Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
zgc:55976BC0472007955fa11h08    Orc1    wu:fa11h08   
zgc:55976NM_1999337955Orc1    fa11h08    wu:fa11h08   

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

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Text2Knowledge ... Yong Huang 2002