Tag: "solved" at biology news

A wolf in sheep's clothing: Plague bacteria reveal one of their virulence tricks

...ral Microbiology, and graduate student Gerd Prehna solved the structure for one region of the YpkA protein, a "binding domain" where it interlocks with another protein on the host cell's membrane. By looking at the crystal structure of this protein-protein complex, Prehna discovered that the configuration l...

Uncovering DNA's 'sweet' secret

... the past 13 years. Recently, Egli and colleagues solved a structure that divulges DNA's"sweet" secret. In a recent issue of the Journal of the AmericanChemical Society, Egli and colleagues report the X-ray crystal structureof homo-DNA, an artificial analog of DNA in which the usual five-carbonsugar has be...

Vax and Pax: Taking turns to build an eye

...and former postdoctoral fellow Jin Woo Kim, Ph.D., solved the mystery. Stina Mui, a former graduate student in the Lemke lab had originally observed Vax2 in the cytoplasm of cultured cell lines and Kim had taken on the task of figuring out why. He showed that Vax2 protein is indeed expressed in the same ret...

Researchers determine why wolves not dispersing as fast as expected in Yellowstone

...l biologists at the University of Alberta recently solved the puzzle. "When the wolves traveled far distances in their new environment it was easy for them to lose track of their mates, and the further they traveled the less likely it is for them to find a mate," said Dr. Mark Lewis, director of the U of...

Protein structure initiative launches new resources for the scientific community

...ined. Information about current PSI proteins being solved will be listed. In addition to searching these det...e. The PSI centers will continue to deposit all solved structures in the Protein Data Bank ( www.pdb.org ), an international structural database. So far, t...

UCLA researchers unravel a mystery about DNA

...ration with researchers at Rutgers University have solved longstanding mysteries surrounding DNA transcription, the first step in carrying out instructions contained in our genes. The breakthrough described in an article in the Nov. 17 issue of the journal Science reveals important structural information ab...

Brown scientists map structure of DNA-doctoring protein complex

...chool lab of Thomas Ellenberger announced they had solved the structure of "-integrase ("-Int), the protein ...mobile DNA. Now scientists in the Landy lab have solved the structure of a DNA-protein complex that acts as a team of "nurses," aiding "-Int during this sni...

Oldest animal fossils may have been bacteria

... option out there," Bailey said. The finding also solved a longstanding puzzle. Proponents of the animaltheory had struggled to explain how eggs and embryos could be preserved, asneither fossilizes easily. These bacteria, on the other hand, make better fossil candidates. And bydepositing phosphorite, Thio...

Science's breakthrough of the year -- The Poincar Theorem

... their own to determine whether Perelman had truly solved the Poincar Conjecture. By 2006, the others fina... was little doubt among his colleagues that he had solved the famous problem. This summer, the International mathematics Union decided to award Perelman the F...

Structural mechanism of the E. coli drug efflux pump AcrB

... that inhibit this pump, Sennhauser and colleagues solved the crystal structure of the DARPin inhibitor in complex with AcrB. They were able to confirm that the AcrB pump is split into three subunits, each of which exhibit distinctly different conformations. Each subunit has a differently shaped substrate...

Bioengineer wins $500,000 engineering prize

...related to severe thorax impact injuries have been solved by Fung's "stress wave propagation" theory.Morphometric data worked out by Fung on coronary blood vessels, pulmonary vascular tree, and intestines have proved invaluable for theoretical analyses. His quantitative methods for characterizing stress-st...

Chemical switch triggers critical cell activities

... off a protein like a baton to another enzyme, has solved a key mystery to how cells control some vital functions, according to investigators at St. Jude Children's Research Hospital. A report on this work appears in the January 14 advanced online publication issue of Nature. The St. Jude discovery expla...

Yale chemists show that nature could have used different protein building blocks

...protein had been an elusive goal. Schepartz's team solved the dilemma by designing a molecule that could form a bundle using characteristics found in natural proteins a greasy interior that repels water and a water-friendly exterior. This paper, which provides the first high-resolution picture of such a s...

Cold Spring Harbor Laboratory scientists discover new gene that prevents multiple types of cancer

A decades-old cancer mystery has been solved by researchers at Cold Spring Harbor Laboratory (CSHL). "We not only found a critical tumor suppressor gene, but have revealed a master switch for a tumor suppressive network that means more targeted and effective cancer therapy in the future," said...

Microfluidic chip helps solve cellular mating puzzle

... chip, a team led by Johns Hopkins researchers has solved a long-standing mystery related to the mating habits of yeast cells. The findings, described in the Feb. 18 Advance Online Publication of the journal Nature, shed new light on the way cells send and receive signals from one another and from the en...

Looking for life on Jupiter's icy moon Europa

...Europa and focused on the problems that need to be solved before undertaking a search for life on the frozen moon. With years of experience studying life in the Antarctic and Arctic ice, Lipps, a member of the campus's Museum of Paleontology, knows the bizarre places organisms can thrive, and the unique p...

African carnage -- 1 year's seized ivory likely came from 23,000 elephants

...ccess apparently left a sense that the problem was solved and the nations withdrew their funding. Wasser and colleagues want to see reinstatement of strong enforcement, and also want to see education programs established to teach people in Africa to better manage their wildlife and persuade people in Asi...

Biophysical Society announces new and notable symposium speakers

...a, Santa Cruz. Professor William G. Scott. just solved the first structure of an RNA ligase. This elegant study reveals the mechanism by which RNA is able to copy itself and directly addresses the "chicken or the egg" problem of what came first, proteins or nucleic acids. It is a wonderful contribution...

Computer-designed molecule to clean up fluorocarbons?

... Reasoning that the problem already may have been solved by nature, the NIST/Philip Morris team looked to an enzyme called fluoroacetate dehalogenase used by a South African bacterium, Burkholderia sp. The enzyme enables the bacterium to pull the fluoride ion out of sodium fluoroacetate (disrupting a poiso...

Bacterial walls come tumbling down

...tibiotic. The enzyme structure is the first ever solved of a member of a family of enzymes that remove sugars from lipids and attach them to other sugars. This process is used in a wide range of biochemical reactions, including allergic responses and cell signaling in cancer....

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(Date:10/16/2014)... managers have a new synthesis of recent research findings ... forests in the two states. , The Ecology ... and Washington: A Synthesis of the Relevant Biophysical Science ... report published by the U.S. Forest Service,s Pacific Northwest ... from managers for a synthesis of the large body ...
(Date:10/16/2014)... respiratory tract infections and worldwide claims the lives ... and Ghent University have succeeded in developing a ... infection. , Xavier Saelens (VIB/UGent): "We discovered ... for the development of a novel approach to ... in numerous small children and elderly people." , ...
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Breaking Biology News(10 mins):New report synthesizes best available science on management of moist mixed-conifer forests 2New perspectives for development of an RSV vaccine 2Sandata Announces Case Study with Quality Care Services, Inc. 2
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