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Tag: "structures" at biology news

NC State scientist finds soft tissue in T. rex bones

... transparent and pliable, and microscopic interior structures resembling blood vessels and even cells are still ...weitzer compared the findings from the T. rex with structures found in modern-day ostriches. In both samples, transparent branching blood vessels were present, an...

The Shapes Of Life: NIGMS Project Yields More Than 1,000 Protein Structures

...rmined more than 1,000 different structures. These structures will shed light on how proteins function in many l...y proteins found in nature. “One thousand protein structures is a significant milestone for the PSI, and it shows an impressive return on the investment in the t...

UCSD discovery may help extend life of natural pesticide

... C. elegans strongly suggested that specific sugar structures are likely critical for Bt toxin susceptibility," said Joel Griffitts, the first author on the paper and a former graduate student with UCSD biology professor Raffi Aroian. "This latest paper demonstrates what these sugars actually do. They provide a...

RNA project to create language for scientists worldwide

...he has developed for analyzing and classifying RNA structures have been adopted internationally to advance RNA structure prediction and simulation and RNA sequence analysis. His work is supported by the National Institutes for Health and the American Chemical Society. Leontis describes RNA molecules as "the so...

Self-assembled nano-sized probes allow Penn researchers to see tumors through flesh and skin

...ome membrane can be used to optically image tissue structures deep below the skin ?with the potential to go even deeper," said Michael J. Therien, a professor of chemistry at Penn. "It should also be possible to use an emissive polymersome vesicle to transport therapeutics directly to a tumor, enabling us to ac...

Genrate: a generative model that finds and scores new genes and exons in genomic microarray data

...ound by GenRate. Three of the highest-ranking gene structures found by GenRate, each containing thousands of bases from the genome, are confirmed using RT-PCR experiments. ...

Protein offers way to stop microscopic parasites in their tracks

...around, given their lack of appendages or hairlike structures known as cilia or flagella. Researchers had determined that Toxoplasma has a rotating protein-based conveyor belt on its underside that enables it to move. To push forward, any rotating object -- be it a belt or a wheel -- needs traction, or the abi...

Mayo Clinic Researchers Create 'Obedient Virus'; First Step To Use Measles Virus Against Cancer

...y invented a "molecular tag" that they attached to structures on the outside of the cancer-seeking measles virus. This tag is the key innovation of their work and central to the success of the team's investigation. It enables researchers to grow retargeted measles virus on special "universal substrate cells" --...

Supercomputer Dedicated To Bioengineering, Computational Biology Installed

... the behavior of protein molecules and subcellular structures such as nerve synapses and cardiac muscle cells, to multicellular tissue and the whole heart. Bioengineering professor David Gough (left), principal investigator of NBCR Peter Arzberger, Bioengineering vice chair Andrew McCulloch, director of SDSC's...

Hirsute Or Hairless? Two Proteins May Spell The Difference

...nd mammary glands. How complex, three-dimensional structures emerge from single sheets of cells is a fundamenta...ystem for studying this question—specifically, how structures and organs develop from buds. In a new study, Elaine Fuchs and colleagues use a three-pronged approa...

Programmable cells: Engineer turns bacteria into living computers

...ing cells as workhorses that detect hazards, build structures or repair tissues and organs within the body. "We are really moving beyond the ability to program individual cells to programming a large collection -- millions or billions -- of cells to do interesting things," said Ron Weiss, an assistant professo...

Liposome finding implies electrical effect on cell development

...sly unknown process involved in the development of structures like axons and dendrites in nerve cells. Hayes will present the results of the experiments at a 2 p.m. March 15 session entitled "Colloids in Complex Fluids" at the American Chemical Society meeting in San Diego. In the experiments, the researchers...

Stem Cell Research Shows Potential for Replacing Tissue Damaged in Heart Attacks

...ls, makes them form rhythmically beating embryonic structures termed “cardiac embryoids.?Each cardiac embryoid contains a population of beating cardiac myocytes that is nearly homogeneous. “The results are significant because we were able to induce the cells to transform the way we wanted them to. It’s a major...

Institute for Systems Biology Symposium Addresses Need for Better Computational Tools

...r at ISB. We have already predicted 50,000 protein structures and are well on our way to reaching the goal of be...sional structures. Understanding three dimensional structures allow researchers to identify the presumptive function of proteins. These functions can then be assi...

Researchers unlock mechanism creating jigsaw puzzle-like plant cells

... molecular give and take that allows cells in thin structures such as leaves to develop in a jigsaw-like pattern...n a finely tuned biological dance. The results are structures that, despite their delicate appearance and slenderness, provide the strength necessary to allow the...

Cerebral navigation: How do nerve fibers know what direction to grow in?

...nerve cells in an intricate network. Growth cones, structures in the tips of growing axons, are responsible for steering axons in the right direction, guided by a complex set of signals from cells they encounter along the way. Some signals lure the axons to extend and grow in a particular direction; others are ...

Decoding the logic of olfaction

... spots in the olfactory bulb, such that individual structures in the olfactory bulb, called glomeruli, each rece...rly intriguing that odorants with related chemical structures showed highly similar patterns of activation in the cortex. "This finding gives a hint that there is...

Genpathway and Baylor College of Medicine Identify New Genes in Breast Cancer

... spots in the olfactory bulb, such that individual structures in the olfactory bulb, called glomeruli, each rece...rly intriguing that odorants with related chemical structures showed highly similar patterns of activation in the cortex. "This finding gives a hint that there is...

Biochemists report discovery of structure of major piece of telomerase; implications for cancer

... Feigon's laboratory studies the three-dimensional structures of DNA and RNA, and how proteins and DNA and RNA recognize one another to switch genes on and off in cells. Her laboratory has worked on telomeres and telomerase for more than a decade. A member of UCLA's faculty since 1985, Feigon was the first UCL...

Scientists discover that three overlapping signals in embryo help get the backbone right

... block other signals to allow the back, or dorsal, structures to form. Thirteen years ago, Richard Harland, prof... embryo caused surrounding tissues to develop into structures normally found on the back. Despite repeated attempts, however, no one could show that blocking sign...

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