...activate essentially any gene,” she says. The technical leap from mutating and deactivating a gene or ...Zhang’s lab describe just such a system, which they call CRISPR/Cas9 Synergistic Activation Mediator or SAM... and it consists of three components:
1. A nucleolytically inactive Cas9-VP64 fusion;
2. A sgRNA incorporating...distinct effector domains that work together synergistically, modeled after natural transcription activation...GeCKO, a lentiviral CRISPR library enabling genome-scale, knockout screening).
As the Zhang lab's Nature ... is robust, specific, and can facilitate genome-scale gain-of-function screening when combined with a ...demonstrated in a paper in Cell that they could typically achieve 90-99% knockdown with minimal off-target...