Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
H2-ObNM_01038910090Ob    H-2I    H-2Ab    H-2Ob    H2-Ab    H2-Ab2    H2-IAb2   
H2-ObNT_03964910090
H2-ObNT_03966210090

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

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Text2Knowledge ... Yong Huang 2002