Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
MafYBC02854310090RPB12    RPABC4    RPB7.0    RPB10alpha    Polr2k   
MafYNM_02312710090Mt1a    RPB12    RPABC4    RPB7.0    RPB10alpha    Polr2k   

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

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Text2Knowledge ... Yong Huang 2002