Thursday, July 20, 2006

Biological Noise

Just another experiment that makes me think all we need to know we could learn from yeast.
Apparently there is a yeast library with every protein C-terminally tagged with GFP. These guys used it to study the expression variation between individual cells. (Nature access required) Interestingly it was environmental response/ stress response genes that showed the most variability. They suggest this is an aquired adaptation so that a genetically homogenous population contains enough variability to adapt to a changing environment.