Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
4732496B02NM_17301010090Hpve6a    Ube3a   
4732496B02NM_01166810090Hpve6a    Ube3a   

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

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Text2Knowledge ... Yong Huang 2002