structures 2 5

Tag: "structures" at biology news

Tagging pathogens with synthetic DNA 'barcodes'

...e a Y-shaped structure. Combining several of these structures creates a web with many branching ends. "While DNA is flexible, the short strands used here are quite rigid," Luo said. "A long piece of spaghetti is floppy, but a short bit of it is quite stiff." An antibody or some other molecule that will bind to...

'Shifty-eyed' Monkeys Offer Window Into Brain's Social Reflexes

... studies, they plan to alter or disrupt neurons or structures in the social-processing regions of the monkeys' brains, and explore whether the resulting behaviors mimic the symptoms of autism. Also, he said, the researchers can explore the environmental contribution to autism by studying the effects of manipula...

New Lab Research May Help Those Deafened By Immune System Attack

... attacks the inner ear, home to the tiny, delicate structures that allow us to hear. Without warning, in days or weeks, patients lose the ability to hear in one or both ears. Some might get part or all of their hearing back if they take steroid medicines, but many are left to cope with partial or total deafness...

Elderly mice yield clues to the process of growing old

...ewer circulating red blood cells. Mitochondria are structures within cells that provide energy for cells to move, divide, contract and secrete products vital for the health of organisms. "We think that the key to what is happening in aging is that as (genetic) mutations or DNA damage accumulates, critical cell...

Rensselaer researchers develop approach that predicts protein separation behavior

...to test the model against more complicated protein structures as part of its further development," said Breneman. "The outcome of this work will yield fundamental information about the complex relationship between a protein's structural features and its chemical binding properties, and also aid in evaluating it...

Quantum dots provide a faster, more sensitive method for detecting respiratory viral infections

...eads, called quantum dots, which bind to molecular structures that are unique to the virus's coat and the cells ...antum dots have been linked to antibodies keyed to structures unique to RSV's coat. As a result, when quantum dots come in contact with either viral particles or ...

Simple sea sponge helps scientists understand tissue rejection

...ve methods and studied, and because its fingerlike structures make grafting experiments relatively straightforward. In experiments carried out on these sponges this summer, Dr. Fernndez-Busquets and his colleagues are studying the cells and molecules believed to be involved in the process of tissue rejection. ...

Insight into our sight: A new view on the evolution of the eye lens

...volution of complex and physiologically remarkable structures such as the vertebrate eye has long been a focus of intrigue and theorizing by biologists. In work reported this week in Current Biology, the evolutionary history of a critical eye protein has revealed a previously unrecognized relationship between c...

Bleach found to neutralize mold allergens

...al spores appeared smaller, and lacked the surface structures present on healthy spores. In addition, surface allergens were no longer detected by ELISA antibody-binding assays, suggesting that the spores were no longer allergenic. The National Jewish researchers then allergy-tested eight Aspergillus-allergic...

UIC developing drug for SARS

...olecular configuration atom by atom. The detailed structures will reveal the precise locations and chemical properties of pockets where the enzymes bind the SARS virus's long protein chain. This information will help Arun Ghosh, professor of chemistry at UIC, build protease inhibitors, like the prototype he a...

Unweaving amyloid fibers to solve prion puzzles

...agnetic resonance imaging, don't work with fibrous structures such as amyloids. And scientists depend on these high resolution images of molecules in order to study their function. Now, researchers have found a way to work around these limitations, illuminating the configuration of these sometimes pernicious m...

Researchers create functioning artificial proteins using nature's rules

...or protein family, all family members share common structures and functions. By examining more than 100 members of one protein family, the UT Southwestern group found that the proteins share a specific pattern of amino acid selection rules that are unique to that family. "What we have found is the body of inf...

Breakthrough in micro-device fabrication combines biology and synthetic chemistry

...dhage, "By demonstrating that biologically derived structures can be chemically modified without changing the starting shapes or fine features, we have opened the door for new research and development in the processing and application of many devices that would otherwise be very difficult or expensive to produc...

Living with salt

...nisms from the Dead Sea. After determining the 3-D structures for several halophilic proteins, researchers were able to explain how these proteins not only cope with high salinities, but are actually "addicted" to them. However, the alga Dunaliella salina is an organism of a different streak: it is able to grow...

'Underground' tunnels discovered as means for communication between immune system cells

...ot have discovered the existence of these physical structures and conducted the studies that revealed their role... to explain the function of tunneling nanotubules, structures that were first described in fruit flies in 1998, and subsequently, identified in a handful of diffe...

Simple explanation for complex pattern of feather development

...owth of complex feathers found that plumed feather structures involve the coordination of at least two genes that activate and that inhibit barb growth. "Understanding these mechanisms of feather growth gives a whole new perspective on the unique beauty of feathers," said Richard Prum, senior author on the stu...

Scientists uncover new clues about brain function in human behavior

...nal brain imaging (fMRI) to study the amygdala and structures linked to it in 13 participants with Williams Syndrome who were selected to have normal intelligence (Williams Syndrome is usually associated with some degree of mental retardation or learning impairment) and compared to healthy controls. Andreas Mey...

No small feat: First ever gene therapy success for muscular dystrophy achieved

...2, a protein that is essential for maintaining the structures that surround muscle cells and is an integral link...folding and reestablishing the missing link to key structures inside the cell. Clearly, the authors are most excited about the impressive results achieved in the...

Researchers discover how malaria parasite disperses from red blood cells

...es a roughly spherical shape, covered with rounded structures that resemble the petals of a flower. Shortly thereafter, the blood cell's membrane appears to break apart. At roughly the same time, cellular compartments, called vacuoles, which encase the newly formed merozoites, also break apart. The entire pr...

Tadpole soon to help in the fight against cancer and lymphedema

...important in the development of complex biological structures like lymphatic vessels. Unraveling the lymphatic vessel system through tadpoles With their research, the research group op Peter Carmeliet indicated that tadpoles are extremely suitable for the study of lymphatic vessels. To do this they used Prox1...

1 2 3 4 5 6 7 8 9 10