Your Query returns 7 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
NRB54NM_02314410090nonA    Nono    300084
NRB54BC0031299606NMT55    P54NRB    P54    NONO    300084
NRB54BC0121419606NMT55    P54NRB    P54    NONO    300084
NRB54BC0282999606NMT55    P54NRB    P54    NONO    300084
NRB54BC0023649606NMT55    P54NRB    P54    NONO    300084
NRB54NM_0073639606P54    NMT55    P54NRB    NONO    300084
NRB54BC00546510090nonA    Nono    300084

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

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Text2Knowledge ... Yong Huang 2002