EUCOMM-projects HEPD0772_8_H06 targeted mutation 2e, Helmholtz Zentrum Muenchen GmbH Ncam1<tm2e(EUCOMM)Hmgu> HEPD0772_8_A08 MGI:5299730 http://identifiers.org/mgd/MGI:5299730 HEPD0772_8_B05 HEPD0772_8_H05