Your Query returns 4 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Da2NM_0797587227SAD    AcrE    D[a2]    nAChR    nAcRs    CG6844    alpha2    Acr96Ab    CG14728    Dalpha2    nAcr96Ab    alpha[[2]]    nAcRalpha-96Ab   
Da2NM_1701467227SAD    AcrE    D[a2]    nAChR    nAcRs    CG6844    alpha2    Acr96Ab    CG14728    Dalpha2    nAcr96Ab    alpha[[2]]    nAcRalpha-96Ab   
Da2NT_0337777227SAD    AcrE    D[a2]    nAChR    nAcRs    CG6844    alpha2    Acr96Ab    CG14728    Dalpha2    nAcr96Ab    alpha[[2]]    nAcRalpha-96Ab   
Da2X787047227

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

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Text2Knowledge ... Yong Huang 2002