Tag: "transforms" at biology news

Scientists Determine 3-D Crystal Structure Of Cancer-Causing Protein

...ncer-causing proteinilluminates how a mutated gene transforms cells into cancer, report scientistsfrom the Howard Hughes Medical Institute at The Rockefeller University in theFeb. 13 Nature . The determination of this structure clarifies earliermodels that sought to explain how the gene, called src , works ...

New Description Of Protein May Be Basis For Regulating Cholesterol

...rested in how the protein recognizes, processesand transforms the natural substrate into other products. The scientists usedcomputer models to describe how the substrate might be folded and shaped intoan active site in the protein, and identified where those sites were located. Terpenes can teach scientists ab...

Microsurgery Made More Accurate With Virtual Measuring Tool

...nclusion The VTM is a unique measuring tool which transforms difficult intraoperative absolute distance judgment tasks into a more amenable relative judgment task. Our current prototype has been shown here to have clinically acceptable accuracy and reliability. Potential applications of the VTM include any sur...

Cells Say The Darndest Things

...cific molecules, glows when light hits it. The dye transforms the vesicle's chemicals into beacons. The dye fastens to several different molecules ­ perhaps all the nouns in the cellular message ­ but the researchers want to know how much of each compound was in the vesicle. So Chiu and Lillard separa...

Blindness Linked To The Cytoskeleton?

...de’, a complex biochemical mechanism which transforms the initial light stimulus to a chemical signal. The latter accomplishes the communication of the photoreceptor cells with the neurons of the retina. Retinitis pigmentosa, due to a genetic defect, occurs with a frequency of 1 in 4,0...

Birds Of A Feather: The Physics Of Flocks

...ers intend tostudy how a disordered group of birds transforms into a unified flock. Knowledge about flocks of birds can be applied to collective motion in othergroups of animals, and to other problems, including the behavior of humans intheir automobiles. Understanding how groups of birds move together might ...

UNC Researchers Reduce Arthritis Severity By Turning Off Molecular Switch

...cate synovial joint lining dramaticallyexpands and transforms into an aggressive, tumor-like structure that invades anderodes the joint," Makarov says. "We started studying the role for NF-kappa B inarthritis because it controls the expression of numerous inflammatory genes, andwe knew that it's activated withi...

Microbial janitors tackle nuclear clean-up problems

...contaminated facilities. This technology elegantly transforms a naturally occurring, damaging activity,into a useful technology. Thiobacilli are one of three types of bacteria knownto cause microbially-influenced degradation (MID) of concrete. "Mother Natureis by far the best bio-engineer; we're just beginnin...

UC Berkeley biologist disputes current dogma that genetic mutation is the cause of cancer

...ge number with a small increase in expression that transforms a normal cell into a cancer cell," Rasnick said. Support comes from a number of scientists, including Athel Cornish-Bowden, director of research at the CNRS Institut Fdratif de Recherche in Marseilles, France. In a July 1999 analysis piece in Nature ...

Carbon diem: Grants awarded to research that seizes excess carbon dioxide

...iency of photosynthesis, the cellular process that transforms carbon dioxide into carbohydrates and releases oxygen at the same time. In addition to performing her experiments at Montana State, Stoots will be enlisting civil engineering professor Calvin Abernathy at the University of Memphis to help create a d...

An early warning system for dangerous breast cancer?

...ing the RhoC gene into normal breast cells in mice transforms those cells into cancerous ones with metastatic potential. The new research started with the development of a RhoC test. With help from the U-M Protein Structure Facility, and their knowledge of the RhoC gene, the team created an antibody that would ...

UT Southwestern researchers find protein transforms sedentary muscles to resemble exercised muscles

...ALLAS April 12, 2002 A calcium-signaling protein transforms sedentary, easily fatigued muscles into energy-producing, fatigue-resistant muscles, UT Southwestern Medical Center at Dallas researchers report. In a study published in todays issue of Science, the researchers found that by genetically expressing th...

Genomic data viewed on biological pathways with new computer program, GenMAPP

... acid. Glycerol kinase then takes the glycerol and transforms it into L-glycerol-3-phosphate. Each gene box is linked to information about that gene. By clicking on the box, users can get hyperlinks to the GenBank and SWISS-PROT web pages on that gene. Many of the existing MAPPs available at the GenMAPP web s...

Infrared antenna for nano-size mapping of crystal vibrations

...heir microscope: the known metal-like reflectivity transforms into a monochromatic or single-colour resonant response. This effect was predicted 19 years ago by Aravind and Metiu (University of California, Santa Barbara, USA) but not yet been experimentally observed. The infrared near-field microscope of the sa...

Ras gene causes cancer via different pathways in humans vs. mice

...ssumption and studied, for the first time, how Ras transforms human cells. Team members Nesrin Hamad, Ph.D., and Joel Elconin, M.D., set out to map how Ras communicates with various signaling pathways that, when over-activated, ultimately command cells to proliferate uncontrollably. The scientists placed huma...

Photosynthesis analysis shows work of ancient genetic engineering

... ever developed by life -- a chemical process that transforms sunlight into chemical energy, ultimately powering virtually all the living things and allowing them to dominate the earth. The evolution of aerobic photosynthesis in bacteria is also the most likely reason for the development of an oxygen-rich atmos...

Radiation-resistant organism reveals its defense strategies

...ar waste sites, where it eats up nuclear waste and transforms it into more disposable derivatives. The ability to withstand other extreme stresses, such as dehydration and low temperatures, makes the microbe one of the few life forms found on the North Pole. It is not surprising, then, that it has been the sou...

New strategies against disease revealed as scientists probe genes' tasks

...um can rest in a latent stage for years, before it transforms to its active, disease-causing state. Drugs that targeted these adaptation-related genes might prevent M. tuberculosis infections from ever taking hold, according to Schoolnik. E. M. Marcotte of the University of Texas has also identified some possi...

New proteomic techniques reveal workings of bacteria linked to cystic fibrosis

...s uses to keep itself alive in the lung, before it transforms its genome and mutates into a killer," Guina says. In some cases, PQS production diminishes in samples from patients who are older than 3. "It may be that PQS has already done its damage by the time the patient reaches 36 months, and other processes...

Scientists returning to field of eerie thermal spires

...the fractured surface of the mantle rocks where it transforms the mineral olivine into a new mineral, serpentine. The heat is not as great as that at volcanically active sites but is enough to power hydrothermal circulation and produce vent fluids of 105 to 170 F. Lost City vent fluids support a community of m...

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