Your Query returns 11 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
ATPsyn-bNC_0043537227ATPB    CG8189    CG11154    ATPsyn-beta   
ATPsyn-bNM_1668087227ATPB    CG8189    CG11154    ATPsyn-beta   
ATPsyn-bNM_1668097227ATPB    CG8189    CG11154    ATPsyn-beta   
ATPsyn-BAF0258017237
ATPsyn-BAF0258027241
ATPsyn-bBT0048787227
ATPsyn-bBT0114537227
ATPsyn-bAE0035517227
ATPsyn-bNM_0792877227CG8189   
ATPsyn-bNM_1683657227CG8189   
ATPsyn-bNT_0374367227CG8189   

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

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Text2Knowledge ... Yong Huang 2002