Your Query returns 5 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
AGGGNM_1451799606
AGGGNM_026612100908kDa    1810011O01Rik    Ndufb2   
AGGGNM_0045469606CI-AGGG    NDUFB2   
AGGGNM_1758289913NDUFB2   
AGGGBC013510100908kDa    Ndufb2   

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

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Text2Knowledge ... Yong Huang 2002