A new study reveals how the amygdala is involved in controlling predatory behavior in mice.
October 29, 2001|
Fruitfly biologists have developed some elaborate genetic tricks to express transgenes in a spatially restricted manner. The bipartite GAL4/UAS system exploits the yeast GAL4 transcriptional activator and the upstream activating sequence (UAS) to which it binds to drive transgene expression. In the October 23 Proceedings of the National Academy of Sciences, Thomas Osterwalder and colleagues at Yale University describe an enhanced conditional, tissue-specific expression system that can take advan