Tag: "distant" at biology news

Research Team Finds Gene Causing Two Types Of Muscular Dystrophy

...entical mutations -- perhapsbecause of an unknown, distant relationship; but affected individuals in onefamily developed Miyoshi myopathy, while those in the other family had aslightly different form in which weakness began in the front of the lower legs. The same issue of Nature Genetics also includes a rep...

Tightly Controlled Protein Destruction Drives The Cell Cycle

...entical form in manyother species, even some quite distant from humans on the phylogenic tree. Yeastubiquitin, for example, differs from the human protein by only three of itsamino-acid building blocks. What, then, makes ubiquitin so vital that it hasbeen so strongly conserved during evolution? Research from...

Birds Of A Feather: The Physics Of Flocks

...he slightmisalignments between neighbors mean that distant magnets will have a goodchance of being very misaligned with each other, greatly dimming the prospectsfor the material to be an effective magnet. In fact, a rock-solid theory inphysics, known as the Mermin-Wagner theorem, says that these interaction...

University-Industry-Government Institute Will Study Pollution Control Chemistry In A Unique Virtual Collaboration

...sharing with annotations and remote control, allow distant users of thecollaboratory to interact as closely as if they were down the hall. The newinstitute will be the first outside user of Pacific Northwest's collaboratory. Catalysis is one of the most important phenomena in nature and in industry. Acatalys...

Vaccine Technology Takes Center Stage In Rochester

...nasal spray, that could make thedreaded flu shot a distant memory. University physician Michael Pichichero has led an effort totest in adults a version of the pertussis (whooping cough)vaccine commonly given to children. Adults in nursing homesaround Rochester currently are taking part in the study. ...

Bat Sonar Sharper Than Thought; Much Better Than Man-Made Gear

... sonar and the sonar of trained dolphins to detect distant orobscure objects, particularly mines. "The idea is to use the results to build asonar system that would find these mines without the need for dolphins ordivers," Simmons said. Dolphins and bats have similar high-quality sonar, but ...

Long Lava Flows May Have Taken Years, Causing Global Cooling And Extinctions

...anic eruptions bycarrying large amounts of lava to distant populated areas, as they have in thepast....

The Fire Down Below: Extreme Heat-Loving Organisms May Be Keys To Molecular Evolution, Origin Of Life, New Book Argues

... "Today we know that such extrapolations into the distant past meritconsiderable caution," they wrote. "We are far from understanding the origin andcharacteristics of the first living beings, which may have lacked even the mostfamiliar features found in extant cells . . ." Dr. Patrick Forterre of th...

When One Gene Has Two Roles, Its Second Function May Be Missed

...said. "As far as I know, these areclearly the most distant regulatory elements that have been identified in anystructural gene. It's a further demonstration of why we need to map and sequencethe entire genome if we hope to understand how these elements work." Derangements of GATA-2 expression could underlie ...

New Findings On Receptor Regulation May Lead To Better Drugs For Diabetes

... receptor's ability to bind thediabetes drug. This distant site, Lazar says, provides an additional target fo...g region, theaddition of a phosphate group to that distant site -- called phosphorylation --reduces, by tenfold, the TZD-binding region's ability to grab a dru...

International Genome Team Deciphers Genetic Instructions For A Complete Animal

...terium E.coli. Although it occupies a relatively distant branch on the evolutionary tree, C.elegans nevertheless shares many similarities with humans, which makes it animportant organism in which to carry out studies that parallel human biology. Unlike the much smaller microbes sequenced so far, C. elegans...

Science Announces Top Ten Research Advances Of 1998

...nto the destiny of theuniverse when they looked at distant stars and found that they were rushingapart at an accelerating rate. Scientists discovered decades ago that theuniverse has been expanding since the Big Bang. But whether the gravitationalpull between galaxies could slow-and ultimately reverse-that e...

UF Scientist Seeks Super Sea Oats

...t would be advisable to transplantsea oats between distant geographic locations, such as using Atlantic Coastsea oats to replenish Gulf Coast dunes damaged by hurricanes," Kane said. "There was some concern that there might be genetic mismatches among thepopulations. So we needed, first, to determine whether...

An Expedition Of Genetic Proportions Leads Duke Researcher To A New Culprit In Lung Cancer Metastasis

...using RRM1 to adjust treatment decisions is in the distant future, Beplersaid, a closer goal may prove to be even more important. The gene, he said,could "make a great target for chemotherapy agents." As it turns out, RRM1 is known to be vital to the life of a cell. Every normalcell (except eggs and sperm) ...

Scientists Discover Key Cog In Receptor That Governs Ripening

...er plants, the tomato, forexample, which is only a distant relative of Arabidopsis. What that allsuggests, Bleecker said, is an intriguing economy of nature where genes areinvented just a few times early on, but are modified many times over the courseof evolution to fit the needs of different host organisms....

Viral Harpoon Structure Suggests Measles, HIV And Ebola Viruses Related

... of the paramyxovirus family, and even possiblyits distant viral cousins." At the least, he added, these findings willspur further studies involving other medically important viruses. Specifically, determining the three-dimensional structure of the fusionprotein sheds new light on the key event in paramyxov...

Researchers Identify Mechanism That May Regulate Protein Involved In Sex Differentiation, Stress, Hunger

...on site, orAF-1 activation domain, is located at a distant location on the molecule fromthe ligand-binding site. On the SF-1 receptor, in contrast, the domain being phosphorylated is directlyadjacent to the ligand-binding domain, from which the co-activators function.And this, said Ingraham, indicates that e...

Discovery: Chromosomes Found To End In Big Loops

... telomere, was looped back aroundand attached to a distant internal site on the DNA and held there by the addedprotein," Griffith said. "The loop thus formed disguised the DNA end, keeping itcloaked or hidden from the sensors that trigger the cell suicide response." Researchers then clipped DNA away ...

The Sagan criteria for life revisited

...st week, the detection of life on that strange and distant world was not among the scientific objectives. After all, Callisto's heavily cratered surface is a frigid -220o F and is scarcely protected from the ravages of space by a extraordinarily thin CO2 atmosphere. Indeed most astrobiologists concur that Ca...

Researchers Propose A Revolutionary New Theory About The Way Cells Communicate

...f the A/P signaling centerto directly contact more distant cells," said Ramirez-Webber. Now, to determine if cytonemes actually function as the conduits for thechemical signals, the researchers are developing systems in which two cellscommunicate with each other - one sending signals, one receiving - andrest...

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