Your Query returns 6 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Map2k7NM_01194410090MKK7    sek2    Jnkk2    Prkmk7    5930412N11Rik   
MAP2K7BC0382959606MAPKK7    MKK7    PRKMK7    Jnkk2   
MAP2K7BC0053659606MAPKK7    MKK7    PRKMK7    Jnkk2   
Map2k7NT_03945510090
MAP2K7NM_1451859606MKK7    Jnkk2    MAPKK7    PRKMK7   
MAP2K7NT_0778129606

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

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Text2Knowledge ... Yong Huang 2002