Gene Targeting & Transgenic Facility at UCHC

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Conditional Knockout (CKO)

1. The CKO constructs generated in the GTTF contain:

 
   
 

2. Investigators have following breeding options:

Option 1: Remove the neo cassette by crossing the germline chimeras with a FLP mouse line. The F1 mice will carry a floxed allele as following:

 
 
 
 

Option 2: Cross the germline chimeras with a Cre mouse line to delete the floxed fragment together with the neo cassette.

 

 
 
 
  Option3: Cross F1 mice with tissue specific Cre or inducible Cre lines