Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Sm BNG_0003237227CG5352    CT17002    snRNP B    SmB   
Sm BX597469606
Sm BX5974710090

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

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Text2Knowledge ... Yong Huang 2002