Furthermore, the evolutionary forces driving the extraordinary KRAB-ZFP expansion and diversification have remained mysterious for decades.
2
Silencing is initiated by the recruitment of TRIM28 to a target locus by members of the Krab-ZFP.
3
Third, we optimized promoters for guide RNA and evaluated mini-promoters for expression of KRAB-SadCas9 in liver cells.
4
As a result, tetrapod genomes contain unique sets of KRAB-ZFP genes, consisting of ancient and recently evolved family members.
5
Using assembly-deficient mutants, we employed small-angle X-ray scattering and biophysical techniques to characterize binding to member of the Krab-ZFP family.
6
With the intent of improving repression efficiency in mammalian cells, researchers have also fused dCas9 with a KRAB repressor domain.
7
Although several hundred human and mouse KRAB-ZFPs have been identified or predicted, the biological functions of most KRAB-ZFP family members have gone unexplored.
8
Finally, we comment on the computational, genetic, and biochemical challenges of studying KRAB-ZFPs and attempt to predict how these challenges may be soon overcome.