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Tag: "unknown" at biology news

Researchers Discover That Microbes Can Produce Miniature Electrical Wires

...ior to the discovery of its conductive pili it was unknown how this electron transfer might take place. The conductive pili that Geobacter produces may have a variety of applications for the electronics industry. Ultrafine wires, often referred to as nanowires, are required for further miniaturization of el...

Discovery of an American salamander where it shouldn't be: Korea

...e majority of species in the world, but is totally unknown in Asia and rare outside the Americas. "I've disc...n the world could it have gotten there? Previously unknown but still living vertebrate species like this can provide us with key information on the history of ...

Study Finds Moderate Hypothermia A Safe Treatment For Traumatic Brain Injury In Kids

...lowing injury but within 24 hours of admission, or unknown time when the injury occurred (i.e. child abuse) or were an adolescent (13-18 years old). Assessments of safety included mortality, infection, coagulopathy (blood clotting), arrhythmias and hemorrhage as well as ability to maintain target temperatur...

UCR chemist part of team identifying new areas of gene regulation

...stone H3," said Zhang, referring to the previously unknown location of a chemical opening to allow genetic transfers to occur. "We found acetylation at this site near the entry-exit points of the DNA superhelix as it wraps around the nucleosome is required for recruiting the nucleosome remodeling complex SW...

Genome study of beneficial microbe may help boost plant health

...seases. "This genomic sequence reveals previously unknown traits of P. fluorescens that increase its potential for biological control," says Loper. She is a plant pathologist with USDA's Agricultural Research Service (ARS) and is based at Oregon State University, Corvallis. The P. fluorescens genome was seq...

Unique library of plant genes germinates, takes root at UNC

... with known function are related to this gene with unknown function?' or 'what biochemical functions have been gained or lost in different species,'" Vision said. Answers to those kinds of questions will lead to plants that yield more food and resist damage from diseases and insects more successfully, he sa...

Census of Marine Life explorers surprised by diversity, density of Arctic creatures

...ientists use DNA extractions to discern previously unknown differences between species and insights into the history of Southern Ocean fauna. The scientists found on the ocean floor miniscule meiofauna, single-celled creatures less than half a millimeter long, the most successful and numerous animal in the ...

High fidelity keeps human DNA assembly line humming

... hook up. Preloading of NTPs hints at a previously unknown quality control station to maintain accuracy of RNA synthesis. If an NTP doesn't match up properly with DNA, the system stalls ?and even backs up to correct the error. "We're able to show how an error will be sensed and corrected," Burton said. "The...

Computational Tool Predicts How Drugs Work In Cells, Advancing Efforts To Design Better Medicines

... The molecular targets of many drug candidates are unknown and are often difficult to tease out from among the thousands of gene products found in a typical organism. This “blindness?in the welter of potential cellular targets means that the process of designing therapeutic drugs is neither precise nor effic...

Second messenger NAADP shows fast, dose-related impact on satiety cycle

...han externally. However its mode operation remains unknown ?and controversial in several aspects. Results of a new study "establishes NAADP as a new second messenger, and the study of this novel molecule has potential to extend its clinical significance, possibly as a candidate for treating obesity," accord...

Atmosphere may cleanse itself better than previously thought

...d, in part because OH radicals are in some ways an unknown quantity. "One of the biggest questions in our field concerns the amount of OH radicals the atmosphere holds," he said. "It's tough to get a handle on them because they are so reactive ?which means they vanish fast ?and also because we don't have co...

DOE JGI launches IMG public online microbial genome data clearinghouse

...etals. Examining the neighborhood around a gene of unknown function in multiple species selected from the organism browser may yield clues of what its role might be in your particular species," said Andersen. "The interface is quite intuitive, which is a benefit for someone like me that does not like to read...

Chemical Engineer Kao Explores Antibiotic Synthesis With DNA Chips

...ip is known. Then researchers add a sample with an unknown composition of fluorescently labeled DNA molecules. The base pairs in the sample's single-stranded DNA, groups of which correspond to individual genes, stick to similar, or homologous, regions of the DNA tethered to the chip. The presence of the resu...

Analysis Of Human Genome To Predict The Development Of Illnesses

...cular composition and biological process. With the unknown ones, they are logged (comparing similarities and differences with respect to these same molecules in other living things) and molecules with a similar sequence to theirs are observed in order to deduce their function and to classify them in the same...

Owl genomics presents a HEPATOCHIP for diagnosis of non-alcoholic steatohepatitis

...hepatitis is a progressive disease of the liver of unknown etiology, characterized histologically by fatty acid accumulation, hepatocyte damage and inflammation resembling alcoholic hepatitis. NASH is a critical stage in the process that spans from hepatic steatosis to cirrhosis and hepatocarcinoma. NASH is ...

Microarrays as phenotype

...e that we set out to do ?assessing the function of unknown genes is feasible," said Shaulsky. "It can be done with a microarray phenotype." Others who participated in the research included Drs. Nancy Van Driessche, Ezgi O. Booth, Paul Hill and Adam Kuspa, all of Baylor College of Medicine; and Janez Demsar,...

Compounds in plastic packaging act as environmental estrogens altering breast genes

...g tumor-suppressing proteins and a large number of unknown proteins. The exception was decreased expression of the GAD1 gene. It encodes a key enzyme of the GABA-ergic system, which could be involved in hormonal regulation and breast cancer development. GAD1 has consistently been overexpressed in primary bre...

Advancements In Genomics Foster Deep Sea Discoveries

... across membranes and a large number of previously unknown genes. Scripps has been a pioneer in researching life in the deep ocean abyss for more than 50 years. Bartlett’s studies follow the pioneering work in the 1950s of Claude ZoBell, who provided the first evidence of deep sea high-pressure microbes, an...

Chromosome Deletion Predicts Aggressive Neuroblastoma

...igh-risk neuroblastomas," said Dr. Attiyeh. It is unknown what causes the deletion of genes on chromosome 11, at a location designated chromosome 11q23. However, the loss of material at that site apparently removes the protective effect of a tumor suppressor gene, and thereby allows the tumor to grow. Patie...

Small species back-up giant marsupial climate change extinction claim

...ts and kangaroos including many species previously unknown to have occurred in the Darling Downs fossil record. The results suggest that the extinction of Darling Downs megafauna was caused by a massive shift in climate rather than by the arrival of humans who over hunted animals or destroyed habitats by bu...

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