Jan 2, 2007

2007 week 01: Articles of Related Interest

Designer Protein Usage:

How Bacteria Can Escape Destruction: Scientists Discover Mechanism Used To Pump Out Drugs

Bacterial resistance to antibiotics is a major challenge for the current treatment of infectious diseases. One way bacteria can escape destruction is by pumping out administered drugs through specific transporter proteins that span the cell membrane, such as AcrB.


Prions:

Genetically Modified Cattle Are Prion Free

The U.S. Department of Agriculture's Agricultural Research Service have announced initial results of a research project involving prion-free cattle. ARS scientists evaluated cattle that have been genetically modified so they do not produce prions, and determined that there were no observable adverse effects on the animals' health.

Other:

Genomic Variation Easier To Identify With 'Microinversions' Software

Computer scientists at the University of California, San Diego, and Brown University have created a software system that more accurately detects "microinversions," mutations that consist of tiny sequences of reversed DNA. The software gives biologists a powerful new tool to study genomic variation between and within species. The system is explained in the online edition of the Proceedings of the National Academy of Sciences.


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