靶向载体通过在编码小鼠NtsR2基因3'端末端序列的终止密码子和polyadenylation位点间插入一个IRES-Cre,同时在IRES-Cre上游放置一个Frt-flanked NEO cassette构建。通过同源重组正确重组的ES克隆被扩增后,注入到小鼠囊胚中以产生嵌合体雄性。Frt-flanked NEO cassette的存在会阻止Cre表达,直到遇到FlpO。(来源:J:263745)
Basic Information
(129X1/SvJ x 129S1/Sv)F1-Kitl+
Legend:
cx: complex: > 1 genome feature ot: other: hemizygous, indeterminate,... (F): Female
(M): Male
N: normal phenotype
(#): related diseases count