http://identifiers.org/mgd/MGI:5050183 Cul4b<tm1a(EUCOMM)Hmgu> MGI:5050183 Null/knockout|Reporter|Conditional ready EUCOMM-projects targeted mutation 1a, Helmholtz Zentrum Muenchen GmbH HEPD0735_3_D01 HEPD0735_3_E03 HEPD0735_3_H02