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. 2014 Jun 2;211(6):1027–1036. doi: 10.1084/jem.20131939

Table 1.

Loss of either 53BP1 or KU80 does not rescue CtIP knockout mouse lethality

CtIP+/-53BP1−/− x CtIP+/−53BP1−/− CtIP+/−KU80+/− x CtIP+/−Ku80+/−
Genotypes CtIP+/+ 53BP1−/− CtIP+/− 53BP1−/− CtIP−/− 53BP−/− CtIP+/+ KU80−/− CtIP+/− KU80−/− CtIP−/− KU80−/−
Live-born pups
Observed 25 35 0 1 15 0
Expected 15 30 15 8.0625 16.125 8.0625
Total mice screened 60 129

CtIP+/− 53BP1−/− mice and CtIP+/−Ku80+/− were intercrossed. Genotypes and number of animals generated by the breeding are indicated.