ScienceDaily: Biotechnology News |
- Making biological images sharper, deeper and faster
- Turtles next to lizards on family tree, discovery based on microRNAs shows
- Shuttle service in cells
- A new target to inhibit malaria and toxoplasmosis infection
| Making biological images sharper, deeper and faster Posted: 25 Jul 2011 12:29 PM PDT For modern biologists, the ability to capture high-quality, three-dimensional (3-D) images of living tissues or organisms over time is necessary to answer problems in areas ranging from genomics to neurobiology and developmental biology. Looking to improve upon current methods of imaging, researchers have developed a novel approach that could redefine optical imaging of live biological samples by simultaneously achieving high resolution, high penetration depth, and high imaging speed.  |
| Turtles next to lizards on family tree, discovery based on microRNAs shows Posted: 25 Jul 2011 09:37 AM PDT For decades, paleontologists and molecular biologists have disagreed about whether turtles are more closely related to birds and crocodiles or to lizards. Now scientists have developed a new technique using microRNAs for classifying animals, and the secret is out. Turtles are closer kin to lizards than crocodiles.  |
| Posted: 25 Jul 2011 07:13 AM PDT Scientists have discovered a new enzyme, which gives decisive insights into protein import in specific cellular organelles (peroxisomes). Researchers report that the enzyme Ubp15p collaborates with two other proteins to convert the protein transport machinery back into its initial condition after work has been completed. The enzyme detaches a specific signal sequence from a protein which is important for transportation and recycling of this protein.  |
| A new target to inhibit malaria and toxoplasmosis infection Posted: 25 Jul 2011 06:14 AM PDT Scientists have characterized a protein complex that allows the agents that cause malaria and toxoplasmosis to infect host cells. This is a highly original mechanism, since the parasite supplies both the receptor which it inserts into the host cell membrane and the ligand it exposes at its surface. The researchers have now shown the three-dimensional structure of this complex. The new data paves the way for new drugs designed to inhibit the formation of the protein complex in question and block invasion by Plasmodium falciparum in red blood cells.  |
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