Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
zgc:56643BC0495157955MGC56643    Ap2m1   
zgc:56643NM_2010267955Ap2m1    MGC56643   

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

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Text2Knowledge ... Yong Huang 2002