http://identifiers.org/mgd/MGI:4455753 EUCOMM-projects Usp4<tm1a(EUCOMM)Hmgu> HEPD0621_3_C06 HEPD0621_3_C08 HEPD0621_3_E08 HEPD0621_3_F07 HEPD0621_3_E05 targeted mutation 1a, Helmholtz Zentrum Muenchen GmbH MGI:4455753 HEPD0621_3_F06