p53<L> p53<F2-10> Trp53<F2-F10> targeted mutation 1, Anton Berns p53<lox> Tp53<flx> http://identifiers.org/mgd/MGI:1931011 p53Fl p53<Fl> Trp53<Fl> Trp53<F2-10> MGI:1931011 p53<Co> Conditional ready|No functional change p53<flox> p53<LoxP> Trp53<loxP> p53<fl> Trp53<tm1Brn> p53<F> p53<F2-10F>