Your Query returns 40 Accession Numbers:
Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
NAT2NM_13408610090AA408026    Slc38a1    243400
NAT2BC0106209606ATA1    SAT1    SNAT1    SLC38A1    243400
NAT2BC03037810090Slc38a1    243400
NAT2NM_0306749606ATA1    SAT1    SNAT1    SLC38A1    243400
NAT2L256084932
NAT2X858074932
NAT2Z729324932
NAT2AF0316493702
NAT2AF1350392853
Nat2NM_01087410090243400
NAT2U230529606243400
NAT2U234349606243400
NAT2U534739606243400
Nat2NW_04747010116
NAT2AY2302519606NAT2*12D    243400
NAT2AY2302529606NAT2*5I    243400
NAT2AY3318079606243400
NAT2BC0158789606AAC2    243400
NAT2AF0427409606NAT2*5D    243400
NAT2AF0558749606NAT2*14G    243400
NAT2AF0558759606NAT2*6D    243400
NAT2AF3203099606243400
NAT2AF3480749606243400
NAT2AF3480759606243400
NAT2NM_0000159606AAC2    243400
NAT2U3724910090243400
NAT2U3725010090243400
nat2AJ31466010096
Nat2AJ25012310090243400
Nat2AJ31465610090243400
Nat2AJ31465710090243400
Nat2AJ31465810090243400
Nat2AJ31465910091
Nat2NT_03946210090243400
Nat2AJ25171010090243400
Nat2BC01297210090243400
NAT2BC0672189606AAC2    243400
NAT2NT_0307379606243400
Nat2NM_05385410116
NAT20N/A

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

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Text2Knowledge ... Yong Huang 2002