Scientists discover key ingredient in sexual reproduction
... on California's Monterey Bay. Their experiments reveal that normal sea urchin sperm contains an enzyme called nitric oxide synthase, which remains inactive until a few seconds before fertilization. 'As the sperm approaches the egg,' notes Epel, 'the enzyme quickly produces large amounts of nitric oxide...UF researchers: technique cuts pollution from burning treated wood
...oblem from one place to another, but Wu said tests reveal that the arsenic-limestone particles also are much less likely to leach arsenic into the groundwater than the tiny arsenic particles. So far, the incinerator technique has only been tested in laboratories, Wu said. But he noted that power plants al...Scientists pinpoint mechanism for UV damage to rice plants
...V sensitivity with a repair deficiency, but didn't reveal the origin of that problem. Two possible sources of the deficiency were: 1) a regulatory mutation that decreases production of the repair enzyme, or 2) a structural mutation that leads to a functionally defective enzyme, but in normal amounts. In the...Stanford researchers win National Science Foundation grants for information technology research
...cs and algorithms to "mine" data for patterns that reveal new knowledge. "The Web has created a resource com...thodologies. The data include information that may reveal functions of specific genes in an organism's genome, and population data that may improve treatment ...Researchers discover new oceanic bacterial photopigment that converts light into biochemical energy
... sequences were assembled and analyzed at MBARI to reveal the encoded genes and their hypothetical function. The oceanic microbial genome sequence revealed a new rhodopsin-like pigment never before found in any bacterial species. (Rhodopsins are light-absorbing pigments, more familiarly associated with visi...Science: Prion proteins may signal trouble -- literally
...ing pathway of the normal prion (PrP c ) will help reveal what triggers its activity, and later, how its corrupt form (PrPS c ) wrecks cellular processes, causing the neurodegeneration of scrapie. The non-pathogenic prion protein is not known to play a role in a specific cell function, researchers said. B...NIGMS Structural Genomics Awards scale up protein structure studies
...cture can cause disease. This same structure may reveal how to design drugs to treat that disease. Although structure determination techniques--chiefly X-ray crystallography and nuclear magnetic resonance (NMR) spectroscopy--have advanced dramatically in recent years, they are still time-consuming and lab...Argonne leads new Midwest Center for Structural Genomics
...ructure can cause disease. This same structure may reveal how to design drugs to treat that disease. The Midwest Center for Structural Genomics combines the talents of researchers at Argonne, Northwestern University, University of Toronto, University of Virginia, University College of London, University of ...Stanford Synchrotron Radiation Lab receives $6 million grant to decipher protein structures
...hy images of the protein, hemoglobin, for example, reveal a complex molecule resembling a ball of twisted ribbon - a unique shape that allows hemoglobin to carry oxygen through the bloodstream. If the molecule is folded incorrectly, oxygen will not be delivered. According to JCSG, detailed, three-dimensiona...Prions may play crucial role in evolution.
...e many silent changes in their genome and suddenly reveal them," said Susan Lindquist, Ph.D., professor of molecular genetics and cell biology at the University of Chicago, Howard Hughes Investigator and principal author of the study. There are thousands of proteins in every cell and each one has to fold...MS clinical trials confirm approach, demonstrate need to carefully refine targeted peptide therapy
...als of this or similar therapies should eventually reveal the answers to these questions....Bio-X grant recipient explores link between molecular chaperones and serious diseases
.... X-rays of the protein hemoglobin, for example, reveal a complex molecule that resembles a ball of twisted ribbon - a unique shape that allows hemoglobin to carry oxygen through the bloodstream. If the molecule is folded incorrectly, oxygen will not be delivered. The human body produces thousands of pr...Helping energy conservation projects survive the budget axe
...n't survive the budget axe. Now, energy engineers reveal that a more comprehensive analysis of the companys energy costs could increase the value of the project, allowing the company to carry out conservation plans that might otherwise appear too expensive. Digging out all of the savings above and...November GEOLOGY and GSA TODAY highlights
... three-dimensional images of the inclusions. These reveal the amounts of gas and oil in the inclusions, data that can be used to model both the composition and the pressure of the paleofluids. In UK North Sea case studies, the authors use the technique to show how high fluid pressures evolved through geolog...Analysis of Martian meteorite using unique magnetic microscope
...roscope and perform a simple experiment that would reveal whether the meteorites interior had been subjected to temperatures above 40 degrees Celsius (104 degrees Fahrenheit).The instrument that made this study possible is called the Ultrahigh Resolution Scanning SQUID Microscope. It was designed and built ...Searching for the secrets of drug-free transplants
...immune system, where small changes in the code may reveal a patient's potential for rejection. The funding will enable both areas of research, as well as others, to be fully explored in order to arrive at a distinct and reliable laboratory profile consistent with the tolerance state. Other collaborators f...Tiny RNA may be universal regulator of developmental timing in animals
... emerge, such global comparisons of sequences will reveal other regulatory genes by finding long regions of ...g disparate animal genomes. These analyses should reveal the remnants of the RNA world that genomes still carry. The paper from the Ruvkun lab also demonstr...Experts to share biotech future world
...genomes of plants and their microbial enemies will reveal specific plant/pathogen interactions at the cellular level, leading to possible elimination of some destructive crop diseases. Solving Neurological Mysteries, e.g. Alzheimer's Disease. Researchers have discovered potential "alterations" in glycosyl...December Geology and GSA Today highlights
...re meter (5 per square foot). Now, recent surveys reveal far fewer, only 3 per square meter (0.3 per square foot). Although a few highprecipitation years since 1981 have resulted in occasional flow to the delta, the findings suggest that these rare events have not restored the ecosystem to its original pro...Scientists reveal details of brain cell communication: implications for learning & memory
...es that govern brain function. "Our findings reveal fundamental properties of synapses that enables them to trigger the changes in neurons that underlie learning and memory," says Karel Svoboda, the principal author of the study which will be published tomorrow in Nature. Svoboda, an investigator of t...