When biologists want to compare different sequences of DNA or protein, it’s as simple as plugging the information into a browser and pressing enter. Within 15 seconds, an online software tool contrasts one sequence of DNA with up to 18 million others catalogued in public databases. Now, a software tool developed by Whitehead Institute scientists promises to apply this same computational muscle to the far more intricate world of protein interaction networks, giving researchers a new view of the complexities of cellular life.
DNA sequencing technologies allow scientists to easily identify genes and their nucleotide building blocks -- linear strings of information represented by the letters A, C, T and G. The wide accessibility of these technologies has enabled both companies and academic labs to assemble huge libraries of genomic information. Computer engineers, in turn, have helped scientists navigate these oceans of data through tools such as BLAST, the primary software platform that scientists use to compare protein and DNA sequences. However, many researchers believe that the next phase of genomics research will be to map out interaction networks -- the cell’s internal wiring system through which genes and proteins communicate.
"The 80s and 90s were about sequences," says Trey Ideker, a former Whitehead Fellow who recently was named an assistant professor of bioengineering at University of California, San Diego. "Now we’re starting to see newer types of technologies -- like microarrays -- that allow us to look at how a cell, in its entirety, responds to drugs and other kinds of stimuli. These technologies will revolutionize biology." Already, researchers like Whitehead’s Rick Young are beginning to assemble libraries of cellular network pathway maps using microarrays.
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23.08.2017 | American Chemical Society
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23.08.2017 | Empa - Eidgenössische Materialprüfungs- und Forschungsanstalt
Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.
As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...
Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.
Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...
For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.
While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...
An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.
The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...
A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.
Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...
16.08.2017 | Event News
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23.08.2017 | Life Sciences
23.08.2017 | Life Sciences
23.08.2017 | Physics and Astronomy