targeted mutation 1a, Wellcome Trust Sanger Institute EPD0696_5_E06 EPD0696_5_C06 EPD0846_2_G08 EPD0846_2_C08 EPD0846_2_F08 Krt31<tm1a(KOMP)Wtsi> Conditional ready|Reporter|Null/knockout EPD0846_2_A07 KOMP-CSD-Project MGI:4881948 http://identifiers.org/mgd/MGI:4881948