Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
D[a2]NM_0797587227Da2    SAD    AcrE    nAChR    nAcRs    CG6844    alpha2    Acr96Ab    CG14728    Dalpha2    nAcr96Ab    alpha[[2]]    nAcRalpha-96Ab   
D[a2]NM_1701467227Da2    SAD    AcrE    nAChR    nAcRs    CG6844    alpha2    Acr96Ab    CG14728    Dalpha2    nAcr96Ab    alpha[[2]]    nAcRalpha-96Ab   
D[a2]NT_0337777227Da2    SAD    AcrE    nAChR    nAcRs    CG6844    alpha2    Acr96Ab    CG14728    Dalpha2    nAcr96Ab    alpha[[2]]    nAcRalpha-96Ab   

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

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Text2Knowledge ... Yong Huang 2002