53BP1<-> Trp53bp1<Gt(neo)531Lex> m53BP1<tr> Trp53bp1<Gt(VICTR54)19Lex> Trp53bp1<Gt(OST94324)Lex> gene trap OST94324, Lexicon Genetics MGI:2661096 http://identifiers.org/mgd/MGI:2661096