ScienceDaily: Biotechnology News |
- Substance P causes seizures in patients infected by pork tapeworm
- Most lethal known species of prion protein identified
- Cellular switches: From the RNA world to the 'modern' protein world
- How DNA finds its match
| Substance P causes seizures in patients infected by pork tapeworm Posted: 09 Feb 2012 02:28 PM PST A neuropeptide called Substance P is the cause of seizures in patients with brains infected by the pork tapeworm.  |
| Most lethal known species of prion protein identified Posted: 09 Feb 2012 12:28 PM PST Scientists have identified a single prion protein that causes neuronal death similar to that seen in "mad cow" disease, but is at least 10 times more lethal than larger prion species.  |
| Cellular switches: From the RNA world to the 'modern' protein world Posted: 09 Feb 2012 07:16 AM PST Scientists have discovered the molecular mechanism of a G protein family. G proteins play a central role in cellular signal processing. They are described as molecular switches that oscillate between 'on' and 'off', regulated by effectors. Biochemists have now gained fundamental insights into the mechanics of these switches.  |
| Posted: 08 Feb 2012 10:23 AM PST It's been more than 50 years since James Watson and Francis Crick showed that DNA is a double helix of two strands that complement each other. But how does a short piece of DNA find its match, out of the millions of 'letters' in even a small genome? New work shows how it's done.  |
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