Your Query returns 4 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
mtnd1NC_0023337955ND1   
MTND1NC_0018079606ND1   
mtND1U2588340039
MTND1NM_1737089606

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

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Text2Knowledge ... Yong Huang 2002