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Tag: "stable" at biology news

A catalogue of proteins

...lution. Their localisation has apparently remained stable over almost a billion years, as simple organisms evolved all the way to mammals. These results are a milestone in cell biology. Matthias Mann says, "for the first time, we are able to determine where exactly in the cell large numbers of proteins bel...

Tiny shock absorbers help bacteria stick around inside the body

...rce at which the sticky protein tip forms the most stable bond with the surface. Thus, the mechanical and adhesive features of the system evolved together to help the bacteria persist in tough environments inside a host animal or person. "Research on these fimbriae uncovers something that's essentially a ...

New tiger report release: Tiger habitat down from just a decade ago

...abitat have resulted in some populations remaining stable and even increasing. But it concludes that long-term success is only achieved where there is a broad landscape-level conservation vision with buy-in from stakeholders. "This report documents a low-water mark for tigers, and charts a way forward to ...

Researchers identify human DNA on the fast track

...clues that they do have. Other DNA regions produce stable RNA structures that have a variety of functions such as gene regulation or controlling the action of proteins. Furthermore, the same cells that express the HAR1 genes also produce a protein called reelin, which helps establish the architecture of the...

Tiny airborne particles are a major cause of climate change

...y ?the condition needed to form clouds and rain. A stable atmosphere means fewer clouds; fewer clouds mean less reflection of sunlight; less reflection of sunlight and absorption of radiation lead to warming. Policy makers have argued that, in the bottom line, the warming effect of the greenhouse gases an...

Pollution threatens coral health by preventing lesions from healing, UCF study shows

...n in Fort Pierce. Risk and LaPointe used ratios of stable isotopes of nitrogen as tracers of sewage levels. Higher values equate to larger amounts of sewage in an area. Risk and LaPointe found higher levels of the tracers than in any other area of Florida that they have studied, which Risk described as a "r...

Schepens scientists are first to discover angiogenesis switch inside blood vessel cells

...rowth, these drugs have little impact on existing, stable vessels," he says. "Our discovery may help design drugs that could dismantle existing vessels by targeting this switch inside the vessel cells." Angiogenesis is an important natural process that can be both good and bad for the body. It restores bl...

Protein-coated dental implants could improve bone regeneration

...t any regeneration requires two characteristics: a stable wound and space for the regenerated tissue to grow during the initial stages of healing. "If these components are in place, regeneration of the tissues around the tooth may occur within a week or two," he says. "After that, it's a matter of the wo...

Gold nanoparticles could improve antisense cancer drugs

... an "antisense nanoparticle") the DNA becomes more stable and can bind to the target messenger RNA (mRNA) more effectively than DNA that is not attached to a nanoparticle surface (as in commercial agents). When compared to antisense DNA complexed with commercial agents such as Lipofectamine and Cytofectin,...

A protein complex that untangles DNA

...arning about the normal mechanisms that maintain a stable genome we can gain a better position to understand what goes wrong in cancer", says Camilla Sjögren, who leads the research group. Central to both chromosome repair and distribution during cell division are three related protein complexes. "Quite ...

New flood-tolerant rice offers relief for world's poorest farmers

... well under way. In addition to providing a more stable supply of rice in developingcountries, the researchers are hoping that the new gene will beuseful in suppressing weeds and reducing herbicide applications forconventional and organic rice farmers in developed countries like theUnited States. If water...

Microbes transform 'safest' PBDEs into more harmful compounds

...found in every-day settings can degrade relatively stable forms of PBDEs, making them far less stable and potentially more toxic," says Lisa Alvarez-Cohen, Ph.D., the study’s corresponding author. "It i...

Global warming may have damaged coral reefs forever

...ed biodiversity results in a more fragile and less stable ecosystem. Smaller fish have reduced in number more quickly than larger species but their decreased availability has started to have a more lasting effect on the food chain, and this effect is likely to be amplified as time goes on. Moreover, the...

Triple threat polymer captures and releases

... the host material, and her group is now inserting stable isotopes into the host and guest molecules and wit...emistry, will measure the difference between those stable isotopes to help find where the guests are located relative to the host.. "We want to know where t...

Copying nature could save us energy, study shows

...c' devices are a relatively recent phenomenon. The stable wing in aeroplanes, Velcro and self-cleaning paint are all simple devices based on natural inspiration. The Centre for Biomimetic and Natural Technologies at the University of Bath is helping extend this principle to more advanced engineering challe...

Researchers find protein that silences genes

...ts, as well as animals, some epigenetic traits are stable and can be inherited when a cell divides or even into the next generation. Pikaard explains that understanding how some genes are selectively silenced and how silenced alleles can be turned on again may someday have practical benefits. For instance...

Unique soybean lines hold promise for producing allergy-free soybeans

...ly produced a protein which could not be made as a stable product." Herman discovered P34 in the early 1990s and in 2003 had successfully used a gene-silencing technique to create a soybean line in which P34 was "knocked out." However, because of public resistance to genetically modified products researche...

Stormy days ahead for coral reefs

...tormy seas. Even the vulnerable species are quite stable when they're young," says Dr Connolly. "They also tend to grow and mature quickly, so the species can recover before the next big storm arrives." However, one effect of the increased production of greenhouse gases is an increase in the acidity...

A simple feedback resistor switch keeps latent HIV from awakening

... or unbinding drive the complex into two different stable conformations. But , the authors found no experimental evidence for oligomerization of Tat; instead, both on and off forms appear to be monomers. Other studies have shown that Tat is activated by the addition of an acetyl group--a functional grou...

Coral reefs are increasingly vulnerable to angry oceans

...tormy seas. Even the vulnerable species are quite stable when they're young," said Connolly. "They also tend to grow and mature quickly, so the species can recover before the next big storm arrives." However, one effect of the increased production of greenhouse gases is an increase in the acidity of ...

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