Your Query returns 7 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Rpo1-2BC0048829606FLJ21921    FLJ10816    RPA135    POLR1B   
Rpo1-2NM_0190149606RPA135    FLJ10816    FLJ21921    POLR1B   
Rpo1-2NM_00908610090RPA2    128kDa    RPA116    RPA135    D630020H17Rik   
Rpo1-2NW_04765810116
Rpo1-2NT_07834710090
Rpo1-2BC06065610090RPA2    RPA116    128kDa    D630020H17Rik    RPA135   
Rpo1-2NM_03177310116RPA2   

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

Google

Text2Knowledge ... Yong Huang 2002