Your Query returns 15 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
AAC2BC0158789606NAT2    243400
AAC2NM_0000159606NAT2    243400
AAC2BC0672189606NAT2    243400
AAC2NC_0011344932ANC2    PET9   
aac2M62833470
aac2AP005044227882
AAC2AF48092070075
AAC2AF48092270075
AAC2AF35677970075
AAC2AF35678270075
AAC2M340754932
AAC2Z357914932
AAC2X772914932
AAC2AY1834574952
aac2NC_003155227882

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

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Text2Knowledge ... Yong Huang 2002