Your Query returns 9 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Sek1NM_00915710090MEK4    MKK4    JNKK1    Serk1    PRKMK4    Map2k4   
SEK1BC0360329606JNKK1    MEK4    PRKMK4    SERK1    MKK4    MAPKK4    JNKK    MAP2K4   
SEK1BC0607649606JNKK1    MEK4    PRKMK4    SERK1    MKK4    MAPKK4    JNKK    MAP2K4   
SEK1NM_0030109606JNKK    MEK4    MKK4    JNKK1    SERK1    MAPKK4    PRKMK4    MAP2K4   
Sek1BC00478210090Cek8    Hek8    Tyro1    Epha4   
Sek1BC02983310090MEK4    MKK4    JNKK1    PRKMK4    Map2k4   
Sek1BC05216410090Cek8    Hek8    Tyro1    Epha4   
Sek1NM_00793610090rb    Sek    Cek8    Hek8    Tyro1    2900005C20Rik    Epha4   
SEK1U1831010090

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

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Text2Knowledge ... Yong Huang 2002