Heart and Soul: The Blood Vessels And Brain Use Common Guide
...nnecting withabout a thousand target cells as they assemble the adult nervous system. By showing that these two processes share at least one importantmolecule, the study raises intriguing questions about how much crosstalk existsbetween the growth of blood vessels and nerve cells, says Klagsbrun. It a...How Did Life Begin? Biochemical Evolution On Chemical Surfaces
... how small organic molecules may have been able to assemble on the surfaces of minerals into self-replicating biomolecules--the essential building blocks of life. "The problem with most theories on the origin of life is that there is too muchwater around for the kind of organic chemistry that needed t...Electron Accelerator Provides Unique Proof Of Gene Repair Process In Living Cells
...d previously shown indirectly--thatrepair proteins assemble quickly at breakage sites as they begin their usual response to DNA damage," said Petrini, noting that the other possibility would have been for DNA breaks to migrate to specialized nucleus compartments, as happens with some genetic functions. "This ...Who Needs Flowers? Transgenic Plants Sprout Embryos On Leaves
...'s protein productinteracts with other proteins to assemble seeds. "We don't know that this work will definitely lead to applieduses," Harada said. "But if it does, it will be anotherexample where beneficial applications come out of basicresearch -- in this case, basic research into plantembryogenesis and ho...Clever Chemistry Protects Beetle Babies
... blocks related to ordinary fatty acidsare used to assemble the rings. Many different combinations of the buildingblocks then create a highly complex mixture, a library of large rings. The defensive chemicals can be seen under high magnification, as shown in MariaEisner's SEM (scanning electron microscopy) p......recise process forcausing molecules in solution to assemble themselves into two-dimensionalcrystals with pre-programmed topographic features. Such molecular self-assemblypresents a 'bottom-up' approach to the fabrication of objects specified withnanometer precision. The work of Seeman's team, which is repor......al elements can form motifs or subdomains which assemble to domains. Domains are structurally and functionally independent, where as motifs or subdomains are stabilized by other parts of the protein and are not structurally and functionally independent. The evolution of proteins has generated...Hopkins Study Reveals Key Details On How We Get Energy
...ents" for ATP come together. At another site, they assemble as ATP, and at the third site, the rotationreadies the fully formed ATP to pop off the synthase molecule, for usethroughout the cell. The Hopkins team captured the image of the ATP synthase cap while all ofits sites were in some stage of ma...New "Gene Map" Doubles Number Of Genes
...ogists and computer specialists worked together to assemble the Gene Map," noted Dr. David J. Lipman, NCBI director, "and putting it on the web extends the collaboration to the entire worldwide biomedical research community. The Gene Map is for everybody." The online version of the 1996 Gene Map has been a po...While astronauts assemble and activate the first portion of the InternationalSpace Station, scientists working with NASA's Marshall Space Flight Center arepreparing experiments that will take advantage of the most extensive space-basedlaboratory ever devised. And although the...Growing Up On Their Own: Smart Plastics Organize Themselves Into Useful Optical Devices
...micalengineers have created plastic materials that assemble themselves intosophisticated optical devices known... we'llbe able to make 3-D nanostructures that will assemble themselves," saysYablonovitch, professor of electrical engineering at UCLA. Applications are...Gene Study Shows Turtles Are Next Of Kin To Crocodiles And Alligators
...earch study," says Hedges, who decided recently to assemble all the geneticdata available in order to resolve the question. Hedges and Poling collected new data for two nuclear genes and added this newinformation to all gene-sequence data available for these species in the publicgenetic databases worldwide.......ecules) with crown etherhosts at the "focal point" assemble in layers on a three-armed ammonium salt toform a macromolecular aggregate. The huge supramolecule takes three days to form. Again the process was firstdescribed in Angewandte Chemie. (Angew. Chem. Int. Ed. 1998, 37, No. 23:"Dendritic Pseudorotaxane...Understanding Molecular Self-Assembly Opens Door For New Sources Of Wood-Like Materials
...all of woodforms will someday help wood scientists assemble wood-like composites withoutusing trees. Virginia Tech wood science and forest products professor WolfgangGlasser will review recent discoveries about the way cell-wall of woodself-assembles and present examples of self-organizing cellwall-like polym...... the cell's protein-producing factory telling itto assemble proteins needed for skin cell function. "Eight hours after skin was exposed to UV radiation in our study, amounts ofretinoic acid receptor messenger RNA and protein were as much as 70 percentlower than control levels. They remained below normal leve...... the Evaluation of Risks to Human Reproductionwill assemble a dozen or more scientists with applicable expertise to evaluatethe substances in public sessions, according to a center announcement in theFederal Register. The sessions are tentatively planned for August in theWashington, D.C., area. Th......es cometogether by the thousands and spontaneously assemble into a lattice, like asheet of ice forming when the temperature drops. The clathrin lattice then foldsinto a ball. "If you take a bunch of triskelions, they will self-assemble into a sphere,"Brodsky says simply. The assembly is triggered when legs o......e Project. While the Human Genome Project aims to assemble a common, "one-size-fits-all"map of human DNA sequence by the year 2003, the drug-company consortium plans totake the genetic decoding effort a step further. Its goal: to create a moredetailed genetic blueprint that can be used by pharmaceutical comp...