Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
MGC56418BC0490177955His3.3B    zgc:56418   
MGC56418NM_2011017955His3.3B    zgc:56418   

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

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Text2Knowledge ... Yong Huang 2002