Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
sb:cb400NM_1313687955SBN    mad    cb400    smad5    fb67b04    wu:fb67b04    madh5   
sb:cb400BC0656447955mad    SBN    fb67b04    wu:fb67b04    cb400    madh5   

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

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Text2Knowledge ... Yong Huang 2002