Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Nat-1NM_00867310090Nat1   
NAT-1NM_1538119606SLC38A6   
nat-1Z140926239

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

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Text2Knowledge ... Yong Huang 2002