Your Query returns 7 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
atp6s1NM_1732657955fb33b05    wu:fb33b05    atp6ap1   
Atp6s1NM_0187941009016A    CF2    ORF    AC45    C7-1    XAP-3    VATPS1    Atp6ip1    Atp6ap1    300197
ATP6S1BC0007249606ORF    VATPS1    XAP-3    Ac45    CF2    XAP3    ATP6IP1    16A    ATP6AP1    300197
ATP6S1NM_001183960616A    CF2    ORF    Ac45    XAP3    XAP-3    VATPS1    ATP6IP1    ATP6AP1    300197
atp6s1AY0995137955
Atp6s1NW_04805210116
Atp6s1NM_03178510116C7-1   

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

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Text2Knowledge ... Yong Huang 2002