Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
PMSB1BC0208079606HC5    PSC5    FLJ25321    PSMB1   
PMSB1BC0005089606HC5    PSC5    FLJ25321    PSMB1   
PMSB1NM_0027939606HC5    PSC5    FLJ25321    PSMB1   

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

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Text2Knowledge ... Yong Huang 2002