Tag: "gate" at biology news

'Trap' crop saves Texas cross timbers melon production

...elons annually, with a potential value at the farm gate of $5,000 per acre, Whitney said. And the industry has a huge economic effect, not only on the agricultural community but on the small and mid-size towns throughout the area. "Starting now (mid-June) our growers will ship a million pounds of waterme...

Physics tip sheet #42

... The first demonstration of a controlled-NOT logic gate for photons, an experimental source of single photons, and a prototype quantum memory device are among the highlights of a talk focusing on photon-based quantum information processing. Devices such as these are vital in the development of optical qua...

On the tip

...connecting the inside and outside of the cell. The gate opened when the researchers added calcium ions. ... The researchers also found that the TRPM5 protein gate opens up again through an interaction with another cellular molecule called PIP2. Liman cautioned ...

Protein-hungry cells 'go fishing,' report Purdue biologists

...such substance, a protein called colicin, that the gate admits into the E. coli, marking a first for the b... as a group, we have never seen how an individual gate works to bring a protein inside. This information could tell us a lot about our own metabolism." Th...

First structure of transporter enzyme family is solved

...The enzyme is literally gate-keeping. Usually the gate is open towards the outside of the cells and various substances can reach the sugar-binding pocket in the middle of the enzyme, embedded in the cell membrane. "Only when the enzyme identifies lactose does the other gate, connected to the inside of t...

Barrel structure in globular proteins may transport small molecules

... "In all of the available crystal structures, the gate appears to be closed," Amaro said. "When the gate is closed, it is nearly impossible for the ammonia molecule to pass through. Therefore, the reactio...

New cause identified for incurable muscle condition

...duct the current. In the case of this patient, the gate to the sodium channel was inactivated, or stuck in a closed position....

Virginia Tech inventions, creations can improve lives

...rporation, received a patent for a "Diode-assisted gate turn-off thyristor" (6,426,666 ), a switch that significantly increases the turn-off voltage that can be used in high current/power semiconductor devices, leading to improved power electronics and industry application. The invention is also economic...

Study shows how eye cells die when exposed to lead

...ings don't get out. But Bax appears to open up the gate to the fort, letting cytochrome c escape." Guy Perkins, Fox's colleague at the National Center for Microscopy and Imaging Research at the University of California, San Diego, produced detailed images of the animals' rod mitochondria for the study. ...

Deadly coral toxin exposes ion pump's deepest secret

...o open alternately but never at the sametime - one gate must close before the other can open. But no concr...ction is the strictcoupling between its gates. The gate at one end must know whether the gateat the other end is open or closed, which means that the two mu...

UT Southwestern scientists uncover new mechanism by which cells rid themselves of damaged proteins

...s active sites inside a cylinder-like shape with a gate that prevents the entry of normal cellular protein... to be marked with polyubiquitin, but can open the gate themselves, enter the active cylinder and be degraded. The scientists conducted the research by perf...

Understanding DNA damage: New study suggests environment surrounding DNA plays key role in controlling charge transport

...there is nothing there to effectively modulate and gate the motion of the positively charged electron holes. That reduces the probability of charges moving across the modified region." Beyond the implications for DNA damage in living organisms, the work also has implications for proposed uses ...

Structural studies reveal how potassium channels are inactivated

...ed a potential route through which an inactivation gate can reach the central pore of the channel. Inactiv.... A question arose about whether the inactivation gate could fit through a side window to plug the pore. According to MacKinnon, the earliest work on ion c...

Toxic compound opens potentially important cell gates

...n the disposal process allows ADP-ribose to open a gate for transporting calcium through cell membranes in the brain, lungs, heart, spleen, liver, kidney, and elsewhere. "It's important to know what opens and closes calcium channels, because calcium transport into and out of cells is a significant step in...

Saving Florida's gentle giants

...sound beams between the two gates. The edge of one gate is fitted with a series of sound emitters placed a...ceivers that have been fitted onto the edge of one gate detect the signals being generated. Should a manatee be between the closing gates, the sensors detec...

Novel protein is both ion channel and enzyme

...tains a domain whose opening and closing acts as a gate for calcium and a domain that acts as a kinase. "The finding is also important because, although there are channels known to have various enzymes in them, it's generally not known what they do. However, in this case, we know that the enzyme phosphor...

Ancient mediterranean port city may have been holy land way station

...rs to the two now submerged Aperlae churches. The gate held a small water basin that was probably used by visitors for ritual cleansing before they entered the churches. "The church locations may seem unusual, but they emphasize the religious importance of water and gave seafarers a place to pray for saf...

Researchers to announce remarkable fossil discovery bearing on ancient birds, dinosaurs

...fy themselves to the person beside the parking lot gate so that he can let them in. Entrance to the lot is south off South Road opposite the chemistry department buildings (Kenan Labs)....

Understanding how the first cells emerged

... the channel, parts of the proteins bond to form a gate that blocks most ions. However, hydrogen ions captured at the outside of the gate are rapidly conducted through the proteins by a series of chain reactions that eventually spews hydr...

Rotational motion detected in gates controlling nerve impulses

... separation increased from 26.5 angstroms when the gate was closed, to 29.5 angstroms when the gate was fully open." To determine the nature of that movement, Cha labeled other nearby sites and repeat...

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(Date:4/22/2014)... have characterized a set of clock genes that drive ... of species, from flies to humans. Over 15 mammalian ... are more. A team from the Perelman School of ... approaches could find them. , To accelerate clock-gene ... of Pharmacology and first author Ron Anafi, MD, PhD, ...
(Date:4/22/2014)... April 22, 2014 Researchers at UT Southwestern Medical ... from depression . , A team of ... by which ghrelin (a hormone with natural anti-depressant properties) ... potentially powerful new treatment for depression in the form ... The study, published online in April,s issue of ...
(Date:4/22/2014)... Calif.) The risk of pregnancy among women using ... is more than 10 times greater over a 10-year ... a study by researchers at Yale University and UC ... the medical journal Contraception , the study found ... method marketed under the brand name Essure. , ...
(Date:4/22/2014)... Washington, DC (April 22, 2014) The International ... May 22-26 in Seattle, Washington. The theme of ... life" means in a networked and digital society. ... and attended by over 2,200 Communication scholars representing ... largest scholarly international communication conference in the world. ...
(Date:4/22/2014)... is the standard measurement for assessing glycemic control over ... are typically measured every few months in a laboratory, ... accurately estimates A1c using self-monitored blood glucose (SMBG) readings, ... ( DTT ), a peer-reviewed journal from Mary Ann ... the DTT website at http://www.liebertpub.com/dtt . ...
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