Tag: "assembled" at biology news

Magnetic nanoparticles assembled into long chains

...ains of 1 million magnetic nanoparticles have been assembled and disassembled in a solution of suspended particles in a controlled way, scientists at the National Institute of Standards and Technology (NIST) report. Such particles and structures, once their properties are more fully understood and can be manip...

What mutations tell us about protein folding

... (PNAS, July, 2005). Proteins are chain molecules assembled from amino acids. The precise sequence of the twenty different types of amino acids in a protein chain is what determines which structure a protein folds into. The three-dimensional structures in turn specify the functions of proteins, which range fr...

Newly discovered birdlike dinosaur is oldest raptor ever found in South America

...e originated when all of the continents were still assembled in a single landmass during the Jurassic as far back as 180 million years ago--much earlier than previously thought. Results of an analysis of evolutionary relationships of advanced theropods undertaken as part of this research indicate that the Gond...

Defusing dangerous mutations

... look at the step-wise way in which the EJC can be assembled in two different ways, and what that means for NMD." Understanding this process should shed new light on some genetic diseases, says Kulozik, a clinical researcher at the University of Heidelberg. "Some mutations manage to escape NMD and go on to cau...

Burnham Institute to collaborate in NCI funded Center of Cancer Nanotechnology Excellence

...ecular assemblies affect cell health. The CCNE has assembled a team of investigators from the University of California, San Diego, Santa Barbara, Irvine, and Riverside campuses, Burnham Institute for Medical Research, NanoBioNexus, and General Electric. The consortium is comprised of six complementary projec...

U-Michigan receives $18.7M for National Center for Integrative Biomedical Informatics

...f Dr. Athey, the University of Michigan Center has assembled an interdisciplinary team focused on the critical ...ionwide. The interdisciplinary, collaborative team assembled at the NCIBI has remarkable breadth and depth of talent to address the challenges of data integratio...

Secrets to antibody's success against West Nile Virus surprise scientists

...re copies of the genetic material that can then be assembled into new viral particles or virions and sent out to infect other host cells and reproduce. But with the viral reproduction process blocked by the antibody, scientists suspect that the host cell eventually destroys the virion. Fremont and colleagues...

Cancer drug might help kids with fatal 'aging' syndrome

... complex process. The process starts with a fully assembled protein, then adds a fatty appendage called farnesyl very close to the protein's end, and then a tiny modification called a methyl group to a nearby building block. Finally, somewhat inexplicably, two proteins known to be modified in this way then un...

Hopkins scientists uncover 'tags' that force proteins to cell surface

...ins to the cell surface means the proteins weren't assembled properly in the cell, Li says that how and where p...proteins are in the cell nucleus, and proteins are assembled in a nearby "factory" in the cell. Also, scientists have long known that proteins prefer to stay put...

Purdue scientists treat cancer with RNA nanotechnology

... Instead, these so-called nanoparticles, which are assembled from three short pieces of ribonucleic acid, resemble miniature triangles. The microscopic particles possess both the right size to gain entry into cells and also the right structure to carry other therapeutic strands of RNA inside with them, where t...

Scientists get first glimpse at how plants, most animals repair UV-damaged DNA

... how the chemical reaction evolved over time. They assembled their measurements together like a series of stop-motion photographs to reveal the individual steps of UV repair. Zhong explained the damage and repair processes this way: When a UV photon strikes a portion of DNA, the atoms in the DNA molecule becom...

Self-assembled DNA buckyballs for drug delivery

...e, hollow buckyballs are also the first structures assembled from "dendrimerlike DNA." If three strands of artificial DNA are created such that portions of each strand are complementary to portions of another, the three strands will bind to each other over the complementary portions, creating a Y-shaped molecu...

New discovery blurs distinction between human cells and those of bacteria

... they are built from thousands of protein subunits assembled into a shell-like architecture, are an important component of bacteria. I expect there will be a much greater focus on them now." Yeates' Science paper reveals the first structures of the proteins that make up these shells, and the first high-resolut...

Master regulatory gene found that guides fate of blood-producing stem cells

...of these genes. What's more, they found that fully assembled NF-Y was activated in stem cells and disappeared when the stem cells became mature cell types, through the induction and loss of one its subunits, NF-Ya. "When we overexpressed NF-Ya in stem cells, the stem cells produced ten- to twenty-fold more st...

Life detection instrument passes key test on road to Mars

...ted with the Mars Organic Detector, which is being assembled by scientists directed by Frank Grunthaner at the Jet Propulsion Laboratory (JPL) in Pasadena together with Jeff Bada's group at UC San Diego's Scripps Institution of Oceanography. Skelley, a graduate student who has been working on amino acid detect...

Scripps research scientists solve structure of a critical innate immune system protein

...shows how the repeating leucine-rich repeat motifs assembled in TLR3 in never-before-seen detail. The portion of TLR3 the scientists solved lies on the outside of the membrane and reveals the potential binding site for its ligand, double-stranded RNA. TLR3 forms a large horseshoe shape that contacts with a nei...

Foresight Nanotech Institute launches nanotechnology roadmap

...attelle. The steering committee, currently being assembled includes: Ted Waitt,Chairman of Avalon Capital Group and The Waitt Family Foundation; AlexKawczak, Vice President, Battelle; Dr. Charles M. Lieber, Professor,Department of Chemistry and Chemical Biology, Division of Engineeringand Applied Sciences, H...

MSKCC researchers uncover structure of key protein complex in cells

... believe the protein complex they have observed is assembled at nuclear pore complexes, portals that connect the nucleus with the cytoplasm beyond. These conduits permit the transfer of information both to and from the nucleus, and are vital to proper cell function. "The next step in this research is to probe...

Reservoirs may accelerate the spread of invasive aquatic species, researchers say

...oreover, they typically contain unstable, recently assembled communities of stocked fish. An ecological hypothesis known as the fluctuating resource availability hypothesis suggests that these characteristics will enhance the susceptibility of reservoirs to invasion. Because reservoirs are more saline that fre...

Children at risk, says Illinois agricultural economist who helped assess the world's ecosystem

...umer economics. Nelson headed one of several teams assembled to study the state of the world's ecosystem today and construct scenarios that project 50 to 100 years into the future. The Millennium Ecosystem Assessment's Synthesis Report is available now and final reports will be published later this year. (See ...

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(Date:4/23/2014)... contribute to early fetal death according to a new ... Children,s Hospital Los Angeles and Ulaanbaatar, Mongolia the ... paper published today in the journal BMC Pregnancy ... between seasonal ambient air pollutants and pregnancy loss in ... the highest levels of air pollution of all world ...
(Date:4/23/2014)... Like a hungry diner ripping open a dinner roll, ... must tear open a hydrogen molecule. Now researchers have ... the two halves of its hydrogen feast. The view ... make the catalyst work better for alternative energy uses. ... shown precisely where the hydrogen halves end up in ...
(Date:4/23/2014)... research shows that male black widow spiders prefer their ... example of mate preference by male spiders. ... and Maydianne Andrade, a professor in UTSC,s Department of ... the wild that males overwhelmingly chose to mate with ... can tell whether a potential mate is well-fed and ...
Breaking Biology News(10 mins):Pollutants from coal-burning stoves strongly associated with miscarriages in Mongolia 2Halving hydrogen 2Halving hydrogen 3Halving hydrogen 4Picky male black widow spiders prefer well-fed virgins 2
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