Your Query returns 4 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
MORT1BC0003349606MGC8528    FADD   
MORT1NM_0038249606MGC8528    FADD   
Mort1NM_15293710116Fadd   
MORT1X847099606

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

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Text2Knowledge ... Yong Huang 2002