Your Query returns 1 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
hsRPB1NM_0009379606RPB1    RPO2    POLR2    POLRA    RPBh1    RPOL2    RpIILS    hRPB220    POLR2A   

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

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Text2Knowledge ... Yong Huang 2002