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Tag: "essential" at biology news

Triple threat polymer captures and releases

... Xu, Ph.D., are exploring those properties and one essential irony ?the material, similar to a hydrogel because it takes in water, oddly becomes stronger when water absorbs into it. Think of a soggy diaper as a hydrogel. If you liken Wooley' s materials to a diaper, that wet one becomes nearly petrified. T...

Female guppies risk their lives to avoid too much male attention

...tanding why and how [sexual segregation] occurs is essential if we are going to conserve and protect species and habitats," explains Croft, who points out that fish are not the only species who display this social characteristic. "In many ecosystems, predators are the first to go extinct, and our work shows th...

In drug design, a loose fit may be best bet

...damental to cellular signaling, a function that is essential to all cells in all systems in the body, including our sensory systems of hearing, balance, taste, and smell." By tweaking portions of the TRH molecule, the researchers developed six slightly edited versions, while retaining most of the properties o...

Scientists take 'snapshots' of enzyme action

...al structure and functional mechanism of an enzyme essential for eliminating unwanted, non-nutritional compounds such as drugs, industrial chemicals, and toxic compounds from the body. The detailed mechanism of action will help scientists understand how these compounds are eliminated and what goes wrong in cas...

The molecular post office inside the cell

...rstanding this key event during protein sorting is essential to understanding how secretory and membrane proteins are expressed in a cell. ...

New bird flu drug promises to beat the problem of resistance

...specific part of the neuraminidase, a part that is essential for the neuraminidase to carry out its natural job. This process stops the neuraminidase enzyme in its tracks, and makes it impossible for the virus to develop resistance to the new molecule. The researchers are currently narrowing-down the class...

Research links protein to breast-cancer migration

... cancer but we have found that the LPP molecule is essential for the correct function of PEA3." "If we can target the LPP protein and stop it from working in cancerous cells, we have a possible new route to therapy." The research, published in the scientific journal Molecular and Cellular Biology, may have i...

Metal homeostasis research in plants will lead to nutrient-rich food and higher yielding crops

...erefore, plants engineered to be better sources of essential elements would offer humans improved nutrition. Fo...ts. Guerinot's lab has previously identified the essential Iron transporter responsible for Iron uptake from the soil. This Iron transporter is IRT1. In addit...

Wild meerkats school their young

...ater understanding of the evolution of teaching is essential if we are to further our knowledge of human cultural evolution and for us to examine the relations between culture in our own species and cultural behaviour in other animals." Like any good teacher, the helpers would also monitor the pup after they...

When it comes to gene transcription, random pauses aren’t quite so random, study finds

...genes that encode thousands of proteins, which are essential for life. Each gene consists of a set of DNA bases arranged in a unique sequence that carries explicit instructions for building a specific protein. But one misplaced letter in that sequence--a T substituted for a C, for example--could produce a dama...

Genetic snooze button governs timing of spring flowers

...to exert precise control over flowering, a process essential for plant reproduction and fruiting and that has enormous implications for agriculture. Flowers are the reproductive organs of plants and are responsible for forming seeds and fruit. As their name implies, biennials complete their life cycles in t...

MatBase -- A new transcription factor knowledge base released by Genomatix

...enomatix´Head of Biological Databases." Quality is essential for all further downstream analyses. Our quality standards were the key to success for MatInspector, the de facto gold standard in gene promoter analysis, used by more than 31.000 scientists around the globe today. More than 80% of our matrices match...

Protein-coated dental implants could improve bone regeneration

...t bone. That process impeded regeneration of other essential tissues around the tooth. Applying the protein to implants proved more beneficial. "There was almost complete regeneration," he says. "The generated bone bonded with the implant's surface and, eventually, existing bone in the gums. That allowed f...

Scientists discover why cornea is transparent and free of blood vessels, allowing vision

...ipal investigator of the study. "A clear cornea is essential for vision. Without the ability to maintain a blood-vessel-free cornea, our vision would be significantly impaired," he says, adding that clear, vessel-free corneas are vital to any animal that needs a high level of visual acuity to survive. The co...

Study links high levels of nitric oxide to infertility and sperm DNA damage

...an scientists have linked a chemical that plays an essential role in many bodily functions to sperm DNA damage and male infertility, the 22nd annual conference of the European Society of Human Reproduction heard today (Monday). Dr Iraj Amiri, embryology laboratory director at the IVF Centre, Fatemieh Hospital...

When the going gets tough, slime molds start synthesizing

...ly we have identified the machinery that makes the essential precursor for the bioactive DIF-1 molecule.' " Kay replied that he and co-lead author Tamao Saito, PhD., a scientist on sabbatical in his lab, had also focused on these unusual type III PKS genes following the recently completed final assembly and ...

FSU biologists uncover mechanisms that shape cells for better or worse

...h Factor Receptor (EGFR) in a process that is also essential to development in humans and a wide range of other organisms. "Our study shows that EGFR activation in the cells surrounding the fruit fly oocyte acts to turn off a gene known as Dystroglycan, halting production of its protein. EGFR must shut down ...

Over-use of antibiotics in fish-for-food industry encourages bacterial resistance and disease

...er-use of antibiotics in the rearing of finfish is essential in preventing these detrimental effects to fish, animal and human health. ...

NHGRI announces latest sequencing targets

... evolutionary primate tree and making available an essential resource for researchers unraveling the genetic fa...with humans. For example, the rhesus macaque is an essential research model for drug development, neuroscience, behavioral biology, reproductive physiology, endo...

How ancient whales lost their legs, got sleek and conquered the oceans

...hen a drastic change occurred to inactivate a gene essential for limb development. This gene - called Sonic hedgehog - functions during the first quarter of gestation in the embryonic period of the animals' development, before the fetal period. In all limbed vertebrates, Sonic hedgehog is required for normal ...

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