Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
MGC55784BC0488907955E(Pc)    zgc:55784   
MGC55784NM_2010757955E(Pc)    zgc:55784   

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

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Text2Knowledge ... Yong Huang 2002