On the Cover
September / October 2005
A transgenic zebrafish embryo in the
early stages of development that incorporates a naturally fluorescent
protein from a jellyfish (Aequorea victoria) can show scientists where
specific proteins are being expressed in cells.
For his studies of essential trace
metal homeostasis, University of Maine Assistant Professor of Molecular
and Environmental Toxicology Greg Mayer uses transgenic zebrafish that
have incorporated a gene construct containing a green fluorescent
protein that is turned on in response to heavy metals. Mayer is just one
of several scientists using the UMaine zebrafish facility.