Your Query returns 1 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
CT23860NG_0007507227RPB3    br17    l34Dg    polII    CG7885    rpII33    l(2)34Dg    l(2)br17    RNA polII    RNA pol II    l(2)k05605    BG:DS00941.10    RNA polymerase II   

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

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Text2Knowledge ... Yong Huang 2002