Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
U1-70BC00216910090SNRNP70    70kDa    Snrp70   
U1-70NM_0092241009070kDa    Srnp70    Rnulp70    SNRNP70    2700022N21Rik    3200002N22Rik    Snrp70   

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

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Text2Knowledge ... Yong Huang 2002