Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
hsRPB10aBC0181579606RPB7.0    hRPB7.0    RPB12    ABC10-alpha    RPB10alpha    RPABC4    POLR2K   
hsRPB10aBC0008069606RPB7.0    hRPB7.0    RPB12    ABC10-alpha    RPB10alpha    RPABC4    POLR2K   
hsRPB10aNM_0050349606RPB12    RPABC4    RPB7.0    hRPB7.0    RPB10alpha    ABC10-alpha    POLR2K   

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

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Text2Knowledge ... Yong Huang 2002