Your Query returns 7 Accession Numbers:
Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
CG8189AE0035517227ATPsyn-b   
CG8189NM_0792877227ATPsyn-b   
CG8189NM_1683657227ATPsyn-b   
CG8189NT_0374367227ATPsyn-b   
CG8189NC_0043537227ATPB    CG11154    ATPsyn-b    ATPsyn-beta   
CG8189NM_1668087227ATPB    CG11154    ATPsyn-b    ATPsyn-beta   
CG8189NM_1668097227ATPB    CG11154    ATPsyn-b    ATPsyn-beta   

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

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Text2Knowledge ... Yong Huang 2002