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Complex in Biological News

Landmark project to map genomics of complex ant systems

Emory researchers are tapping the latest-generation DNA sequencing technology to become the first explorers of the genomics of agricultural ant societies. "This project is one of the first attempts to use genomics to understand a complex interacting system, rather than a single organism," says...

Siberian jays use complex communication to mob predators

When mobbing predators, Siberian jays use over a dozen different calls to communicate the level of danger and predator category to other members of their own group. A Swedish study from Uppsala University, published in the Proceedings of the Royal Society Biological Sciences , shows birds have ev...

EMBL scientists develop first fully automated pipeline for multiprotein complex production

Most cellular processes are carried out by molecular machines that consist of many interacting proteins. These protein complexes lie at the heart of life science research, but they are notoriously hard to study. Their abundance is often too low to extract them directly from cells and generating th...

Caltech scientists control complex nucleation processes using DNA origami seeds

PASADENA, Calif.--The construction of complex man-made objects--a car, for example, or even a pizza--almost invariably entails what are known as "top-down" processes, in which the structure and order of the thing being built is imposed from the outside (say, by an automobile assembly line, or the ...

First tri-continuous mesoporous Silica complex structure developed in Singapore

Singapore's Institute of Bioengineering and Nanotechnology (IBN) has developed the first tri-continuous mesoporous material using a unique surfactant template. This completely new porous structure previously been predicted only mathematically (see reference below). In the current Nature Chemis...

NIST-Cornell team builds world's first nanofluidic device with complex 3-D surfaces

GAITHERSBURG, Md.Researchers at the Commerce Department's National Institute of Standards and Technology (NIST) and Cornell University have capitalized on a process for manufacturing integrated circuits at the nanometer (billionth of a meter) level and used it to develop a method for engineering t...

DOE awards UGA $3.1 million to support complex carbohydrate study nationwide

Athens, Ga. The Department of Energy has awarded the University of Georgia Complex Carbohydrate Research Center a four-year, $3.1 million grant to continue as a national resource for researchers who study the complex carbohydrates of plants and of microbes that interact with plants. The grant for...

Artificial cells, simple model for complex structure

A simple, chemical materials model may lead to a better understanding of the structure and organization of the cell according to a Penn State researcher. "Cells are interesting because they show organization even at the level of the cytoplasm, and while it is thought to be important for cell fu...

SUNY Downstate researchers find that memory storage molecule preserves complex memories

The brain acts as a computer to both store information and process that information. In a computer, separate devices perform these roles; while a hard disk stores information, the central processing unit (CPU) does the processing. But the brain is thought to perform both these functions in the sam...

New tool could unpick complex cancer causes and help sociologists mine Facebook

Researchers at the University of Warwick's Department of Statistics and Centre for Complexity Science have devised a new research tool that could help unpick the complex cell interactions that lead to cancer and also allow social scientists to mine social networking sites such as Facebook for usef...

Inherited genetic cause, possible treatment found for complex lung disorder

CINCINNATI A tale of two sisters has helped researchers solve a medical mystery and discover a familial genetic mutation that causes an inherited form of the lung disease Pulmonary Alveolar Proteinosis (PAP). Reporting their results in the Nov. 24 Journal of Experimental Medicine , a research...

Study: Wildlife need more complex travel plans

A new UC Davis study says that people trying to help nature by designing corridors for wildlife need to think more naturally. "Human beings tend to think in terms of regular, symmetrical structures, but nature can be much more irregular," said UC Davis postdoctoral researcher Matthew Holland, t...

Genome of simplest animal reveals ancient lineage, confounding array of complex capabilities

WALNUT CREEK, Calif. As Aesop said, appearances are deceivingeven in life's tiniest critters. From first detection in the 1880s, clinging to the sides of an aquarium, to its recent characterization by the U.S. Department of Energy Joint Genome Institute (DOE JGI), a simple and primitive animal, T...

