Your Query returns 4 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Atp6n1NM_01692010090Vpp1    Vpp-1    ATP6a1    Atp6n1a    Atpv0a1    Atp6v0a1   
ATP6N1BC0323989606VPP1    Stv1    Vph1    a1    ATP6N1A    ATP6V0A1   
ATP6N1NM_0051779606a1    Stv1    VPP1    Vph1    ATP6N1A    ATP6V0A1   
Atp6n1NM_03160410116Atp6n1a   

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

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Text2Knowledge ... Yong Huang 2002