Table 1.

Summary of Attached EB Primary Gene Trap Screen

Vector Undifferentiated Embryoid Bodies No. (%)
PT1  Blue* Blue  30 (4)  
GT18.geo   159 (31)  
PT1  Blue  White  7 (1) 
GT18.geo    13 (3)  
PT1  White  Blue  61 (8) 
GT18.geo    181 (35)  
PT1  White  White 681 (87)  
GT18.geo    156 (31) 
Vector Undifferentiated Embryoid Bodies No. (%)
PT1  Blue* Blue  30 (4)  
GT18.geo   159 (31)  
PT1  Blue  White  7 (1) 
GT18.geo    13 (3)  
PT1  White  Blue  61 (8) 
GT18.geo    181 (35)  
PT1  White  White 681 (87)  
GT18.geo    156 (31) 
 PT1  GT1.8geo 
Total no. of NeoR clones  779 (100)  509 (100) 
Total blue clones  98 (13)  353 (69) 
Identifiable patterns among β-gal–positive clones 32 (33)  47 (13) 
 PT1  GT1.8geo 
Total no. of NeoR clones  779 (100)  509 (100) 
Total blue clones  98 (13)  353 (69) 
Identifiable patterns among β-gal–positive clones 32 (33)  47 (13) 
*

Blue indicates detectable β-gal activity.

Percentage was determined by dividing the number of clones with identifiable patterns of lacZ expression by the total number of clones demonstrating β-gal activity.

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