Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Nat4NM_01281810116AA-NAT    Aanat   
Nat4NM_00959110090SNAT    Nat-2    Aanat   
NAT4NC_0011454932

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

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Text2Knowledge ... Yong Huang 2002