The bacterium Photorhabdus luminescens is a constant companion of some roundworms. These worms assault insect larvae, thereby infecting them with the bacteria; the pathogens then attack the cells of their victims with a deadly ...
Cell & Microbiology
Mar 21, 2013
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Highly developed antennae containing different types of olfactory receptors allow insects to use minute amounts of odors for orientation towards resources like food, oviposition sites or mates. Scientists at the Max Planck ...
Plants & Animals
Mar 18, 2013
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(Phys.org) —Many of life's processes rely on light to trigger a chemical change. Photosynthesis, vision, the movement of light-seeking or light-avoiding bacteria, for instance, all exploit photochemistry. Discovering exactly ...
Biochemistry
Mar 15, 2013
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(Phys.org)—A research team at Weill Cornell Medical College has solved the 3D crystal structure of a member protein in one of the most important classes of human proteins—the G protein-coupled receptors (GPCRs). These ...
Cell & Microbiology
Feb 27, 2013
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The last time you popped a pill for a headache or a stuffy nose, did you think about how the medication actually alleviates your pain or unblocks your stuffy nose? Curing a disease is a complex process and involves understanding ...
Biochemistry
Jan 14, 2013
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(Phys.org)—Epigenetics - the science of how gene activity can be altered without changes in the genetic code - plays a critical role in every aspect of life, from the differentiation of stem cells to the regulation of metabolism ...
Biotechnology
Jan 8, 2013
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The Notch signaling pathway helps determine cell fate determination, differentiation and proliferative ability of numerous cells. How it accomplishes these tasks has been a puzzle, but researchers led by those at Baylor College ...
Cell & Microbiology
Nov 29, 2012
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The human nose has millions of olfactory neurons grouped into hundreds of different neuron types. Each of these neuron types expresses only one odorant receptor, and all neurons expressing the same odorant receptor plug into ...
Cell & Microbiology
Nov 14, 2012
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Synchrotrons played a key role in the research that won Brian Kobilka, a professor and chair of Molecular and Cellular Physiology at the Stanford School of Medicine, the 2012 Nobel Prize in chemistry on Wednesday.
General Physics
Oct 25, 2012
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Scientists have determined the three-dimensional structure of a complete, unmodified G-protein-coupled receptor in its native environment: embedded in a membrane in physiological conditions.
Biochemistry
Oct 22, 2012
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