Your Query returns 7 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
SNRP70BC0003429606RNPU1Z    RPU1    U1RNP    U170K    U1AP    180740
SNRP70BC0013159606RNPU1Z    RPU1    U1RNP    U170K    U1AP    180740
SNRP70NM_0030899606RPU1    U1AP    U170K    U1RNP    RNPU1Z    180740
Snrp70NT_03942010090180740
Snrp70BC00216910090U1-70    SNRNP70    70kDa    180740
SNRP70NT_0111099606180740
Snrp70NM_0092241009070kDa    U1-70    Srnp70    Rnulp70    SNRNP70    2700022N21Rik    3200002N22Rik    180740

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

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Text2Knowledge ... Yong Huang 2002