Unprecedented genetic access to brain provided by Rockefeller University scientists
For scientists studying the brain, this weeks Nature announces a remarkable new map describing previously uncharted territory, plus the means of exploring the new horizons for themselves. Rockefeller University scientists led by Nat Heintz, Ph.D., and Mary Beth Hatten, Ph.D., are well under way on a genetic atlas of the mammalian brain that provides unprecedented access to central nervous system regions, cell classes and pathways.
"Researchers studying degenerative and developmental diseases from Parkinsons and Huntingtons to autism and epilepsy now will have genetic access to the brain without all the effort required of doing their own molecular genetics from scratch," says Heintz. "Gensat will advance the experimentation that can be done based on the information provided in the atlas; to me this is the key contribution of our project."
The project, called Gensat (Gene Expression Nervous System Atlas) employs a method for manipulation of "bacterial artificial chromosomes" or BACs, developed by project co-leader Heintz, professor and head of the Laboratory of Molecular Biology at Rockefeller and an investigator at the Howard Hughes Medical Institute. BACs in an early form provided the backbone of The Human Genome Project; Heintz discovered how to manipulate them by inserting, changing or deleting parts of the large gene sequences composing them. Once created, the modified BACs for individual genes are inserted into the genome of laboratory mice to assess gene expression.
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