Table 1.

Molecular outcomes from treatment of HSPCs with ZFNs and an oligonucleotide donor

Outcome	Frequency (%)
No change	46.1
NHEJ-mediated deletions	30.5
Oligonucleotide-templated gene modification	18.8
NHEJ-mediated insertions	2.8
Half gene modification, half NHEJ	1.5
Capture of the donor oligonucleotide	0.4