Tag: "type" at biology news

Molecular Piracy Turns Protein Into Traitor

...ptor agonist, the virus used genetics to perform a type of biological 'combinatorial chemistry'. This process can be used to produce a family of similar molecules. The virus then tested the related molecules against our own immunological defence mechanisms, making modifications until it found a molecule w...

Lethal Parasite Prime Suspect In Fish Kills At Salton Sea

... been less well defined, but infections with a type of bacteria known as Vibrio spp. have been identified as the potential cause of some of the massive fish mortalities". In late summer and early autumn of 1996, a large mortality event in birds was found to be caused ...

New Description Of Protein May Be Basis For Regulating Cholesterol

...ucture and inner workings of a terpene synthase, a type of protein thatsynthesizes a naturally occurring class of complex compounds whose membersrange from the essential oils of herbs, incense and perfumes to the well-knownsubstance cholesterol. By describing a terpene synthase in three dimensions and of...

Gene For Last Major Form Of Batten Disease Discovered

...on. The newly discovered gene, CLN2, codes for a type of enzyme that has neverbefore been described in humans or other mammals. Nonetheless, it appears to beone of the most common protein-degrading enzymes (proteases) in the brain, saysRaju K. Pullarkat, Ph.D., of the New York State Institute for Basic...

New Mechanism To Explain Carbon Monoxide Poisoning Identified

...ity that there is more than one way toexplain this type of poisoning. Hopefully this will improve our generalunderstanding of what's going on in patients, and with that a greatersensitivity to the need to be more aggressive about prevention and treatment ofcarbon-monoxide exposure." This study was...

Nutrients, Ground Water, And The Chesapeake Bay - A Link With Pfiesteria?

...The amount of ground water varies according to the type of rockand sediment beneath the land surface. Up to one-half of the nitrogen entering the Bay travels through ground water. It is possible that about 10 to 20 percent of the phosphorus entering the Chesapeake Bay also travels through ground wate...

Scientists Find New Trigger For Nerve Cell Death

...rived of serum, the current flowingout through one type of potassium channel had increased by 61 percent. By 9hours, the amount of potassium inside the cells had dropped by 13 percent. Thepotassium currents in cells that were dying by necrosis didn't change, however. To determine whether potassium...

Competitive Inhibition May Enhance Safety Of Minimally Processed Fruits And Vegetables

...se pathogens grow and cause disease depends on the type of product,conditions of storage (time, temperatur...glucose) naturally found in or addedto foods. The type of metabolite produced depends on the type of LAB in foodsand their metabolic response to them. "Bio...

Further Proof That An Altered Rb-2/p130 Gene Leads To Lung Cancer

...than normal. According to Giordano, the first type of test to be developed will accurately describe the stage of cancer--either I, II, III, or IV--of an individual, based on the levels of protein in the lung cancer tumor. Another potential test aims to analyze Rb-2/p130 protein to ...

Disease Takes Its Toll On Waterfowl Populations

...n produced by the bacterium, Clostridium botulinum type C. The toxin is closely related to botulism toxin... and often drown or suffocate. Most outbreaks of type C botulism occur in ducks, and species such as pintails, shovelers, and mallards are among those tha...

UC Geologist "Flip-Flops" On Understanding Of Crinoid Life Style

...above, Meyer's model would reveal a huge spiderweb type complex floating on the top of the sea. That's muchdifferent than the old textbook model which shows Uintacrinusbobbing with its arms hanging down into the sea. Meyer rejectedthat idea two years ago, noting there were not special structuresto help th...

New Form Of Gene Therapy Holds Promise For The Future

...otein is used in place of theluciferase gene, this type of gene therapy, in theory, would activate thatprotein in response to the body's own inflammatory signals. "The production level of the anti-inflammatory protein should reflectthe intensity and duration of the inflammatory condition," said Mu...

Overfeeding Normal Infant Rats Affects Three Generations: Permanently Changes Basic Metabolism, Interferes With Reproduction

...by age 35, whichhas changed the tribe's basic body type from thin to obese in a century. Taylor and Diaz's study was supported by the University of Washington'sRoyalty Research Fund, which gets its money from licensed technology developedby UW researchers....

Purdue Researchers Track Oil Spill's Effects On Sea Otters

...o be learned as well. "In circumstances where this type of environmental damage has occurred, the key to establishing the level of responsibility is to determine the level of damage induced by the spill itself," he says. "By being able to track the biomarkers of oil-induced injury, such as cytochrome P450...

Stress Lowers Sperm Count By Overwhelming Cells That Make Testosterone

...esearch is based. Hardy scrutinized the level and type of enzyme activity in precursor, immature,and adult Leydig cells. He saw that enzyme reactions skyrocketed in the adultcell. Compared to the immature Leydig cell, enzyme activity in the adult cellwas ten times more effective at metabolizing glucocort...

Max-Planck Researchers Unravel The Structure Of The Methane Forming Enzyme

... From the viewpoint of a synthetic chemist this type of thioether cleavage is extremely difficult to perform, nearly impossible in aqueous solutions, and has so far no equivalent in the organic chemistry. The enzyme circumvents the problems in aqueous solution by wrapping the reaction into ...

Herpes Virus Strain Identified As A Trigger In Multiple Sclerosis

...orm of MS isthe relapsing-remitting type. In this type of MS, new symptoms appear orexisting ones become more severe, followed by periods of partial or totalrecovery. These flare-ups of new or intensified symptoms last for variableamounts of time. A second form of MS is a chronic and progressive one in...

Recombinant Protein Immunizes Mice, Promises New Strategy Against Infection And Cancer

...w, recombinant protein by fusingtogether a special type of protein called a 'heat shock protein,' isolated...or viral proteins of interest to elicit thedesired type of immune response. "This study shows that the heat shock proteins can function as vehicle...

SFU Researcher Fools Forest Pest Into 'Barking Up The Wrong Tree'

...'re smelling other trees in the forest, too. Every type of tree, says Huber, releases signature compounds, or 'volatiles,' into the air. And just as we can smell the fragrance of a nearby pine or fir, abark beetle can sort through the scent bouquet of a mixed forest to find the tree that it wants. The bee...

Mysterious Wildlife Disease

...or natural and man-made toxins that can cause this type of disease have so far been negative. Miller said that field investigations led by the USGS Center are under way, and scientists are hoping that clues from the new locations will help to reveal the cause of the disease. Wildlife managers t...

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