NYU scientists identify critical protein complex in formation of cell cilia

NEW YORK, August 19, 2008 An international team led by NYU Cancer Institute have identified a protein complex that regulates the formation of cilia, which are found on virtually all mature human cells and are essential to normal cell function. The new report, published this week by Developm...

Texas A&M researchers develop tool to study complex clusters of genes

COLLEGE STATION, July 2, 2008 -- Two Texas A&M University researchers have developed a computational tool that will help scientists more accurately study complex units of clustered genes, called operons, in bacteria. The tool, which allows scientists to analyze many bacterial genomes at once, is m...

Researchers visualize complex pigment mixtures in living cells

TEMPE, Ariz. In a technical advance that could allow researchers to watch cells as they act during the process of photosynthesis, scientists have developed a method that extends the power of fluorescence-mediated bio-imaging to see discrete pigments inside live cells of bacteria. The method i...

New process makes nanofibers in complex shapes and unlimited lengths

CHAMPAIGN, Ill. The continuous fabrication of complex, three-dimensional nanoscale structures and the ability to grow individual nanowires of unlimited length are now possible with a process developed by researchers at the University of Illinois. Based on the rapid evaporation of solvent from s...

Rebuilding the evolutionary history of HIV-1 unravels a complex loop

An essential component of the human immunodeficiency virus (HIV-1) molecular machinery responsible for infecting cells consists of functionally-specialized layers, according to a study by investigators at the University of California San Diego (UCSD) Antiviral Research Center (AVRC), published Nov...

DNA replication behavior in complex organisms may foreshadow leaps in genomic discoveries

For the first time, findings by scientists at the Genome Institute of Singapore (GIS) may be paving the way for more efficient analyses and tests related to the replication of cells, and ultimately, to the better understanding of human biology, such as in stem cell research. Faithful duplicatio...

Stowers Institute's Workman Lab discovers novel histone demethylase protein complex

The Stowers Institute's Workman Lab has discovered a novel histone demethylase protein complex characterized in work published today in Molecular Cell . The Histone H3 protein is an important component of chromatin, the packing material wrapping up chromosomal DNA and preventing unwanted tra...

Estimation of isolation times in the Drosophila simulans complex

Allentown, PA - The Drosophila simulans species complex continues to serve as an important model system for the study of new species formation. The complex is comprised of the cosmopolitan species, D. simulans, and two island endemics, D. mauritiana and D. sechellia. A substantial amount of effort...

First 'rule' of evolution suggests that life is destined to become more complex

Scientists have revealed what may well be the first pervasive rule of evolution. In a study published in the Proceedings of the National Academy of Sciences researchers have found evidence which suggests that evolution drives animals to become increasingly more complex. Looking back throug...

Epigenetic regulation by the MMB/dREAM complex

In the March 1 issue of G&D, Dr. Joseph Lipsick (Stanford University) and colleagues demonstrate that proteins encoded by the Myb oncogene and the RB tumor suppressor gene function together in the Drosophila MMB/dREAM complex to epigenetically regulate mitotic cell cycle progression. Drosophila...

Research leading to tools for managing bovine respiratory disease complex

MANHATTAN, KAN. -- Bovine respiratory disease complex has multiple causes. It's sometimes hard to classify and predict. It also costs the beef industry more than any other disease -- an estimated $690 million in 2006, according to one report. That's why a team of Kansas State University researc...

Corals -- More complex than you?

The humble coral may possess as many genes ?and possibly even more ?than humans do. And remarkably, although it is very distant from humans in evolutionary terms, it has many of the immune system genes that protect people against disease. In fact, it is possible some of these were pioneered by co...

Scientists explore how complex organs develop from a simple bud

The current issue of Differentiation, guest-edited by Brigid Hogan, highlights several scientific investigations into the complex biological mechanism known as branching morphogenesis. Through a series of seven laboratory reviews, important insights governing this process during animal development ...

