Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
XAT1NM_08085210090Asc-2    Slc7a12   
XAT1AJ41766310090

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

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Text2Knowledge ... Yong Huang 2002