Fig. 2. Immunoblot analysis of CHO K1 and xrs-5 cell extracts. Nuclear (N;
panels A and B, lanes 3 and 5) or cytoplasmic (C; panels A and B, lanes 2 and
4) cell extracts from CHO K1 or xrs-5 cells were examined by western
blotting using a Ku86 (A) or Ku70 (B) antibody. HeLa whole-cell extracts (lane
1) were used as positive controls.