Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
MAPKK2BC0186459606MEK2    PRKMK2    MKK2    MAP2K2   
MAPKK2NM_0306629606MEK2    MKK2    PRKMK2    MAP2K2   
MAPKK2BC0004719606MEK2    PRKMK2    MKK2    MAP2K2   

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

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