping things from drying up too much. It's the dry lightning that's going to possibly cause a problem. Our top priority always is the safety of the crew." Don Simonsen of the National Weather Service at Glasgow said this year in the Glasg...

Toxic compound opens potentially important cell gates

...ientific cooperation," Bessman concludes. "It's a bit like the fusion of the proteins we found; the whole was greater than the sum of its parts."...

Virus found to carry antibiotic against E. coli

...s for new types of antibiotics."Ideally, the small bit of protein responsible could be mimicked by a pharmaceutical company, " added Struck, "and a drug could be made to be general against many bacteria, or specific against a certain pathogen, and even better, it could easily be changed to overcome resi...

Identification of genes may tell how plants recognize pollen

...e allows plantscientists to work from just a small bit of gene sequence to obtain the entiresequence of a gene," said Preuss. "Also, we already have many knownmutations of this plant, so when we make new mutants, we can compare them withthese previously characterized mutants. Finally, since much work has...

Genome superheroes unmask

Last June, in a legendary bit of scientific heroism, a graduate student from the University of California stitched together a massive collection of DNA sequence pieces to create the first public draft of the human genome sequence. The student, James Kent, had worked around the c...

Researchers reveal new clues about spread of colon cancer

... six cases studied, PRL-3 expression was quite a bit higher in the metastases than in the primary tumor," said Vogelstein. The scientists also discovered that the higher levels of PRL-3 expression they measured were associated in a few cases with a process known as gene amplification -- in which ov...

Researchers uncover a piece of nature's secret nitrogen formula

...rature and at everyday pressures while being every bit as efficient as the factories. Now a team of researchers thinks it's found a key piece of the puzzle that lets these microorganisms best the world's biggest chemical production business. "Nature figured out how to fix nitrogen a billion years before ...

Complex carbohydrate found to regulate plant growth

...ts of dozens of scientists around the world, and a bit of luck, that quest has come to an end. In an arti...all in place. "You can think of the cell wall as a bit like reinforced concrete," O'Neill said. "Tiny cellulose fibers are the steel rods and the matrix is...

Children's book explores why animals stay home to help

...ters is its safest bet." Writing for children is a bit "outside the box" for most active scientists, but Sherman and Jarrow find making the excitement of behavioral ecology accessible to the next generation to be both challenging and rewarding. Together they have written about a dozen articles for child...

Antarctic mud reveals ancient evidence of global climate change

...temperatures were higher. "We think it was quite a bit warmer then," he observes, noting that geochemical analysis of the sediment also revealed higher levels of nitrogen during the mid-Holocene. "Warmer temperatures may have produced freshwater streams that fed nitrogen and other nutrients into coastal ...

Preserving pine's genetic heritage

...ing, rocky ridge to an altitude of 500m. The worst bit was carrying the pine cones back to camp!...

Experts offer the skinny on search for healthy fat

...ducing the amounts of omega-6s in the diet takes a bit more effort. Research by Watkins and Loren Cordain, professor of health and exercise science at Colorado State University, and author of "The Paleo Diet" (John Wiley & Sons, 2002), has shown that corn-fed cattle produce meat that is high in omega-6 f...

Homing in on a receptor for the fifth taste

.... "When Nick Ryba and I began this collaboration a bit over four years ago, our ultimate goal was to understand how the brain knows what you just tasted," he said. "We wanted to discover how taste receptor cells are activated and how their signals travel to the brain to produce specific taste perceptions...

Medicines, caffeine and antibacterial soap among contaminants found in American streams

...he compounds, but the prevalence of mixtures was a bit surprising, says Kolpin. Since this was the first attempt to survey most of these compounds the researchers tried to pick streams most likely to show some contamination. Most are downstream from wastewater treatment plants or intense livestock activ...

Putting microRNAs in their place

...ction. The presence of Gemin3 and 4, though, was a bit more surprising. The SMN complex is named for one of its main constituents, the Survival of Motor Neurons protein, which, when mutated results in spinal muscular atrophy, the second most common childhood neuromuscular disorder. This finding of shared...

Fly brains provide new insights into the growth and development of human nerve cells

...tudy. Rac1 contributed significantly, Mtl a little bit and Rac2 even less. Previous studies have focused on individual Rac genes, but now it appears that all three genes function synergistically. According to Ng, these findings suggest that the brain is really a community of neurons, where defective cel...

Experiments reveal ancient blood flow map

... many positions along the migration pathway. Its a bit like attracting a duck by leaving a trail of breadcrumbs along the pathway. When the researchers added VEGF to areas in the fly that normally dont make the protein, the result was a dramatic rerouting of blood cells to totally new positions, accordin...

Extensive research survey confirms life on Earth now being affected by global warming

...community, tipping the ecological balance a little bit in favor of one species over another, which can result in a whole new assemblage of species," Post says. When there is a major redistribution of groups of species as a result of environmental change, some species do well and some don't. "If the fre...

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(Date:4/22/2014)... scientists have found a way to block abnormal cholesterol ... atherosclerosis, the main cause of heart attacks and strokes ... condition develops when fat builds inside blood vessels over ... reducing their ability to feed oxygen-rich blood to the ... of experiments, described April 7 in the journal ...
(Date:4/22/2014)... (SALT LAKE CITY)A computational tool developed at the University ... with unknown gene mutations in three separate cases, U ... new study in The American Journal of Human ... Re-ranking tool), identifies undiagnosed illnesses and unknown gene mutations ... proteins that code for genes are made, in individual ...
(Date:4/22/2014)... is available in German . ... of the University of Vienna and the Medical University of ... shown how double stranded RNA, such as viral genetic information, ... the immune response against viral infection, the protein ADAR1 moves ... modifies viral RNA to inhibit reproduction of the virus. But ...
(Date:4/22/2014)... influenced by low exposure to testosterone in the womb, ... men,s testosterone levels may be determined before they are ... the hormone than others is important because testosterone is ... hormone have been linked to obesity, diabetes and heart ... for producing testosterone in adults known as Leydig ...
(Date:4/22/2014)... waited in line and most of us have gotten ... like. , For Will Mather, assistant professor of ... Integrated Science Curriculum, studying lines, or queues, has been ... bottlenecks that limit the recycling of proteins. , The ... professor, has received attention from the National Science Foundation ...
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