ABeta<o> II<delta> MHC II<-> http://identifiers.org/mgd/MGI:2658725 MHC II<0> MHC-II<delta> MHCII<delta> targeted deletion, H2 complex MHC II KO MHC class II<delta> MGI:2658725 Null/knockout H2<dlAb1-Ea> MHCII<-> MHC II<delta>