Slow brain waves play key role in coordinating complex activity

While it is widely accepted that the output of nerve cells carries information between regions of the brain, it's a big mystery how widely separated regions of the cortex involving billions of cells are linked together to coordinate complex activity. A new study by neuroscientists at the Universi...

MIT finds most complex protein knot ever seen

An MIT team has discovered the most complicated knot ever seen in a protein, and they believe it may be linked to the protein's function as a rescue agent for proteins marked for destruction. "In proteins, the three-dimensional structure is very important to the function, and this is just one ex...

Bacteria could make new library of cancer drugs that are too complex to create artificially

Researchers at the University of Warwick are examining a way of using bacteria to manufacture a new suite of potential anti-cancer drugs that are difficult to create synthetically on a lab bench. The bacterium Streptomyces coelicolor naturally produce antibiotics called prodiginines. This gr...

A protein complex that untangles DNA

Every second, the cells constituting our bodies are replaced through cell division. Researchers at Karolinska Institutet have found a piece of the puzzle of how genetic information remains intact despite this continuous exchange of cells. Their results are presented in the latest issue of the scien...

Researchers show how brain decodes complex smells

Duke University Medical Center researchers have discovered how the brain creates a scent symphony from signals sent by the nose. In studies in mice, the researchers found that nerve cells in the brain's olfactory bulb -- the first stop for information from the nose -- do not perceive complex scen...

Newly identified protein complex sheds light on axon growth mechanism

New research sheds light on the molecular mechanisms underlying axon growth and synapse formation in the nematode worm C.elegans. In a study published today in the open access journal Journal of Biology, researchers have characterised a new protein, UNC-69, required for proper locomotion . They sho...

Bees solve complex colour puzzles

Bees have a much more sophisticated visual system than previously thought, according to a new UCL (University College London) study in which bees were able to solve complicated colour puzzles. The findings shed light on how brains resolve one of the most difficult challenges of vision - namely, rec...

Novel protein complex enables survival in hostile environment

Biswarup Mukhopadhyay and Eric Johnson from the Virginia Bioinformatics Institute at Virginia Tech have discovered a novel enzyme that represents an ancient detoxification system and provides a clue to the development of early metabolism on earth. The research appears in the Nov. 18, 2005 issue o...

Mouse genome much more complex than expected

Over 100 scientists worldwide publish joint study in Science More than 100 scientists from Australia, Asia, Europe and the US have been probing the genome of the mouse in a joint study lasting several years. Their results in some aspects have completely overturned geneticists' traditional assump...

MSKCC researchers uncover structure of key protein complex in cells

Scientists at Memorial Sloan-Kettering Cancer Center (MSKCC) have uncovered the structure of a network of proteins that help regulate the life cycle of cells. Understanding the network's physical layout is an important step toward learning its precise function, and in finding ways to correct flaws ...

Simple explanation for complex pattern of feather development

Biologists testing a mathematical model of the mechanism birds use to control the growth 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 wh...

Scientists document complex genomic events leading to the birth of new genes

A team of scientists led by Peer Bork, Ph.D., Senior Bioinformatics Scientist at the European Molecular Biology Laboratory, report today in the journal Genome Research that they have identified a new primate-specific gene family that spans about 10% of human chromosome 2. Comprised of eight family ...

Navigating in the ocean of molecules

... structurally-based lineages form the branches of the tree," explains Stefan Wetzel: "With the help of Scaffold Hunter we move along the branches from complex to increasingly simple structures which may be similar in their effect." Thus, the researchers identify structurally simple scaffolds with promising c...

Scientists find universal rules for food-web stability

... relatively long periods of time. Understanding complex systems such as food webs present major challenges...s from the Max Planck Institute for the Physics of complex Systems (MPIPKS) in Dresden, Germany, have develop...ly analyze the impact of innumerable parameters on complex systems. "By using a method called generalized ...
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