Primary Identifier | MGI:5301263 | Allele Type | Targeted |
Attribute String | Modified regulatory region, Null/knockout | Gene | Rr15 |
Transmission | Germline | Strain of Origin | 129P2/OlaHsd |
Is Recombinase | false | Is Wild Type | false |
molecularNote | A floxed neomycin selection cassette was inserted in "differentially methylated region 1" (DMR1) upstream of Igf2. Insertion was in HpaII site 4 located in a Lrrfip1 (GCF2) binding consensus sequence. Properly targeted mice were crossed to mice carrying Tg(Pgk1-cre)1Lni to excise the selection cassette and leave behind a single loxP site that disrupts the GCF2 binding element. |