Your Query returns 4 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
CG7538AE0036787227Mcm2   
CG7538NM_0577737227MCM2    PCR3    dMCM2    DmMCM2    l(3)rL074   
CG7538NT_0337777227MCM2    PCR3    dMCM2    DmMCM2    l(3)rL074   
CG7538NG_0004857227MCM2    PCR3    dMCM2    DmMCM2    CT23073    l(3)rL074   

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

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Text2Knowledge ... Yong Huang 2002