Your Query returns 13 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
smbD83536562mukB   
smbD26562562mukB   
smbZ692404896smb1    SPAC26A3.08   
SMBNM_00922510090SM-B    SM11    SNRNP-B    Snrpb   
SMBNC_0011374932SMB1   
SmBAY0611717227
smbAE000682224324aq_287   
smbAE000657224324aq_287   
SmBNG_0003237227Sm B    CG5352    CT17002    snRNP B   
smbNC_000918224324
SmBAE0036287227
SmBNM_0575737227CG5352   
SmBNT_0337797227CG5352   

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

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Text2Knowledge ... Yong Huang 2002