Your Query returns 8 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Stx2NM_01270010116Stx1b    Stx1b2   
stx2AJ25123110863
stx2AJ251232108916
stx2AJ251233108917
stx2AJ251234108918
stx2AB030484562
stx2AB052227562
stx2AF162758562

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

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Text2Knowledge ... Yong Huang 2002