Your Query returns 9 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Slc38a3NW_04780110116
SLC38A3BC0428759606G17    SN1    604437
Slc38a3NT_03947710090604437
Slc38a3BC05533910090Nat1    604437
Slc38a3BC05484610090Nat1    604437
SLC38A3NM_0068419606G17    SN1    604437
SLC38A3NT_0225179606604437
Slc38a3NM_14577610116Sn1    Nat1   
Slc38a3NM_02380510090Nat1    D9Ucla2    Slc38-3    0610012J02Rik    604437

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

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Text2Knowledge ... Yong Huang 2002