Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
top3[beta]NC_0043547227TOP3    CG3458    Top3beta   
top3[beta]NM_0785047227TOP3    CG3458    Top3beta   

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

Google

Text2Knowledge ... Yong Huang 2002