Your Query returns 22 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Gap43NC_0043547227CG7088    bnb   
Gap43NM_0786827227CG7088    bnb   
Gap43NM_1676337227CG7088    bnb   
Gap43NM_1676347227CG7088    bnb   
Gap43NM_1676357227CG7088    bnb   
GAP43AF4818829685
GAP43AY4621139685
Gap43NT_08236310090162060
GAP43M256679606162060
gap43NM_1313417955gap    cb310   
Gap43NM_00808310090B-50    Basp2    GAP-43    162060
Gap43NW_04735610116
GAP43BC0079369606B-50    PP46    162060
GAP43NM_0020459606B-50    PP46    162060
GAP43AY0835539544
GAP43M8835610116
Gap43NT_03962410090162060
Gap43BC02828810090B-50    GAP-43    162060
GAP43G309269823
GAP43NT_0056129606162060
GAP43NM_2033589913
Gap43NM_01719510116Basp2   

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

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Text2Knowledge ... Yong Huang 2002