Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
snRNA:U2:38ABaNR_0013507227
snRNA:U2:38ABaNR_0016737227K6    U2    dU2    snRNA1    snRNA2    CR32882    U2snRNA    U2-38ABa    snRNA:U2    U2snRNA39B    snRNA[[1]]   
snRNA:U2:38ABaNT_0337797227K6    U2    dU2    snRNA1    snRNA2    CR32882    U2snRNA    U2-38ABa    snRNA:U2    U2snRNA39B    snRNA[[1]]   

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

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Text2Knowledge ... Yong Huang 2002