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Tag: "attach" at biology news

Proteins anchor memories in our brain

...ers. Those chemicals travel across the synapse and attach or "bind" to proteins on the dendritic spine that ...c spine: Inside the cap, AMPA receptors can attach to scaffolding proteins so the receptors remain in place and can receive nerve signals via neurotran...

Stormy days ahead for coral reefs

...olonies, the strength of the sea-bed to which they attach and the change in force of the waves as they move across the reef. "This enables us to predict the likely changes in composition of the coral in response to present and future storms or tsunamis." This understanding, in turn, can be used by mana...

New approach to BSE successful in lab

.... There are types of RNA known as siRNAs which can attach themselves to specific genes, thereby preventing these from being read. The production of the appropriate protein is thus shut down. This effect is known as RNA interference; its discovery was rewarded with this years Nobel Prize for Medicine. We mod...

Varying weight training intensity increases growth hormone in women

...original molecule. In addition, growth hormone can attach to binding proteins. It has been shown that there are more than 100 variants of the growth hormone molecule. This study looked at growth hormone variants using two different tests that measured an immune response, known as immunoassays. Immunoassays...

New clues to how sex evolves

...his activity is reminiscent of the way chromosomes attach to the nuclear envelope during meiosis in other or...gans it's the Pairing Centers, not telomeres, that attach to the nuclear envelope. They do so seemingly randomly, not in a single bunch; nevertheless, the ass...

NIH selects Purdue to use phi29 DNA packaging motor for National Nanomedicine Development Center

...d not be able to enter cells." The team plans to attach the nanomotor to a lipid sheet, cell membrane and liposome. A liposome is a pocket made up of fat molecules. The liposome would, in effect, take the place of the capsid into which the phi29 biological motor pumps DNA. The nanomotor, once embedded int...

Cocaine high caused by interference in neuronal receiving stations

...bunit of dopamine receptors, called D2R, tended to attach to the NR2B subunit and was responsible for preventing the normal activation of the glutamate receptor. Such activation normally involves addition to NR2B of a molecular group called a phosphate by an enzyme called a kinase, and the cocaine-induced D...

Regulating the nuclear architecture of the cell

...istones in the nucleosomes. Su(var)3-9 proteins attach methyl groups to the histone labeled H3 at its ninth amino acid residue, which is a lysine. In the histone code the methylation target is known as H3K9, where K stands for lysine. Methylation of chromatin causes it to condense. Another Su(var) gen...

Researchers study role of natural organic matter in environment

...cules of natural organic matter can simultaneously attach to the same ion, creating much larger aggregates. These aggregates are responsible for the formation of bio-fouling layers on membrane surfaces. In addition to clogging filters, natural organic matter can change the mobility of certain toxic metals...

First biomarker for human sleepiness identified in fruit flies

...eep deprivation's effects on the brain has been to attach electrodes, which can be a bit awkward when your target is a killer whale. Hopefully the markers we develop will make these kinds of phenomena much easier to study."...

Study helps explain why botulinum toxin is so deadly

... anti-toxins to protect soldiers -- molecules that attach to the binding site on the toxin or on the cell. ... longer bind to it. If a mutated toxin was made to attach to the mutated receptor, the combination might target botulinum toxin against over-active cells in t...

Seeing a neurotoxin's deadly grip

... although they are both necessary for the toxin to attach to the neuron and enter it. Both groups found that docking between the toxin and the double sites is more extensive than previously believed. "Its like nestling a cube into a corner," Chapman said. "The surfaces mesh perfectly, so that the toxin is j...

Study reveals molecular basis of botulism toxin's deadly activity

... how the binding proceeds. Botulinum toxins first attach to a portion of a protein found on the surface of nerve cells that mates with two parallel, narrow grooves on the toxin. Because this protein receptor is only exposed on active cells, the toxins target those nerves that are most important to a victim...

Treatments for urinary infections leave bacteria bald, happy and vulnerable

... are capped by an adhesive compound that lets them attach to and invade host cells. "E. coli is a Gram-negative bacterium, so it has an inner and an outer membrane, and many of its most important tools for interacting with the outside world are assembled in the space between the membranes," Pinkner explain...

Scientists discover how body fights to control spread of cancer

... The exposed areas of the cell allow the cancer to attach to the blood vessel wall. The cancer cells then eventually penetrate the blood wall to form tumours at secondary sites. "The attachment of cancer cells to the blood vessel wall is one of the key steps in the spread of cancer. It has been known for ...

New molecular pathway could reveal how cells stick together

... immune cells circulating around and being able to attach to tissues that need their attention," she said. A new signaling pathway holds promise of new therapeutic targets. "We're talking about an entirely new signaling pathway that hasn't been identified previously," Page-McCaw said. But it's too soon to...

Scientists map key landmarks in human genome

... that is bound by a nucleosome; they can, however, attach to DNA "linkers" between two nucleosomes. With their new method, Fisher's group found that transcription factor binding indeed typically occurs in the "linker" regions in between nucleosomes, rather than in the DNA regions that are tied up by the nuc...

New studies find amazing concentration of species unique to East African mountains

...or conserving the Eastern Arc Mountains that would attach a monetary value to these "ecosystem services" and divert funds paid by water users to the forest managers and surrounding communities. The Eastern Arc Mountains curve through eastern Tanzania and just over the border into southeastern Kenya. Its fo...

UCF scientists' molecular discovery could help drugs target unhealthy cells

...entists understand how they someday may be able to attach therapeutic drugs to molecules. "It's significant because we wouldn't expect atoms to move that way," said UCF physics professor Talat Rahman, who co-authored the study with Sergey Stolbov. "Atoms tend to move randomly, like dust particles, and get...

New medications, cancer diagnosis goals of UH engineers with $1M in grants

...ese processes are detected. Usually scientists attach tags, also referred to as labels, to biomolecules (proteins, DNAs or RNAs) that allow these biomolecules to be tracked. This tracking tells researchers the location of the biomolecules and whether the biomolecules have bonded with a specific substra...

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(Date:11/24/2009)... What constitutes fish food is a matter of debate...hat fish get almost 50 percent of their carbon fro... between the terrestrial and aquatic ecosystems. ,...ton shows this is not likely to be true. Algae pro... life, according to research published this week i...
(Date:11/23/2009)..., Cambridge, Mass. November 23, 2009 Applied ...ntain lily ( Hosta lancifolia ), a characteristic ...osely packed ripples along the edges. The simple c...n resulting from bending during differential growt..., stretching foam ribbons. , Haiyi Liang, a post...
(Date:11/23/2009)..., CHAMPAIGN, Ill. A new study provides "incontro...n of Toba on the island of Sumatra about 73,000 ye...00 miles from the epicenter, researchers report. ,...meters of ash into the atmosphere, leaving a crate...100 kilometers long and 35 kilometers wide. Ash fr...
Breaking Biology News(10 mins):Fish food fight: Fish don't eat trees after all, says new study 2Fish food fight: Fish don't eat trees after all, says new study 3The cause behind the characteristic shape of a long leaf revealed 2Supervolcano eruption -- in Sumatra -- deforested India 73,000 years ago 2New drug candidate prolongs the lives of pancreatic cancer patients 52135 1New drug candidate prolongs the lives of pancreatic cancer patients 52135 2Reveal the enemy 9290 1Wolf reintroduction proposed in Scottish Highland test case 9286 1Wolf reintroduction proposed in Scottish Highland test case 9286 2Wolf reintroduction proposed in Scottish Highland test case 9286 3
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