Tag: "linking" at biology news

With support for the EPA, biologists go out on a genetic limb to help stem migratory songbird declines

...songbirds show ahigh level of geographic fidelity, linking haplotypes between breeding andwintering sites reveals a clearer picture of year-round habitat-use. "Our preliminary analyses of mitochondrial DNA sequences demonstrates that thepopulation structure of a neotropical migrant can be understood," said ...

Impacts of Pfiesteria: Outbreaks could substantially reduce tourism revenues, UD Sea Grant researcher says

...afoodLaboratory, has found "no scientific evidence linking seafood-borne illness with Pfiesteria." Fifty-nine percent of respondents indicated that a report of Pfiesteria in their state waters would reduce their seafood consumption.When asked if seafood from affected waters is safe to eat if it's properlyh...

Communications towers killing birds

...s, said Beason, whoalso called for further studies linking light, RF (radio frequency) signals andbird behavior. -- Voluntary cutbacks on lighting in tall buildings are saving thousands ofavian lives in downtown Toronto, according to Michael Mesure of FLAP, the FatalLight Awareness Program in Erin, Ontario. ...

Warner-Lambert Company gift creates bioinformatics program

...ed understanding ofthe complex web of interactions linking the individual components of a livingcell to the integrated behavior of the whole organism. "We are very pleased that the U-M is willing to begin a graduate level educationand research program in this important area," said Wendell Wierenga, Ph.D.,sen...

Study identifies key molecular mechanism in cancer and rheumatoid arthritis

...ulia A. Romashkova detail akind of molecular tango linking NF-kappaB with a trio of proto-oncogenes: Myc,Akt, and Ras. "Ras, Akt, and Myc are essential players in growth factor signaling," Makarovsays. "They relay the signals required for proliferation. We found thatNF-kappaB links the actions of these prote...

Landmark progress in understanding ribosome structure-- research done at Brookhaven Lab's light source

...50S subunitperforms the chemical steps involved in linking together amino acids to formproteins. The 30S and 50S subunits work together to generate proteins in allliving cells. Both Nature papers report on structural components at a resolution of fiveangstroms, a measurement that is about one ten-thousandth ...

Particulate matter causing air pollution

...raised concernrecently because of numerous studies linking it to serious health problems. Fineparticulate matter (called PM 2.5 because it is less than 2.5 microns indiameter or 30 times smaller than the diameter of a human hair) includes soot,dust, aerosols, metals and sulfates primarily emitted by vehicles...

Response to cocaine linked to biological clock genes

...have molecular cousins in humans, and the pathways linking these genes are alsovery similar across species spanning vast amounts of evolutionary time. "Because of the genetic similarities in fruit flies and humans, fruit flies canserve as a valuable model to study the complex biological factors underlyingdru...

Botanical evidence indicates "Shroud of Turin" originated in Jerusalem area before 8th century

... on plants of Israel. The area isbounded by lines linking Jerusalem and Hebron in Israel and Madaba and Karak inJordan. The area is anchored toward the Jerusalem-Hebron zone with the additionof a third species, Cistus creticus, identified as being placed on the Shroudthrough an analysis of pollen and floral...

Plakin proteins brace nerve axons and allow for the transport of neurotransmitter vesicles

...akins also can stabilize intercellular junctionsby linking them to the cytoskeleton," says Fuchs "But now we are seeing howtruly versatile these fascinating plakin proteins are in that some of them canbind to and stabilize microtubules." An important component of the cytoskeleton, microtubules serve as the ...

APS launches new online journal to focus on link between genes and function

...g at an expeditious pace, and the enormous task of linking genes tofunction has now begun," wrote Editor-in-C...s to be a 'one-stop shop' while serving asa bridge linking genome sequencing and mapping to integrative physiology andclinical medicine," Dzau said in his edit...

Magnetic Fluids More Complex Than Previously Thought

...sist of finely ground carbonyl - acompound made by linking metal atoms and carbon monoxide molecules -suspended in a non-magnetic liquid such as mineral oil. Ordinarily,carbonyl is non-magnetic, but it becomes magnetic when exposed to amagnetic field, a characteristic that scientists call paramagnetic. "In t...

Scientists Determine Atomic Structure Of Lego-Like Molecule That Self-Assembles Into Cell's Cargo Capsule

...ence of five may be unique to proteins involved in linking up to form coatedvesicles for transport as clathrin does, says Robert Fletterick. "The clathrin structure shows a gratifying elegance that would have delightedBucky Fuller," he adds. The researchers employed an advanced form of x-ray crystallography ...

Sandia Discovery About Protein May Help Clean Up Pollutants, Find Cures For Diseases

ALBUQUERQUE, N.M -- A discovery linking the shape of a unit called the heme in aprotein to protein function may prove useful in a range of scientificadvances, including finding cures for diseases and cleaning up pollutants, saysdiscoverer John Shelnutt, a physicist at the Department of E...

Jefferson Scientists Find Further Proof Of Damage To The FHIT Gene In Breast Cancers

... Institute in Bethesda have found further evidence linking damage to thetumor suppressor gene FHIT to the development of breast cancer. In a study of 92 Icelandic women, the researchers, led by Kay Huebner,Ph.D., professor of microbiology and immunology at Jefferson Medical College anda member of J...

Common Respiratory Virus Identified As One Cause Of Heart Muscle Damage That Can Lead To Sudden Death

...VD in children or adults. Anddespite the findings linking adenoviruses to pediatric LVD, many researchersrejected the idea that it caused some of the adult cases for which a cause couldnot be determined, says Towbin. At Towbin's invitation, leading supporters of enteroviral -- not adenoviralcauses -- of LV...

Nerve Cells On The Go

...scribing the first continuousline of communication linking a receptor in a growth cone's membrane to actin,the final agent of change. The cell's cytoskeleton is a continuously changing fabric of proteinfilaments underneath the cell membrane. Actin is one of its major components.Beyond giving a cell m...

How Nerve Cells Get In Touch - A Molecular Model Of Synapse Formation And Retrograde Signalling In The Brain

...generate an ordered network of some 1015 synapses, linking about 1012 nervecells. The extraordinary specificity of synaptic connections in the adult brainis generated in five consecutive steps. Initially, immature nerve cells migrateto their final location in the brain (1). There, they form processes, so cal...

Binding Proteins Shown To Play Key Role In Early Brain Development

... Foundation. Chiba and Hoang focused on individual linking units, or neurons, and the geneticactivity that tells the early developingneuron process known as the axon where to go. "Our lab is interested in thegenetic programs for brain development,especially making the connection from what is encoded in DNA t...

Two Brandeis Scientists Shed Light On The First Photoreceptor Known To Set Circadian Rhythms

...which operate somewhat like a genetic chain letter linking a plethora of genesthat are cyclical in their activity. When it detects light, cryptochrome beginsto regulate a few choice clock genes, such as period and timeless, each of whichin turn regulates a few more genes, and so on. Eventually, researchers s...

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