Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
H-2AbNM_01038910090Ob    H-2I    H-2Ob    H2-Ab    H2-Ab2    H2-IAb2    H2-Ob   
H-2AbNM_01037910090IAb    Ia2    Ia-2    Abeta    H2-Ab    I-A    I-Abeta    H2-Ab1   

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* OMIM link based on symbol match for human and mouse.

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Text2Knowledge ... Yong Huang 2002