Table 1.
No. of insertions per clone | ES clones, % |
---|---|
1 | 38 |
2 | 32 |
3 | 12 |
4 | 8 |
5 | 6 |
6 | 1 |
7 | 3 |
Purified clones with insertions in GPCR genes (total of 105 characterized clones) were checked for the total number of the vector insertions by quantitative slot-blot hybridization. We found up to seven insertions per mutant clone.