Your Query returns 4 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
CG7921AE0037727227Mgat2   
CG7921NM_1435067227GlcNAc-TII    Mgat2   
CG7921NT_0337777227GlcNAc-TII    Mgat2   
CG7921AY0475667227

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

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Text2Knowledge ... Yong Huang 2002